Re: [expert] Hard drives: any thoughts?

2002-05-22 Thread darklord

On Tuesday 21 May 2002 11:43 pm, you wrote:

 Ashley

I'm sorry, I must have missed part of this message. What were you trying to 
say Ashley? Thanks! :-)

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Re: [expert] Hard drives: any thoughts?

2002-05-22 Thread darklord

On Tuesday 21 May 2002 11:49 pm, you wrote:

 I must have hit Ctrl+X instead of Ctrl+C.  ;)

 Ashley

Ah, so that was it! Will do pronto... :-)

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Re: [expert] Hard drives: any thoughts?

2002-05-22 Thread civileme

Ashley Reynolds wrote:

On Sun, 19 May 2002, Sridhar Dhanapalan wrote:

I've been looking at the hard drive scene over the last few months in
preparation for purchasing a new system. I've got most of the hardware details
sorted out, but there is one area that I'm not quite settled on: hard drives. I
am basically looking for an affordable 80GB IDE drive that can deliver fast and
reliable (i.e. able to run 24x7) performance. I want to buy two of them so I can
make a RAID0 out of them.

Of course, they need to play well with Linux, and with any other 'alternate'
OS/kernel I throw at it. From what I have read, that rules out Western Digital.
Since I prize reliability, that would rule out IBM (IBM is offloading their hard
drive business to Hitachi, so that's another minus for them). So the way I see
it, only Seagate and Maxtor are still in the race. I checked out
storagereview.com and the Maxtor DiamondMax Plus D740X (AKA 'Viper') 80GB
appears to be neck-and-neck with the Seagate Barracuda ATA IV 80GB.

Any thoughts, people? Thx.


Hi Sridhar,

I'm surprised that no-one has recommended Seagate drives yet!   They are
what I use in _all_ of my machines, and all of my customer's machines.  I
have never had any problems with them, at all.  Aside from that fact,
they're dirt cheap at the moment.  Well, in Australia at least.

Ashley

--
Ashley Reynolds
[EMAIL PROTECTED]


Interesting

Interesting indeed.  I haven't bought a Seagate since lost interrupts 
and install freezes with them back about 6.1 and 7.0 time.  At the time, 
they were totally useless for any VIA chipset board with kernel 2.2. 
 (ST38421A and a 10G Baracuda)

Experiences like that are what dictates lasting impressions, however 
erroneous they may be.  With IBM in the toilet at present, and Quantum 
gone, I am looking for something I can use besides Maxtor, because I 
hate to place reliance on a single brand.  WD is still totally out of 
the running and will continue to be until they learn to build quality in 
insttead of spend their money on customer relations for broken drives. 
 (But if I wanted to teach employees how to take care of customers, I 
would arrange a Temporary duty at WD.-)

Civileme








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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread James

I've generally had good luck with Fujitsu's but did run into an
interesting problem with a 6 gig version of it.  We bought a lot of 100
of the drives with a previous company I was with.  In the production
line the drives had installed on them a whopping 75 megs of FreeBSD and
our software.  Normally a drive to drive clone took on the order of 30
minutes (multiple drives on the receive end would slow it down somewhat)
What we did run into was 2 cases of drives (12 to a case) that were the
slowest clones I'd ever seen 16 hours to write 75 megs (limited
production test in our shop run once a problem had been found on the
line.)  and format the drives.  Once they were finished they ran
just fine.  As long as you never had to write to them again.  A 100k
copy from cd to HDD could take 25 to 30 minutes.  Fujitsu sent out a rep
to look at the problem we had and left us two cases of 10 gig drives for
our trouble. (The gesture was appreciated but 6 gigs was already
overkill.) Never did find out why but it seemed to be a bad lot.  

James 

On Mon, 20 May 2002 22:57:23 -0400
darklord [EMAIL PROTECTED] wrote:

 On Monday 20 May 2002 09:56 pm, you wrote:
 
  The other day I opened up a store bought system, and was bowled over
  to see an oem fujitsu drive inside.  Very interesting.  I don't like
  assembly line systems; the custom approach is much better. But this
  looked like at least one thing they did right inside that box.
 
  I also ran into a couple of fujitsu 2.5 form factor drives in a
  proprietary kiosk a while back, and I was pleasantly surprised at
  how well they integrated into a desktop machine; no wierdisms with
  slave/master stuff like with some other laptop drives I've seen.
 
  But I've never seen the inside of a Tivo...would be interesting to
  hear about that!
 
  LX
 
 Can't comment about the Tivo (although I think they look interesting!)
 but my old 1992 Atari Falcon 030 computer used to use a Fujitsu (80
 megs! Wow!) 2.5 inch IDE drive...never had a problem out of it...
 
 Still rather use it than use a Win-box grin
 
 -- 
 
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\/ 
 



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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread Lyvim Xaphir

On Sun, 2002-05-19 at 23:10, Sridhar Dhanapalan wrote:

 Fujitsu has sold its desktop HDD business to WD. I'm not sure about Hitachi for
 desktop drives yet (although they're great in the enterprise arena) -- I would
 like to wait and see how this 'joint venture' with IBM pans out.

This might lead some to glean that Fujitsu hard drives cannot be had; it
probably needs to be said that this is not the case.  Only a portion of
Fujitsu's manufacturing assets were sold.  URL here:

http://pr.fujitsu.com/en/news/2001/12/21.html

  Fujitsu is still in the hard drive business per se; their drives can
still be had thru the big distribution channels, like 3d Micro or Tech
Data.  If you happen to be a reseller, you can contact the distro
channels to purchase one, or if you are an end user you can contact a
reseller, like newegg:

http://www.newegg.com/app/ViewProduct.asp?submit=manufactorycatalog=15manufactory=1540DEPA=1

LX


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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread civileme

Lyvim Xaphir wrote:

On Sun, 2002-05-19 at 20:53, civileme wrote:

Looks like you lobbed a grenade into this thread, Civ.  ;)

Make that two grenades; I forgot about the other post  lol.

I've got a question at the end.


Actually, we are talking about data rates very differently

From/To the attached electronics and disk, the data is _pure serial_

Under any one head there iare
258048 bits  of usable data in a rotation...  And this rotation occurs 
in 1/7200th of a second or about .139 ms, so if an entire track is read, 
we have

about 1.86 GBITS/s (that's Gigabits/sec using 10^9)  or 1.73Gbits/sec 
(using 2^30)

Now the controller is capable of passing data at what?  How is that 
rated?  Is it bytes/sec, words/sec. bits/sec, or just a clock rate that 
is advertised?  The advertising is usually careful NOT to say.  In fact 
it appears to be a clock rate.

Now we have to look at the pcide bus The AT Attachment with Packet 
Interface Revision 6 Draft says there are 16 data bits.  What does that 
mean in raw bit rate?

Hmmm lessee, there are many sorts of messages crossing that bus, not all 
of them data, and to every 512 bytes there is appended a 57-byte CRC 
packet so let's agree to knock off about 10% for necessary cruft to 
preserve data integrity--it's a little higher than that but so what?

133MHz (ATAPI-6) less 14Mhz is 119MHzx16bits =1.9GBITS/sec or 1.77Gbits/sec

WHOA  Until we have 1rpm disks for IDE it looks like we can 
transfer data a little faster than it can spin on or off the disk

But that's OK we can build up the data for a burst in an onboard buffer 
or seven so that many tasks can be happening apparently simultaneously

Now the PCI bus is 32 and the extended PCI bus is 64 bits wide

Hmmm  the IDE channel is only 16 bits wide so to use the PCI bus to 
capacity, we need 4 times the clock rate or 4x33 or 132.

Sheesh, seems we are at the max that can work with an essentially 
unbuffered transfer from memory to disk...  but of course the buffering 
is already there for the next of the components that advertises a speed 
increase.

Now look as the fractional nanosecond values of signals for spooling 
data and recall that once a cylinder boundary is reached (at 63K for 
single-platter two head disks) we have to talk about stepping the heads, 
and now we are talking milliseconds, a 10^6 order of magnitude change in 
data rate.  That is why a buffer on the disk electronics is a great idea.

The disk is the slowest component. RAID0, RAID4 or RAID5 can make a real 
difference in the apparent performance of disk transfers by making 
stepping a less frequent event (with the right chunk size defined, of 
course.).

Civileme


I'm curious as to wether you have any recommendations for chunk sizes. 
Here's what I've got set up now:

raiddev   /dev/md0
raid-level1
chunk-size32k
persistent-superblock 1

nr-raid-disks 2
device/dev/hde5
raid-disk 0
device/dev/hdg5
raid-disk 1
raiddev   /dev/md1
raid-level0
chunk-size32k
persistent-superblock 1
___

I've got two identical IBM deskstars in place, with the prefetch set at
4k:
___

[root@tamriel elx]# hdparm -a /dev/hde

/dev/hde:
 readahead=  8 (on)
___

Hdparm gives the following information:


[root@tamriel elx]# hdparm -i /dev/hde

/dev/hde:

 Model=IBM-DTLA-307030, FwRev=TX4OA60A, SerialNo=YKEYKTYJ069
 Config={ HardSect NotMFM HdSw15uSec Fixed DTR10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
 BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=60036480
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4
 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
 AdvancedPM=yes: disabled (255)
 Drive Supports : ATA/ATAPI-5 T13 1321D revision 1 : ATA-2 ATA-3 ATA-4
ATA-5
_

The question I have for you is, could I better optimize the system with
chunk sizes other than 32k?

Thanks,

LX




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remember we have a 63 sector track with 512 byte sectors  31.5k  

and we usually have two of them  31.5+31.5 =63k

So 64k chunk is a bad idea if you have single-platter drives--every 
chunk represents a head step before a drive switch.

And 32 k chunk means drives switch once before the head steps-cutting 
stepping events in half, and they are more than 90% of the time spent by 
drives in accessing.

Hmmm 21k sounds even better, cause you switch switch switch switch 
switch switch then a read makes the heads step...  This could destroy 
threading of drive requests though.

I think 32 is a good starting number, 

Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread Ashley Reynolds

On Sun, 19 May 2002, Sridhar Dhanapalan wrote:

 I've been looking at the hard drive scene over the last few months in
 preparation for purchasing a new system. I've got most of the hardware details
 sorted out, but there is one area that I'm not quite settled on: hard drives. I
 am basically looking for an affordable 80GB IDE drive that can deliver fast and
 reliable (i.e. able to run 24x7) performance. I want to buy two of them so I can
 make a RAID0 out of them.

 Of course, they need to play well with Linux, and with any other 'alternate'
 OS/kernel I throw at it. From what I have read, that rules out Western Digital.
 Since I prize reliability, that would rule out IBM (IBM is offloading their hard
 drive business to Hitachi, so that's another minus for them). So the way I see
 it, only Seagate and Maxtor are still in the race. I checked out
 storagereview.com and the Maxtor DiamondMax Plus D740X (AKA 'Viper') 80GB
 appears to be neck-and-neck with the Seagate Barracuda ATA IV 80GB.

 Any thoughts, people? Thx.

Hi Sridhar,

I'm surprised that no-one has recommended Seagate drives yet!   They are
what I use in _all_ of my machines, and all of my customer's machines.  I
have never had any problems with them, at all.  Aside from that fact,
they're dirt cheap at the moment.  Well, in Australia at least.

Ashley

--
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[EMAIL PROTECTED]





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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread Chuck Lalli

On Tuesday 21 May 2002 12:09 am, dfox wrote:
  Yes...very interested.  Master Jedi Dfox may be interested as well. ;)

 Yeah, it might prove interesting. I've heard people network to them and
 control them from Linux. I wouldn't be suprised to see a regular PC like
 drive in there. My brother recently took apart a spare Dish Network

My DirecTivo came with a 3.5 in 40G Maxtor drive in it.  My previous 
Dishplayer had a 17 G drive that is now in my kids PC.  I think it is a 
Quantum but cannot remember for sure.




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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread kwan

On Tue, 21 May 2002, Ronald J. Hall wrote:

 Lyvim Xaphir wrote:
 
 
 Was that one of those Atari's that came with pc-compatible slots? And a
 motorola processor, maybe?
 
 LX
 
 It did have a Motorola 68030 CPU... but no PC slots, I'm afraid. Very 
 proprietary hardware but I loved it. I ran Atari computers for 
 years...even ran an Atari based BBS that was very popular here, until 
 the 'Net took things over.

I remember those -- never had one though. My experience with the ST
series was limited to the 520 and 1040. Great machines, and they even
had a unix clone. My first C programs were done on the 520ST using the
Megamax compilers (it was a math graphing application).

 
 Would you like to see a pic of my Atari desktop (offlist, of course). 
 File it under Ripleys Believe it or not, but its running a special 
 version of Unix, well...actually a mix of BSD, Unix and Linux...
 
Can you copy me on a few of these?




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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread Lyvim Xaphir

On Tue, 2002-05-21 at 02:09, James wrote:
 I've generally had good luck with Fujitsu's but did run into an
 interesting problem with a 6 gig version of it.  We bought a lot of 100
 of the drives with a previous company I was with.  In the production
 line the drives had installed on them a whopping 75 megs of FreeBSD and
 our software.  Normally a drive to drive clone took on the order of 30
 minutes (multiple drives on the receive end would slow it down somewhat)
 What we did run into was 2 cases of drives (12 to a case) that were the
 slowest clones I'd ever seen 16 hours to write 75 megs (limited
 production test in our shop run once a problem had been found on the
 line.)  and format the drives.  Once they were finished they ran
 just fine.  As long as you never had to write to them again.  A 100k
 copy from cd to HDD could take 25 to 30 minutes.  Fujitsu sent out a rep
 to look at the problem we had and left us two cases of 10 gig drives for
 our trouble. (The gesture was appreciated but 6 gigs was already
 overkill.) Never did find out why but it seemed to be a bad lot.  
 
 James 

You probably won't believe this, but I had a very similar experience
with those fujitsu laptop drives.  Reading off a drive image was no
problem; but writing it back took an entire night, using dd.  Otherwise
they functioned normally, with no wierdisms.

Anyway, I got the job done and passed the anomaly off as something I'd
never get the answer to.

LX

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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread darklord

On Tuesday 21 May 2002 12:24 am, you wrote:

 Yeah...I'd love to see it!

 What'd you do, patch together a special version of Unix or something?

 LX

I can't take credit for it. A dedicated group of Atarians did it - to the 
benefit of the rest of us... There is still a hardcore group of Atari users 
(just like the Amiga) out there. I have to admit - I still have an old Atari 
that I fire up from time to time...just waxing nostalgic I guess. ;-)

I'll send a couple of JPG's as attachments to your e-mail address. They are 
not very big but you can see what it looked like. :-)

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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread FemmeFatale

Lyvim Xaphir wrote:
 
 On Mon, 2002-05-20 at 23:13, FemmeFatale wrote:
 
  I have a pic of one I can scan that was opened like a can of beans if
  you want it... offlist of course.
 
 
  --
  Femme
 
 Yes...very interested.  Master Jedi Dfox may be interested as well. ;)
 
 Thanks, Femme!
 
 LX

The Article I referred to appeared in the March issue of Maximum PC. 
Its an article on how to hack you TIVO PVR.

I have made it available as a zip file for anyone on this list who
wishes it.  Its on my ftp, which I will leave up for a week 24/7 for
those who wish to access it.  The actual path is the home dir that the
acct has been assigned.

To login simply use any ftp client  Connect to:  142.173.217.236, port
number 21

Login: linux
Password: linux

NOTE: the login/pass IS CASE SENSITIVE.

The file you want is called tivo.zip.  If someone wants just the
scanned files NOT in .zip format pls email me pvtly.  Also in that
directory is a bunch of saved newbie/expert questions  answers from
these lists.  For those interested in MP3's, there is a hidden MP3
directory.  simply access d:\mp3.

For those who care, in the home directory along with tivo.zip is
another file for USB users on how to get it up  running with linux.  If
there is interest I may scan another article for ppl wanting Camera/usb
info too for linux.

You may leech away ladies  gentleman.  The ftp will stay as long as it
is used  for those who dislike sharing music, please take no offense. 
This was simply the fastest  most convenient way to dispense the
scanned article to those who wish it.

Thank You. Please don't Hammer the ftp though!  If its down or screwed
please email me pvtly with your concern/rant/bitch :)



-- 
Femme

Good Decisions You boss Made:

We'll do as you suggest and go with Linux.  I've always liked that
character from Peanuts.

- Source: Dilbert




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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread FemmeFatale

FemmeFatale wrote:

 
 The Article I referred to appeared in the March issue of Maximum PC.
 Its an article on how to hack you TIVO PVR.
 
 I have made it available as a zip file for anyone on this list who
 wishes it.  Its on my ftp, which I will leave up for a week 24/7 for
 those who wish to access it.  The actual path is the home dir that the
 acct has been assigned.
 
 To login simply use any ftp client  Connect to:  142.173.217.236, port
 number 21
 
 Login: linux
 Password: linux
 
 NOTE: the login/pass IS CASE SENSITIVE.
 
 The file you want is called tivo.zip.  If someone wants just the
 scanned files NOT in .zip format pls email me pvtly.  Also in that
 directory is a bunch of saved newbie/expert questions  answers from
 these lists.  For those interested in MP3's, there is a hidden MP3
 directory.  simply access d:\mp3.
 
 For those who care, in the home directory along with tivo.zip is
 another file for USB users on how to get it up  running with linux.  If
 there is interest I may scan another article for ppl wanting Camera/usb
 info too for linux.
 
 You may leech away ladies  gentleman.  The ftp will stay as long as it
 is used  for those who dislike sharing music, please take no offense.
 This was simply the fastest  most convenient way to dispense the
 scanned article to those who wish it.
 
 Thank You. Please don't Hammer the ftp though!  If its down or screwed
 please email me pvtly with your concern/rant/bitch :)
 
 --
 Femme
 

Something I forgot to add was that I limited the bandwith  10KBps per
user.  Maximum of 6 allowed on the ftp at once.  So if you don't get on
the first time please try again :)
-- 
Femme

Good Decisions You boss Made:

We'll do as you suggest and go with Linux.  I've always liked that
character from Peanuts.

- Source: Dilbert




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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread Ashley Reynolds

On Tue, 21 May 2002, darklord wrote:

 I'll send a couple of JPG's as attachments to your e-mail address. They
are
 not very big but you can see what it looked like. :-)

 --
   /\
DarkLord
   \/



Ashley

--
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[EMAIL PROTECTED]





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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread Ashley Reynolds

On Wed, 22 May 2002, Ashley Reynolds wrote:

 On Tue, 21 May 2002, darklord wrote:

  I'll send a couple of JPG's as attachments to your e-mail address. They
 are
  not very big but you can see what it looked like. :-)

I'm sorry, that previous message was supposed to read:

Darklord, could you send them to me too?  [EMAIL PROTECTED]

I must have hit Ctrl+X instead of Ctrl+C.  ;)

Ashley

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[EMAIL PROTECTED]





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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread dfox

 My DirecTivo came with a 3.5 in 40G Maxtor drive in it.  My previous=20
 Dishplayer had a 17 G drive that is now in my kids PC.  I think it is a=20
 Quantum but cannot remember for sure.

ISTR my brother saying they had a couple different models. He also had
a PC quantum drive (6 gig I think) fail fairly early in life. His other
drives are SCSI on the main machine -- he says one of them went south
a while back. I don't recall the details, oh well. 




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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread Lyvim Xaphir

On Wed, 2002-05-22 at 00:07, dfox wrote:
  My DirecTivo came with a 3.5 in 40G Maxtor drive in it.  My previous=20
  Dishplayer had a 17 G drive that is now in my kids PC.  I think it is a=20
  Quantum but cannot remember for sure.
 
 ISTR my brother saying they had a couple different models. He also had
 a PC quantum drive (6 gig I think) fail fairly early in life. His other
 drives are SCSI on the main machine -- he says one of them went south
 a while back. I don't recall the details, oh well. 

Can you get a brand name next time you talk to him?

LX


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Re: [expert] Hard drives: any thoughts?

2002-05-21 Thread dfox

 Can you get a brand name next time you talk to him?

ok will do. I sent him an email just now...

 LX




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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread Lyvim Xaphir

On Mon, 2002-05-20 at 01:40, dfox wrote: 

 Hmm. Any idea what the set-top boxes might use (tivo, dish network, mp3
 players etc.) ? One would seemingly want to have at least as good (if
 not better) reliability because these drives can easily get more usage
 (in terms of writes/rewrites) than the typical desktop or server
 machine. For instance, the drives in embeeded tivo-type devices are 
 routinely re-recording a section of disk with new video as long as there 
 is power to the machine. This is at least true with dish network combo
 digital video recorders/dish tuner boxes.
 
The other day I opened up a store bought system, and was bowled over to
see an oem fujitsu drive inside.  Very interesting.  I don't like
assembly line systems; the custom approach is much better. But this
looked like at least one thing they did right inside that box. 

I also ran into a couple of fujitsu 2.5 form factor drives in a
proprietary kiosk a while back, and I was pleasantly surprised at how
well they integrated into a desktop machine; no wierdisms with
slave/master stuff like with some other laptop drives I've seen. 

But I've never seen the inside of a Tivo...would be interesting to hear
about that!

LX

-- 
°°°
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Registered Linux User #268899 http://counter.li.org/
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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread darklord

On Monday 20 May 2002 09:56 pm, you wrote:

 The other day I opened up a store bought system, and was bowled over to
 see an oem fujitsu drive inside.  Very interesting.  I don't like
 assembly line systems; the custom approach is much better. But this
 looked like at least one thing they did right inside that box.

 I also ran into a couple of fujitsu 2.5 form factor drives in a
 proprietary kiosk a while back, and I was pleasantly surprised at how
 well they integrated into a desktop machine; no wierdisms with
 slave/master stuff like with some other laptop drives I've seen.

 But I've never seen the inside of a Tivo...would be interesting to hear
 about that!

 LX

Can't comment about the Tivo (although I think they look interesting!) but my 
old 1992 Atari Falcon 030 computer used to use a Fujitsu (80 megs! Wow!) 2.5 
inch IDE drive...never had a problem out of it...

Still rather use it than use a Win-box grin

-- 
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  \/



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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread FemmeFatale

Lyvim Xaphir wrote:
 
 On Mon, 2002-05-20 at 01:40, dfox wrote:
 
  Hmm. Any idea what the set-top boxes might use (tivo, dish network, mp3
  players etc.) ? One would seemingly want to have at least as good (if
  not better) reliability because these drives can easily get more usage
  (in terms of writes/rewrites) than the typical desktop or server
  machine. For instance, the drives in embeeded tivo-type devices are
  routinely re-recording a section of disk with new video as long as there
  is power to the machine. This is at least true with dish network combo
  digital video recorders/dish tuner boxes.
 
 The other day I opened up a store bought system, and was bowled over to
 see an oem fujitsu drive inside.  Very interesting.  I don't like
 assembly line systems; the custom approach is much better. But this
 looked like at least one thing they did right inside that box.
 
 I also ran into a couple of fujitsu 2.5 form factor drives in a
 proprietary kiosk a while back, and I was pleasantly surprised at how
 well they integrated into a desktop machine; no wierdisms with
 slave/master stuff like with some other laptop drives I've seen.
 
 But I've never seen the inside of a Tivo...would be interesting to hear
 about that!
 
 LX
 

I have a pic of one I can scan that was opened like a can of beans if
you want it... offlist of course.


-- 
Femme

Good Decisions You boss Made:

We'll do as you suggest and go with Linux.  I've always liked that
character from Peanuts.

- Source: Dilbert




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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread Lyvim Xaphir

On Mon, 2002-05-20 at 22:57, darklord wrote:

 Can't comment about the Tivo (although I think they look interesting!) but my 
 old 1992 Atari Falcon 030 computer used to use a Fujitsu (80 megs! Wow!) 2.5 
 inch IDE drive...never had a problem out of it...
 
 Still rather use it than use a Win-box grin
 

Was that one of those Atari's that came with pc-compatible slots? And a
motorola processor, maybe?

LX

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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread Lyvim Xaphir

On Mon, 2002-05-20 at 23:13, FemmeFatale wrote:

 I have a pic of one I can scan that was opened like a can of beans if
 you want it... offlist of course.
 
 
 -- 
 Femme

Yes...very interested.  Master Jedi Dfox may be interested as well. ;)

Thanks, Femme!

LX


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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread Ronald J. Hall

Lyvim Xaphir wrote:


Was that one of those Atari's that came with pc-compatible slots? And a
motorola processor, maybe?

LX

It did have a Motorola 68030 CPU... but no PC slots, I'm afraid. Very 
proprietary hardware but I loved it. I ran Atari computers for 
years...even ran an Atari based BBS that was very popular here, until 
the 'Net took things over.

Would you like to see a pic of my Atari desktop (offlist, of course). 
File it under Ripleys Believe it or not, but its running a special 
version of Unix, well...actually a mix of BSD, Unix and Linux...





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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread dfox

 Yes...very interested.  Master Jedi Dfox may be interested as well. ;)

Yeah, it might prove interesting. I've heard people network to them and
control them from Linux. I wouldn't be suprised to see a regular PC like
drive in there. My brother recently took apart a spare Dish Network 
controller (similar to Tivo in the digital recording dept) and just added
the drive to his spare computer. I didn't ask him what brand the HD was. He
did notice wierd 'formatting' problems from time to time, but probably that
was software - like frames of the Simpsons coming up during a recording of
wrestling or what have you.

 LX





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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread dfox

 Most of those links (and others) refer to IBM HDD's over 40GB 
 havin problems. I just recently had a 10 month old, IBM 30GB 7200rpm 
 ata/100 2mb drive fail.  My Linux drive ;(  Mechanical problem.  The 

Ouch...

Mine's the same drive, from about Oct 2000. Here's to crossing fingers :).

 Tom BrinkmanCorpus Christi, Texas





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Re: [expert] Hard drives: any thoughts?

2002-05-20 Thread Lyvim Xaphir

On Tue, 2002-05-21 at 00:01, Ronald J. Hall wrote:
 Lyvim Xaphir wrote:
 
 
 Was that one of those Atari's that came with pc-compatible slots? And a
 motorola processor, maybe?
 
 LX
 
 It did have a Motorola 68030 CPU... but no PC slots, I'm afraid. Very 
 proprietary hardware but I loved it. I ran Atari computers for 
 years...even ran an Atari based BBS that was very popular here, until 
 the 'Net took things over.
 
 Would you like to see a pic of my Atari desktop (offlist, of course). 
 File it under Ripleys Believe it or not, but its running a special 
 version of Unix, well...actually a mix of BSD, Unix and Linux...

Yeah...I'd love to see it!

What'd you do, patch together a special version of Unix or something?

LX
 
 

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Charles A Edwards

On Sun, 19 May 2002 15:44:54 +1000
Sridhar Dhanapalan [EMAIL PROTECTED] wrote:

 Have you used any IBM drives made in the past year? Until about a year ago IBM
 drives were renowned for their reliability, and I used to recommend IBM to all
 my friends. Since then, they have suffered reliability problems, and the return
 rate for IBM drives has been high. There was even a class-action lawsuit
 launched against IBM last year, since so many people's drives failed (I think
 this was settled out of court).
 
 IBM have been first to develop and implement all sorts of new technologies,
 including glass platters and that 'pixie dust' stuff. It looks as if they're
 having major teething problems with these new technologies.
 
 There was some controversy a few weeks ago when IBM placed warnings on their new
 drives indicating that they shouldn't be used for more than eight hours per day.
 If that isn't an indication of poor reliability, then I don't know what is.
 
 With all these quality control problems, and IBM's recent financial woes, I am
 not surprised that they have decided to sell their hard drive unit to Hitachi.
 
 

I have a 60GB Deskstar that I got in late Dec.
It is not the 60GXP, which is the drive that IBM had the QC problem with but is based 
on either the 75GXP or the 120GXP, most likely the 120GXP.

As to the 120GXP itself the following is from the WatchDog column of this months 
(June/82) issue of MaximumPC Mag 

IBM got into hot water with consumers when it published a spec sheet with a 
'power-on' rating for its popular 120GXP hard drives.The spec suggested that the hard 
drive could be safely left on for a total of just 333 hours a month. The Dog's 
investigation has discovered that, despite the published 'power-on' spec, IBM designs 
and tests its hard drives to withstand 24 hour-a-day use, and honors such use in its 
warranty. IBM has since redacted its spec sheet to remove the inflammatory power 
rating.

Currently I have 6 systems running 24/7.
Of 15 hds, 9 are IBM Deskstar and 7 are MaxtorPlus.
The drives ages range from 5 years to 6 months.
In that 5 year span I have suffered only 1 hd failure, a Maxtor, which was replaced. 

When in the market for a hd if it is on sale or I want 1 today I get the MaxtorPlus 
retail box (IBM is not available locally). 
If purchasing on the net I go OEM IBM Deskstar.
In my book they both rate as equals in outstanding quality and performance, and with 
the 1 exception I have yet to be disappointed by
either. 



 Charles



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Steve Browne

On 19 May 2002 00:25:02 -0400, you wrote:

On Sat, 2002-05-18 at 22:11, KevinO wrote:
 IBM

I heartily second this.  I set up a web company on IBM's over three
years ago, and they've been running 24/7 ever since.  Last week the
technical director told me it was one of the best things I ever did;
he's sold on the hardware.

The irony is, I recently read that IBM is getting out of the hard
drive business. I don't know if that means selling off that arm, or
stopping production. Anybody know more?

Steve
Stephen B. Browne
[EMAIL PROTECTED]
Veritas odit moras



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Brian Parish

On Sun, 2002-05-19 at 23:50, Tom Brinkman wrote:
 Most of those links (and others) refer to IBM HDD's over 40GB 
 havin problems. I just recently had a 10 month old, IBM 30GB 7200rpm 
 ata/100 2mb drive fail.  My Linux drive ;(  Mechanical problem.  The 
 drive was used 24/7, but after being shutdown for a week while I was 
 out'a town, it wouldn't spin up when I booted the system. System 
 wouldn't even boot with that drive connected. Fortunately I had most 
 of the stuff I needed from that drive backed up to CD's. I replaced 
 it with a Maxtor 40GB. OTOH, my Windoze drive is a several years old 
 IBM 7200rpm, ata/66 13.6GB. Never has a problem . yet ;)
 -- 
 Tom BrinkmanCorpus Christi, Texas

I remember back in it's Y2K - the end is nigh! days, a warning from
some advisory group - maybe Gartner - that drives running 24/7 on
systems being shutdown over the danger period were likely never to
spin up again.  I think it was something about the heads getting stuck
to the platters.  While they kept spinning, or during very short power
downs, everything stayed warm and smooth, but when they got cold...

Anyway - sounds like what happened to you.

Sounds like a good reason for a UPS - well, another good reason.

Brian




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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Nelson Bartley

Question for you guys, why do you dislike WD hard drives?

I've currently got a 20GB 7200 in my server and it runs beautifully.
It's quiet, I've never had a problem with it, and it's plenty fast. I
know of all the IBM hard drive problems, however where are these WD
problems comming from?

NB

On Sun, 2002-05-19 at 10:25, Brian Parish wrote:
 On Sun, 2002-05-19 at 23:50, Tom Brinkman wrote:
  Most of those links (and others) refer to IBM HDD's over 40GB 
  havin problems. I just recently had a 10 month old, IBM 30GB 7200rpm 
  ata/100 2mb drive fail.  My Linux drive ;(  Mechanical problem.  The 
  drive was used 24/7, but after being shutdown for a week while I was 
  out'a town, it wouldn't spin up when I booted the system. System 
  wouldn't even boot with that drive connected. Fortunately I had most 
  of the stuff I needed from that drive backed up to CD's. I replaced 
  it with a Maxtor 40GB. OTOH, my Windoze drive is a several years old 
  IBM 7200rpm, ata/66 13.6GB. Never has a problem . yet ;)
  -- 
  Tom BrinkmanCorpus Christi, Texas
 
 I remember back in it's Y2K - the end is nigh! days, a warning from
 some advisory group - maybe Gartner - that drives running 24/7 on
 systems being shutdown over the danger period were likely never to
 spin up again.  I think it was something about the heads getting stuck
 to the platters.  While they kept spinning, or during very short power
 downs, everything stayed warm and smooth, but when they got cold...
 
 Anyway - sounds like what happened to you.
 
 Sounds like a good reason for a UPS - well, another good reason.
 
 Brian
 
 
 
 

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Sridhar Dhanapalan

On Sun, 19 May 2002 08:50:50 -0500, Tom Brinkman [EMAIL PROTECTED]
wrote:
 On Sunday 19 May 2002 02:51 am, Sridhar Dhanapalan wrote:
 
  I did a quick web search and found a few relevant pages:
 
  http://theregister.co.uk/content/53/24896.html
  http://theregister.co.uk/content/archive/22412.html
  http://news.com.com/2100-1001-866602.html?legacy=cnettag=lh
  http://www.viahardware.com/ibm120gxp.shtm
 
  In my last post I was writing from memory, so some of the details
  were not quite accurate. For example, IBM is only (!) selling 70%
  of its HDD business to Hitachi, and the new business will be a
  Hitachi-IBM joint venture. Also, the recommended maximum usage for
  the new IBM drives is on average 11 hours per day (not eight as I
  had previously mentioned). But the fact remains: if the drives are
  reliable, why would IBM feel the need to do this? No other
  manufacturer does.
 
 Most of those links (and others) refer to IBM HDD's over 40GB 
 havin problems. I just recently had a 10 month old, IBM 30GB 7200rpm 
 ata/100 2mb drive fail.  My Linux drive ;(  Mechanical problem.  The 
 drive was used 24/7, but after being shutdown for a week while I was 
 out'a town, it wouldn't spin up when I booted the system. System 
 wouldn't even boot with that drive connected. Fortunately I had most 
 of the stuff I needed from that drive backed up to CD's. I replaced 
 it with a Maxtor 40GB.

Hardware generally receive the most stress when initially powered on. The sudden
'spike' of electricity (as opposed to the steady stream they receive when
they're running) can just be too much for some devices. It's not uncommon for
servers which had been running flawlessly for ages to fall over after a power
cycle.

 OTOH, my Windoze drive is a several years old 
 IBM 7200rpm, ata/66 13.6GB. Never has a problem . yet ;)

I have two hard drives on my present system. One (the larger and newer one)
holds Mandrake and the other holds Win98 and my Linux swap. The second drive
runs fine in Windows. However, if I try mounting the Windows FAT32 partition in
Linux, my system will freeze after a random interval. The funny thing is that
the Linux swap partition on that same drive poses no such problem.

I think the problem is that manufacturers design and test their drives for
Windows and not for anything else. Linux likes to push hardware hard, and some
cheap quality or out-of-spec devices (e.g. Western Digital drives) don't like
this.

-- 
Sridhar Dhanapalan

Windows 2000, Users Zilch.



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Tom Brinkman

On Sunday 19 May 2002 10:26 am, Nelson Bartley wrote:
 Question for you guys, why do you dislike WD hard drives?

 I've currently got a 20GB 7200 in my server and it runs
 beautifully. It's quiet, I've never had a problem with it, and it's
 plenty fast. I know of all the IBM hard drive problems, however
 where are these WD problems comming from?

 Much the same as the reports of IBM problems in the last year, 
in late '97, early '98, more serious reports of WD problems surfaced. 
WD's RMA rate went sky high, they even had to recall a few models.  
So IME, (I use to use WD's), they haven't been worth buyin since.  
Also, search for Civileme's WD reports on the list archives. Problems 
with Linux support, CRC shortcuts/errors, etc.  IOW's win-hardware.
-- 
Tom BrinkmanCorpus Christi, Texas



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Lyvim Xaphir

On Sun, 2002-05-19 at 12:05, Tom Brinkman wrote:
 
 I've got a APC BakUPS 500, had it for a long time ;p  Normally, 
 just leavin the house for a day or so, I'd leave the system runnin.
 But this last time I was gone for 8 days, so I shut it down.  It's  
 been shutdown that long before. 'Sides, if a HDD can't stand to be 
 off, get 'cold' (room temp), then restart  it's defective IMO. 

I agree totally; and I think the same principle applies to the rest of
the system also.
 
  Also, FWIW, when I called IBM for an RMA, I asked if there were 
 known issues with FS's other than vfat, specifically ResierFS and 
 XFS. The tech didn't even know what I was talkin about, but he went 
 and asked and came back with a 'none known'.
 
...and also FWIW, both the IBM and the Maxtor replacement were/
 are ata/100 7200rpm 2mb buffer IDE drives.  hdparm -t for the IBM was 
 never better than 36mb/sec, often nearer to 30.  The Maxtor 
 consistently gets 40mb/sec.and sells for damn near half what 
 I paid for that IBM just 10 months ago, and it's 10GB bigger.
 -- 
 Tom BrinkmanCorpus Christi, Texas

I'm still a little leery about maxtor reliability.  What's your take on
that?

LX
 

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread darklord

On Saturday 18 May 2002 10:11 pm, you wrote:
 IBM

 I just bought 4 more from : http://www.mwave.com

 I currently have at least a dozen modern IBM HDs spinning 24x7 here.

 I've never had a problem with any of them. They're real fast with or
 without raid. hdparm reported 35MB/s throughput with Mandrake 8.2, 40 GB
 IBM 7200RPM, stock kernel and no hdparm settings. This was with a Tyan 2460
 and dual Athlon MP1600+.

 I have had seagate, maxtor, and western digital drives fail. :-(

Ditto. I've got v8.2 running on a 60 gig/7200rpm IBM Deskstar, and I get that 
same kind of performancein fact, everytime I messed with Hdparm, the 
performance went down - just goes to show, if it ain't broke, don't fix it! 
grin

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread darklord

On Sunday 19 May 2002 03:16 am, you wrote:

 Ugh.  This is not good at all.  And it is true that my information is
 slightly dated; the two IBM Deskstar's I have here are about a year
 old.  Where did you get this information?  Any links?

 LX

No, that certainly would not be good. The question is, LX, did your drives 
have that 8 hours a day warning on them? I know mine certainly didn't. I got 
it from Dirt Cheap Drives...

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread dfox

 been shutdown that long before. 'Sides, if a HDD can't stand to be 
 off, get 'cold' (room temp), then restart  it's defective IMO. 

Well, yeah, that's self-evident :). Besides, most (non-Linux) usage
of the drives feature frequent powerup/shutdown cycles, so that
should be nothing new.

  Also, FWIW, when I called IBM for an RMA, I asked if there were 
 known issues with FS's other than vfat, specifically ResierFS and 

Why should there be? The drive would just access data differently than
if the same data were accessed by Windows.

 consistently gets 40mb/sec.and sells for damn near half what 
 I paid for that IBM just 10 months ago, and it's 10GB bigger.

My 30 meg deskstar (purchased 10/2000) is still humming very nicely.
I haven't managed to fill it up yet :). I have had very little 
success with seagates, but the last seagate I bought was back in around
1991 :(. My older Maxtor drive lasted nearly 7 years before I took it
out - I probably could plug it back in now and it would still work like
it was brand new (ca. 1993 brand new, but wtf). My other drive (1.6 gig
maxtor) is pretty clean, but there have been one or two bad spots on the
drive surface since I got it back in 1996, so right now I'm just using it
for /var.

Everything is reiserfs here, except for /var, which is ext3, because I
couldn't figure out how to use badblocks in conjuction with reiserfs, and
mkreiserfs doesn't seem to have a bad block checking option. 

 Tom BrinkmanCorpus Christi, Texas





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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Lyvim Xaphir

On Sun, 2002-05-19 at 09:15, Steve Browne wrote:
 On 19 May 2002 00:25:02 -0400, you wrote:
 
 On Sat, 2002-05-18 at 22:11, KevinO wrote:
  IBM
 
 I heartily second this.  I set up a web company on IBM's over three
 years ago, and they've been running 24/7 ever since.  Last week the
 technical director told me it was one of the best things I ever did;
 he's sold on the hardware.
 
 The irony is, I recently read that IBM is getting out of the hard
 drive business. I don't know if that means selling off that arm, or
 stopping production. Anybody know more?
 
 Steve
 Stephen B. Browne
 [EMAIL PROTECTED]
 Veritas odit moras


Sridhar read something stating that IBM was selling 70% of it's hard
drive division to Hitachi.  There are more information links in one of
his posts earlier in this thread.

LX




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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Lyvim Xaphir

On Sun, 2002-05-19 at 01:44, Sridhar Dhanapalan wrote:
 Have you used any IBM drives made in the past year? Until about a year ago IBM
 drives were renowned for their reliability, and I used to recommend IBM to all
 my friends. Since then, they have suffered reliability problems, and the return
 rate for IBM drives has been high. There was even a class-action lawsuit
 launched against IBM last year, since so many people's drives failed (I think
 this was settled out of court).
 
 IBM have been first to develop and implement all sorts of new technologies,
 including glass platters and that 'pixie dust' stuff. It looks as if they're
 having major teething problems with these new technologies.
 
 There was some controversy a few weeks ago when IBM placed warnings on their new
 drives indicating that they shouldn't be used for more than eight hours per day.
 If that isn't an indication of poor reliability, then I don't know what is.
 
 With all these quality control problems, and IBM's recent financial woes, I am
 not surprised that they have decided to sell their hard drive unit to Hitachi.
 
 If you're wondering where I get all this stuff, it is The Register
 (http://www.theregister.co.uk).

Therein may lie a problem.  I love the Reg just as much as the next guy,
but if you read too much Reg you can get depressed; it's a very
cynically oriented publication.  The last Mandrake article was evidence
of that to me.

Every company is going to have problems sooner or later.  For a company
with an aboveboard reputation in it's arena, such problems are even more
subject to journalistic overblow than normal.

There still need to be benchmarks and hard data correlated with what the
journalists are saying, and more significantly, what the peeps here on
the expert list are saying about their personal experiences. Asking the
question here was a good step; the data provided here on this thread
will give a context to the negative reports on IBM, IMO.

 For me, IBM was a natural choice until this string of incidents. WD is out of
 the picture, since they don't correctly follow the ATA spec. That leaves Seagate
 and Maxtor.

Not really; that's sort of a mule blinder perspective.  There are more
companies out there; like Fujitsu and Hitachi.

But not Samsung.  ;)

LX

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Lyvim Xaphir

On Sun, 2002-05-19 at 09:06, Charles A Edwards wrote:

 
 I have a 60GB Deskstar that I got in late Dec.
 It is not the 60GXP, which is the drive that IBM had the QC problem
 with but is based on either the 75GXP or the 120GXP, most likely the
 120GXP.
 
 As to the 120GXP itself the following is from the WatchDog column of
 this months (June/82) issue of MaximumPC Mag 
 
 IBM got into hot water with consumers when it published a spec sheet
 with a 'power-on' rating for its popular 120GXP hard drives.The spec
 suggested that the hard drive could be safely left on for a total of
 just 333 hours a month. The Dog's investigation has discovered that,
 despite the published 'power-on' spec, IBM designs and tests its hard
 drives to withstand 24 hour-a-day use, and honors such use in its
 warranty. IBM has since redacted its spec sheet to remove the
 inflammatory power rating.

I remember reading this, but I could not remember the source of the
information; thanks for posting this !
 
 Currently I have 6 systems running 24/7.
 Of 15 hds, 9 are IBM Deskstar and 7 are MaxtorPlus.
 The drives ages range from 5 years to 6 months.
 In that 5 year span I have suffered only 1 hd failure, a Maxtor, which
 was replaced. 

I have owned several maxtors and samsungs, and the worst failures I have
ever experienced have been with samsung drives; this was both IDE and
SCSI versions.  After my last Samsung experience I vowed never to buy
another Samsung again.  The Maxtors were not as reliable as either the
IBM's or the Fujitsu's.  I have two Fujitsu's here that are still
working after 6 years.  If indeed I was forced to make another buying
decision other than IBM (which I'm not totally convinced I need to do
yet), then I believe I would go back to Fujitsu.  I would not go back to
either Seagate, or Western Digital; I don't think that the quality is
there.  Maxtor is still a big maybe.  Before that I'd go with either
Hitachi or Fujitsu.  For now, unless I or someone else really gets
burned, I will probably stick with IBM.

Especially since you reminded me of the Watchdog article in MaximumPC,
Charles.

 When in the market for a hd if it is on sale or I want 1 today I get the
 MaxtorPlus retail box (IBM is not available locally). 
 If purchasing on the net I go OEM IBM Deskstar.
 In my book they both rate as equals in outstanding quality and performance,
 and with the 1 exception I have yet to be disappointed by
 either. 
 
 
 
  Charles


LX

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread civileme

Nelson Bartley wrote:

Question for you guys, why do you dislike WD hard drives?

I've currently got a 20GB 7200 in my server and it runs beautifully.
It's quiet, I've never had a problem with it, and it's plenty fast. I
know of all the IBM hard drive problems, however where are these WD
problems comming from?

NB

OK

Firest of all, WD is made about as cheap as possible.  It has a single 
platter and two heads, which makes the track density about as high as 
the technology will allow.  Other manufactirers tend to use more 
platters and more heads, and sometimes dedicate one head to clocking the 
data on the others.

WD reps have stated unequivocally at several shows that they DO NOT 
support linux at all, only Windows and Solaris.  That tends to indicate 
that there is something seriously out of spec with there stuff since 
they are unwilling to risk broad scrutiny with highly optimized linux 
drivers.  It also suggests that they have submitted their own drivers to 
those op systems which tend to cover deficiencies in hardware.

My experience with WD drives includes a WD200AB which ran on a RedHat 
system at a whopping 1.62Mb/s when set to UDMA66..   I tinkered with the 
settings using hdparm and eventually settled on UDMA33 with a 
performance increase to over 9M/s.

I use a WD64AA to reproduce disk errors and find workarounds for support 
purposes.  It does signal service.  I can always count on it for

Seems like memory missing as install crashes
hda: lost interrupt
0x51 {DriveReadySeekComplete}

Type errors on a randomly occurring basis.  I know if I can tweak the 
chipset and the kernel to manage that drive, I can tell the customer 
what to do to get running, besides swapping out his horrid disks.

WD has an extended track record of failures and bad drives.  I once 
called them about a faulty drive, and it was the smoothest sales 
experience I EVER had. They obviously do not short their customer 
relations department.  But then that is spending money to do over the 
job that wasn't done properly the first time, and seems to me to be a 
scary mismanagement.  Build it right the first time,,,  An airline tha 
has a VP in charge of lost luggage would scare me just as much.

Now, on to facts about testing by Mr. Linux-ide himself.

http://kt.linuxcare.com/kernel-traffic/kt2214_54.epl#2

Yes, it is not recent, but WD hasn't changed.  They still have odd 
timing and they still have a very bad workaround for leaving out the 
hardware to do 57-byte CRCs and the result is a noise in transmission 
from the computer becomes a permanent error on read-back.  The blow-off 
makes it look like the drive is faster but at the expense of a gamble on 
data integrity.  Anyone around computers for a while knows that if an 
error has nonzero probability, it doesn't matter what the odds against 
it are, it WILL occur, and the probability only tells you how often to 
expect it.  And the hardware/software implementation had better chack 
for it and setup a recovery.  And WD seems to rely on the low 
probability, which is just how Andre Hedrick characterizes it.

And I am still seeing 8 times as many reports of problems with install 
or stability from WD owners as from Seagate owners.  I rarely see any 
from Maxtor owners, and even the slew of reports lately from owners of 
recent IBM disks who are running them 24/7 does not match the continured 
high level of complaints (about our OS) from WD owners.

Civileme










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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Alastair Scott

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On Sunday 19 May 2002 9:26 pm, civileme wrote:

 And I am still seeing 8 times as many reports of problems with
 install or stability from WD owners as from Seagate owners.  I rarely
 see any from Maxtor owners, and even the slew of reports lately from
 owners of recent IBM disks who are running them 24/7 does not match
 the continured high level of complaints (about our OS) from WD
 owners.

This [cheap manufacture and lack of optimisation under Windows] probably 
explains why my 3-year-old WD drive blew with a loud bang a couple of 
weeks after I switched to Linux ;)

I now have an ATA100 7200rpm 40GB IBM which is working wonderfully well.

Alastair
- -- 
Alastair Scott (London, United Kingdom)
http://www.unmetered.org.uk/
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Comment: For info see http://www.gnupg.org

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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Felix Miata

Nelson Bartley wrote:
 
 Question for you guys, why do you dislike WD hard drives?

They are the hardware equivalent of Internet Exploder, designed for
windoze, which means compliance only with WD/M$ standards, not industry
standards. Other drive makers have conformed to the various ATA specs
over the years, while WD has their own EIDE specs, theoretically
compatible with ATA (and also theoretically supersets of ATA specs), but
not in the real world. Ignoring their poorer than average reliability,
[in windoze] they work fine as long as they are the only IDE device on a
channel. Mix them with other brands on the same channel, and their
non-compliance with ATA specs can be trouble.

Example: unless they've changed since last I checked, WD drives have
three different jumper settings, Master, Slave, Single. ATA drives only
have two, Master/Single, and Slave.
-- 
. . . wisdom is more precious than rubies, and nothing you desire can
compare with her.Proverbs 8:11
NIV

 Team OS/2 ** Reg. Linux User #211409

Felix Miata  ***  http://mrmazda.members.atlantic.net/




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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Tom Brinkman

On Sunday 19 May 2002 11:48 am, Lyvim Xaphir wrote:

 I'm still a little leery about maxtor reliability.  What's your
 take on that?

 LX

Can't say, I've only had it a few weeks.  First one too, Maxtor's 
have never been an overclockers favorite.  IBM and Quantum always 
held the crown for 'takes a lickin and keeps on tickin', specially on 
an off spec PCI bus.  Tho I've got a 1.4 Tbird at 1.55, it's all done 
by upping the multiplier, the FSB is up just a touch (135mz) so the 
PCI is in spec (135/4).  PwrSupply is a Sparkle 300w, provides clean 
steady 12v  5 V, Vcore and IO too.  We'll see ;

I think all new drives are a risk, what with the platter density, 
the high rpms, and these gimmicks (ata/100, 133) to get a touch more 
out'a 'em, on the old 33mhz pci bus. Bench's look great, real world 
doesn't reflect it that much. Reliability is sufferin at the expense 
of marketing and price points, all brands of drives. 'Course then 
again, backing up to CDr's is fairly cheap ;
-- 
Tom BrinkmanCorpus Christi, Texas



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread James

On Sun, 19 May 2002 10:07:23 +0200
Wolfgang Bornath [EMAIL PROTECTED] wrote:

 On Sun, May 19, 2002 at 17:51 +1000, Sridhar Dhanapalan wrote:
  
  In my last post I was writing from memory, so some of the details
  were not quite accurate. For example, IBM is only (!) selling 70% of
  its HDD business to Hitachi, and the new business will be a
  Hitachi-IBM joint venture. Also, the recommended maximum usage for
  the new IBM drives is on average 11 hours per day(not eight as I had
  previously mentioned). But the fact remains: if the drives are
  reliable, why would IBM feel the need to do this? No other
  manufacturer does.
 
 Because nobody with extended computing requirements would buy such a
 device. It would not suit my needs because one of my computers runs
 24/7. It's my mail  news server and it also works for a distributed
 computing project during idle time.
 
 Do they say how long the 'recommended' rest between hours of operation
 should be? Another 11 hours?
 
 Ridiculous!

Kind of reminds me of a line from User Friendly when the Marketing Guy
said But down time is good for servers, it gives them a chance to
rest!!!  He was speaking about a product from Washington State when he
said that of course.

 
 wobo
 -- 
 Registered Linux User 228909  Powered By Mandrake Linux 8.1
 -
 Microsoft, Windows, Bugs, Lacking Features, IRQ Conflicts, System 
 Crashes, Non-Functional Multitasking and The Blue Screen of Death 
 (BSOD) are registered trademarks of Microsoft Corp., Redmond, 
 Washington, USA. 
 
 



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread James

On 20 May 2002 00:25:02 +1000
Brian Parish [EMAIL PROTECTED] wrote:

 On Sun, 2002-05-19 at 23:50, Tom Brinkman wrote:
  Most of those links (and others) refer to IBM HDD's over 40GB 
  havin problems. I just recently had a 10 month old, IBM 30GB 7200rpm
  ata/100 2mb drive fail.  My Linux drive ;(  Mechanical problem.  The
  drive was used 24/7, but after being shutdown for a week while I was
  out'a town, it wouldn't spin up when I booted the system. System 
  wouldn't even boot with that drive connected. Fortunately I had most
  of the stuff I needed from that drive backed up to CD's. I replaced 
  it with a Maxtor 40GB. OTOH, my Windoze drive is a several years old
  IBM 7200rpm, ata/66 13.6GB. Never has a problem . yet ;)
  -- 
  Tom BrinkmanCorpus Christi, Texas
 
 I remember back in it's Y2K - the end is nigh! days, a warning from
 some advisory group - maybe Gartner - that drives running 24/7 on
 systems being shutdown over the danger period were likely never to
 spin up again.  I think it was something about the heads getting stuck
 to the platters.  While they kept spinning, or during very short power
 downs, everything stayed warm and smooth, but when they got cold...
 
 Anyway - sounds like what happened to you.
 
 Sounds like a good reason for a UPS - well, another good reason.

Remembering back to the days when HDD's were measured in pounds. I could
suggest this as a probability.  We had some old AMPeg (yes AMPeg) HDD's
about 50 meg I believe that had trouble spinning up if you ever shut
them down.  When they were new, no problem.  But over time the motor
that spun the platten lost tourque.  So it had a lot of trouble starting
the platten to spin.  Once it did it would run forever.  So this system
was the only system on site that was allowed to run 24/7 and the only
computer that was on the full backup system for power (battery,
genarator and additional methods) I'd be inclined to believe that it was
a motor failure probably caused by heat not a case of heads attaching
themselves to a platten.

James

 
 Brian
 
 
 



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread James

I think the 33mhz bus is the root cause of a lot of problems.  Video has
improved not because of faster cpu's but because so much of what used to
travel on the buss is now done on the card. My hdd may be able to read
faster than ever before but it sure doesn't help when even at 66mhz it
exceeded buss speed. Your box performs at the slowest speed on the chain
and if that's 33mhz  that's the choke point.. course all this is
IMHO but I think I'm in the ballpark.

James


On Sun, 19 May 2002 17:41:55 -0500
Tom Brinkman [EMAIL PROTECTED] wrote:

 On Sunday 19 May 2002 11:48 am, Lyvim Xaphir wrote:
 
  I'm still a little leery about maxtor reliability.  What's your
  take on that?
 
  LX
 
 Can't say, I've only had it a few weeks.  First one too, Maxtor's 
 have never been an overclockers favorite.  IBM and Quantum always 
 held the crown for 'takes a lickin and keeps on tickin', specially on 
 an off spec PCI bus.  Tho I've got a 1.4 Tbird at 1.55, it's all done 
 by upping the multiplier, the FSB is up just a touch (135mz) so the 
 PCI is in spec (135/4).  PwrSupply is a Sparkle 300w, provides clean 
 steady 12v  5 V, Vcore and IO too.  We'll see ;
 
 I think all new drives are a risk, what with the platter density, 
 the high rpms, and these gimmicks (ata/100, 133) to get a touch more 
 out'a 'em, on the old 33mhz pci bus. Bench's look great, real world 
 doesn't reflect it that much. Reliability is sufferin at the expense 
 of marketing and price points, all brands of drives. 'Course then 
 again, backing up to CDr's is fairly cheap ;
 -- 
 Tom BrinkmanCorpus Christi, Texas
 
 



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread James

Charles I've got a 1993 vintage Samsung that's still running strong ...
It runs 24/7 and was shipped in the comp from Korea to the US.  The
story seems to be over all. 

Don't buy WD

Quantum and Fijutsu . the jury is still out.

Take your chances on the rest someone is bound to get a bad one. 
Question is. will they replace it?

James



On 19 May 2002 12:57:58 -0400
Lyvim Xaphir [EMAIL PROTECTED] wrote:

 On Sun, 2002-05-19 at 09:06, Charles A Edwards wrote:
 
  
  I have a 60GB Deskstar that I got in late Dec.
  It is not the 60GXP, which is the drive that IBM had the QC problem
  with but is based on either the 75GXP or the 120GXP, most likely the
  120GXP.
  
  As to the 120GXP itself the following is from the WatchDog column of
  this months (June/82) issue of MaximumPC Mag 
  
  IBM got into hot water with consumers when it published a spec
  sheet with a 'power-on' rating for its popular 120GXP hard
  drives.The spec suggested that the hard drive could be safely left
  on for a total of just 333 hours a month. The Dog's investigation
  has discovered that, despite the published 'power-on' spec, IBM
  designs and tests its hard drives to withstand 24 hour-a-day use,
  and honors such use in its warranty. IBM has since redacted its spec
  sheet to remove the inflammatory power rating.
 
 I remember reading this, but I could not remember the source of the
 information; thanks for posting this !
  
  Currently I have 6 systems running 24/7.
  Of 15 hds, 9 are IBM Deskstar and 7 are MaxtorPlus.
  The drives ages range from 5 years to 6 months.
  In that 5 year span I have suffered only 1 hd failure, a Maxtor,
  which was replaced. 
 
 I have owned several maxtors and samsungs, and the worst failures I
 have ever experienced have been with samsung drives; this was both IDE
 and SCSI versions.  After my last Samsung experience I vowed never to
 buy another Samsung again.  The Maxtors were not as reliable as either
 the IBM's or the Fujitsu's.  I have two Fujitsu's here that are still
 working after 6 years.  If indeed I was forced to make another buying
 decision other than IBM (which I'm not totally convinced I need to do
 yet), then I believe I would go back to Fujitsu.  I would not go back
 to either Seagate, or Western Digital; I don't think that the quality
 is there.  Maxtor is still a big maybe.  Before that I'd go with
 either Hitachi or Fujitsu.  For now, unless I or someone else really
 gets burned, I will probably stick with IBM.
 
 Especially since you reminded me of the Watchdog article in MaximumPC,
 Charles.
 
  When in the market for a hd if it is on sale or I want 1 today I get
  the MaxtorPlus retail box (IBM is not available locally). 
  If purchasing on the net I go OEM IBM Deskstar.
  In my book they both rate as equals in outstanding quality and
  performance, and with the 1 exception I have yet to be disappointed
  by either. 
  
  
  
   Charles
 
 
 LX
 
 -- 
 °°°
 Kernel  2.4.8-26mdk Mandrake Linux  8.1
 Enlightenment 0.16.5Evolution  1.02
 Registered Linux User #268899 http://counter.li.org/
 °°°
 
 
 



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread civileme

James wrote:

I think the 33mhz bus is the root cause of a lot of problems.  Video has
improved not because of faster cpu's but because so much of what used to
travel on the buss is now done on the card. My hdd may be able to read
faster than ever before but it sure doesn't help when even at 66mhz it
exceeded buss speed. Your box performs at the slowest speed on the chain
and if that's 33mhz  that's the choke point.. course all this is
IMHO but I think I'm in the ballpark.

James


Actually, we are talking about data rates very differently

From/To the attached electronics and disk, the data is _pure serial_

Under any one head there iare
258048 bits  of usable data in a rotation...  And this rotation occurs 
in 1/7200th of a second or about .139 ms, so if an entire track is read, 
we have

about 1.86 GBITS/s (that's Gigabits/sec using 10^9)  or 1.73Gbits/sec 
(using 2^30)

Now the controller is capable of passing data at what?  How is that 
rated?  Is it bytes/sec, words/sec. bits/sec, or just a clock rate that 
is advertised?  The advertising is usually careful NOT to say.  In fact 
it appears to be a clock rate.

Now we have to look at the pcide bus The AT Attachment with Packet 
Interface Revision 6 Draft says there are 16 data bits.  What does that 
mean in raw bit rate?

Hmmm lessee, there are many sorts of messages crossing that bus, not all 
of them data, and to every 512 bytes there is appended a 57-byte CRC 
packet so let's agree to knock off about 10% for necessary cruft to 
preserve data integrity--it's a little higher than that but so what?

133MHz (ATAPI-6) less 14Mhz is 119MHzx16bits =1.9GBITS/sec or 1.77Gbits/sec

WHOA  Until we have 1rpm disks for IDE it looks like we can 
transfer data a little faster than it can spin on or off the disk

But that's OK we can build up the data for a burst in an onboard buffer 
or seven so that many tasks can be happening apparently simultaneously

Now the PCI bus is 32 and the extended PCI bus is 64 bits wide

Hmmm  the IDE channel is only 16 bits wide so to use the PCI bus to 
capacity, we need 4 times the clock rate or 4x33 or 132.

Sheesh, seems we are at the max that can work with an essentially 
unbuffered transfer from memory to disk...  but of course the buffering 
is already there for the next of the components that advertises a speed 
increase.

Now look as the fractional nanosecond values of signals for spooling 
data and recall that once a cylinder boundary is reached (at 63K for 
single-platter two head disks) we have to talk about stepping the heads, 
and now we are talking milliseconds, a 10^6 order of magnitude change in 
data rate.  That is why a buffer on the disk electronics is a great idea.

The disk is the slowest component. RAID0, RAID4 or RAID5 can make a real 
difference in the apparent performance of disk transfers by making 
stepping a less frequent event (with the right chunk size defined, of 
course.).

Civileme







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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread civileme

civileme wrote:

 James wrote:

 I think the 33mhz bus is the root cause of a lot of problems.  Video has
 improved not because of faster cpu's but because so much of what used to
 travel on the buss is now done on the card. My hdd may be able to read
 faster than ever before but it sure doesn't help when even at 66mhz it
 exceeded buss speed. Your box performs at the slowest speed on the chain
 and if that's 33mhz  that's the choke point.. course all this is
 IMHO but I think I'm in the ballpark.

 James


 Actually, we are talking about data rates very differently

 From/To the attached electronics and disk, the data is _pure serial_

 Under any one head there iare
 258048 bits  of usable data in a rotation...  And this rotation occurs 
 in 1/7200th of a second or about .139 ms, so if an entire track is 
 read, we have

 about 1.86 GBITS/s (that's Gigabits/sec using 10^9)  or 1.73Gbits/sec 
 (using 2^30)

 Now the controller is capable of passing data at what?  How is that 
 rated?  Is it bytes/sec, words/sec. bits/sec, or just a clock rate 
 that is advertised?  The advertising is usually careful NOT to say.  
 In fact it appears to be a clock rate.

 Now we have to look at the pcide bus The AT Attachment with Packet 
 Interface Revision 6 Draft says there are 16 data bits.  What does 
 that mean in raw bit rate?

 Hmmm lessee, there are many sorts of messages crossing that bus, not 
 all of them data, and to every 512 bytes there is appended a 57-byte 
 CRC packet so let's agree to knock off about 10% for necessary cruft 
 to preserve data integrity--it's a little higher than that but so what?

 133MHz (ATAPI-6) less 14Mhz is 119MHzx16bits =1.9GBITS/sec or 
 1.77Gbits/sec

 WHOA  Until we have 1rpm disks for IDE it looks like we can 
 transfer data a little faster than it can spin on or off the disk

 But that's OK we can build up the data for a burst in an onboard 
 buffer or seven so that many tasks can be happening apparently 
 simultaneously

 Now the PCI bus is 32 and the extended PCI bus is 64 bits wide

 Hmmm  the IDE channel is only 16 bits wide so to use the PCI bus to 
 capacity, we need 4 times the clock rate or 4x33 or 132.

 Sheesh, seems we are at the max that can work with an essentially 
 unbuffered transfer from memory to disk...  but of course the 
 buffering is already there for the next of the components that 
 advertises a speed increase.

 Now look as the fractional nanosecond values of signals for spooling 
 data and recall that once a cylinder boundary is reached (at 63K for 
 single-platter two head disks) we have to talk about stepping the 
 heads, and now we are talking milliseconds, a 10^6 order of magnitude 
 change in data rate.  That is why a buffer on the disk electronics is 
 a great idea.

 The disk is the slowest component. RAID0, RAID4 or RAID5 can make a 
 real difference in the apparent performance of disk transfers by 
 making stepping a less frequent event (with the right chunk size 
 defined, of course.).

 Civileme








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ACKS divide the disk rate by 60 :-/   That is rpm not rps.  So the disk 
interface is at least 60 times as fast as the disk!!!

Civileme






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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Sridhar Dhanapalan

On 19 May 2002 14:22:46 -0400, Lyvim Xaphir [EMAIL PROTECTED] wrote:
  For me, IBM was a natural choice until this string of incidents. WD is out
  of the picture, since they don't correctly follow the ATA spec. That leaves
  Seagate and Maxtor.
 
 Not really; that's sort of a mule blinder perspective.  There are more
 companies out there; like Fujitsu and Hitachi.

Fujitsu has sold its desktop HDD business to WD. I'm not sure about Hitachi for
desktop drives yet (although they're great in the enterprise arena) -- I would
like to wait and see how this 'joint venture' with IBM pans out.

 But not Samsung.  ;)

Form what I've seen, they're focused on the 'budget' market (OEMs, etc.).

-- 
Sridhar Dhanapalan

I'm not a big believer in revolutions. What people call revolutions in
technology were more of a shift in perception - from big machines to PC's (the
_technology_ just evolved, fairly slowly at that), and from PC's to the
internet. The next revolution is going to be the same thing - not about the
technology itself being revolutionary, but a shift in how you look at it and how
you use it. -- Linus Torvalds



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread Sridhar Dhanapalan

On Sun, 19 May 2002 16:42:04 -0700, James [EMAIL PROTECTED] wrote:
 Charles I've got a 1993 vintage Samsung that's still running strong ...
 It runs 24/7 and was shipped in the comp from Korea to the US.  The
 story seems to be over all. 
 
 Don't buy WD
 
 Quantum and Fijutsu . the jury is still out.

Both of those companies are now out of the picture. Quantum is now owned by
Maxtor. Fujitsu has sold its desktop HDD division (IIRC to Western Digital), and
now focuses entirely on notebook drives.

-- 
Sridhar Dhanapalan

I don't actually follow other operating systems much. I don't compete - I just
worry about making Linux better than itself, not others. -- Linus Torvalds



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread James

On Mon, 20 May 2002 13:03:56 +1000
Sridhar Dhanapalan [EMAIL PROTECTED] wrote:

 On Sun, 19 May 2002 16:42:04 -0700, James [EMAIL PROTECTED]
 wrote: Charles I've got a 1993 vintage Samsung that's still running
 strong ... It runs 24/7 and was shipped in the comp from Korea to the
 US.  The story seems to be over all. 
  
  Don't buy WD
  
  Quantum and Fijutsu . the jury is still out.
 
 Both of those companies are now out of the picture. Quantum is now
 owned by Maxtor. Fujitsu has sold its desktop HDD division (IIRC to
 Western Digital), and now focuses entirely on notebook drives. 

Thought they had but wasn't sure thanks
 
 -- 
 Sridhar Dhanapalan
 
 I don't actually follow other operating systems much. I don't compete
 - I just worry about making Linux better than itself, not others. --
 Linus Torvalds
 
 



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Re: [expert] Hard drives: any thoughts?

2002-05-19 Thread dfox

 Form what I've seen, they're focused on the 'budget' market (OEMs, etc.).
 

Hmm. Any idea what the set-top boxes might use (tivo, dish network, mp3
players etc.) ? One would seemingly want to have at least as good (if
not better) reliability because these drives can easily get more usage
(in terms of writes/rewrites) than the typical desktop or server
machine. For instance, the drives in embeeded tivo-type devices are 
routinely re-recording a section of disk with new video as long as there 
is power to the machine. This is at least true with dish network combo
digital video recorders/dish tuner boxes.

 Sridhar Dhanapalan



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Re: [expert] Hard drives: any thoughts?

2002-05-18 Thread KevinO

IBM

I just bought 4 more from : http://www.mwave.com

I currently have at least a dozen modern IBM HDs spinning 24x7 here.

I've never had a problem with any of them. They're real fast with or without 
raid. hdparm reported 35MB/s throughput with Mandrake 8.2, 40 GB IBM 7200RPM, 
stock kernel and no hdparm settings. This was with a Tyan 2460 and dual Athlon 
MP1600+.

I have had seagate, maxtor, and western digital drives fail. :-(


Sridhar Dhanapalan wrote:
 I've been looking at the hard drive scene over the last few months in
 preparation for purchasing a new system. I've got most of the hardware details
 sorted out, but there is one area that I'm not quite settled on: hard drives. I
 am basically looking for an affordable 80GB IDE drive that can deliver fast and
 reliable (i.e. able to run 24x7) performance. I want to buy two of them so I can
 make a RAID0 out of them.
 
 Of course, they need to play well with Linux, and with any other 'alternate'
 OS/kernel I throw at it. From what I have read, that rules out Western Digital.
 Since I prize reliability, that would rule out IBM (IBM is offloading their hard
 drive business to Hitachi, so that's another minus for them). So the way I see
 it, only Seagate and Maxtor are still in the race. I checked out
 storagereview.com and the Maxtor DiamondMax Plus D740X (AKA 'Viper') 80GB
 appears to be neck-and-neck with the Seagate Barracuda ATA IV 80GB.
 
 Any thoughts, people? Thx.
 
 
 
 
 
 Want to buy your Pack or Services from MandrakeSoft? 
 Go to http://www.mandrakestore.com



-- 
Kevin O'Connor

  People will be free to devote themselves to activities that are fun ...

The GNU Manifesto - Copyright (C) 1985, 1993 Free Software Foundation, Inc.




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Re: [expert] Hard drives: any thoughts?

2002-05-18 Thread Kenneth Marcy


Sridhar Dhanapalan [EMAIL PROTECTED]
sent Saturday, May 18, 2002 6:40 PM:

: Any thoughts, people? Thx.

Yes. My thought is that it would be nice to know of a motherboard
chipset that supports Firewire hard drives, and that is supported by a
stable kernel version. If these exist, decisions about which hard drive
to choose for an service life would be easier to make.

No offense intended to the quite cost-effective IDE drives, of course.
I have an 80 GB Maxtor running in the machine that sends this mail.


Ken Marcy




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Re: [expert] Hard drives: any thoughts?

2002-05-18 Thread Lyvim Xaphir

On Sat, 2002-05-18 at 22:11, KevinO wrote:
 IBM

I heartily second this.  I set up a web company on IBM's over three
years ago, and they've been running 24/7 ever since.  Last week the
technical director told me it was one of the best things I ever did;
he's sold on the hardware.

First time I've heard about the Hitachi thing, tho...

 I just bought 4 more from : http://www.mwave.com
 
 I currently have at least a dozen modern IBM HDs spinning 24x7 here.
 
 I've never had a problem with any of them. They're real fast with or without 
 raid. hdparm reported 35MB/s throughput with Mandrake 8.2, 40 GB IBM 7200RPM, 
 stock kernel and no hdparm settings. This was with a Tyan 2460 and dual Athlon 
 MP1600+.
 
 I have had seagate, maxtor, and western digital drives fail. :-(

Againsame experience here.  Not only me, but I think that site
Walnut creek ended up ripping out a bunch of barracudas some years back;
all brand new, because of the failures.  I can't remember what they did,
but it wasn't seagate.

In any case, it's hard to beat IBM's MTBF.  YMMV, of course; but my
personal experience is the same as Kevin O'Connor's.

LX


 
 Sridhar Dhanapalan wrote:
  I've been looking at the hard drive scene over the last few months in
  preparation for purchasing a new system. I've got most of the hardware details
  sorted out, but there is one area that I'm not quite settled on: hard drives. I
  am basically looking for an affordable 80GB IDE drive that can deliver fast and
  reliable (i.e. able to run 24x7) performance. I want to buy two of them so I can
  make a RAID0 out of them.
  
  Of course, they need to play well with Linux, and with any other 'alternate'
  OS/kernel I throw at it. From what I have read, that rules out Western Digital.
  Since I prize reliability, that would rule out IBM (IBM is offloading their hard
  drive business to Hitachi, so that's another minus for them). So the way I see
  it, only Seagate and Maxtor are still in the race. I checked out
  storagereview.com and the Maxtor DiamondMax Plus D740X (AKA 'Viper') 80GB
  appears to be neck-and-neck with the Seagate Barracuda ATA IV 80GB.
  
  Any thoughts, people? Thx.
  

-- 
°°°
Kernel  2.4.8-26mdk Mandrake Linux  8.1
Enlightenment 0.16.5Evolution  1.02
Registered Linux User #268899 http://counter.li.org/
°°°




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Re: [expert] Hard drives: any thoughts?

2002-05-18 Thread Sridhar Dhanapalan

Have you used any IBM drives made in the past year? Until about a year ago IBM
drives were renowned for their reliability, and I used to recommend IBM to all
my friends. Since then, they have suffered reliability problems, and the return
rate for IBM drives has been high. There was even a class-action lawsuit
launched against IBM last year, since so many people's drives failed (I think
this was settled out of court).

IBM have been first to develop and implement all sorts of new technologies,
including glass platters and that 'pixie dust' stuff. It looks as if they're
having major teething problems with these new technologies.

There was some controversy a few weeks ago when IBM placed warnings on their new
drives indicating that they shouldn't be used for more than eight hours per day.
If that isn't an indication of poor reliability, then I don't know what is.

With all these quality control problems, and IBM's recent financial woes, I am
not surprised that they have decided to sell their hard drive unit to Hitachi.

If you're wondering where I get all this stuff, it is The Register
(http://www.theregister.co.uk).

For me, IBM was a natural choice until this string of incidents. WD is out of
the picture, since they don't correctly follow the ATA spec. That leaves Seagate
and Maxtor.


On 19 May 2002 00:25:02 -0400, Lyvim Xaphir [EMAIL PROTECTED] wrote:
 On Sat, 2002-05-18 at 22:11, KevinO wrote:
  IBM
 
 I heartily second this.  I set up a web company on IBM's over three
 years ago, and they've been running 24/7 ever since.  Last week the
 technical director told me it was one of the best things I ever did;
 he's sold on the hardware.
 
 First time I've heard about the Hitachi thing, tho...
 
  I just bought 4 more from : http://www.mwave.com
  
  I currently have at least a dozen modern IBM HDs spinning 24x7 here.
  
  I've never had a problem with any of them. They're real fast with or without
  
  raid. hdparm reported 35MB/s throughput with Mandrake 8.2, 40 GB IBM
  7200RPM, stock kernel and no hdparm settings. This was with a Tyan 2460 and
  dual Athlon MP1600+.
  
  I have had seagate, maxtor, and western digital drives fail. :-(
 
 Againsame experience here.  Not only me, but I think that site
 Walnut creek ended up ripping out a bunch of barracudas some years back;
 all brand new, because of the failures.  I can't remember what they did,
 but it wasn't seagate.
 
 In any case, it's hard to beat IBM's MTBF.  YMMV, of course; but my
 personal experience is the same as Kevin O'Connor's.
 
 LX
 
 
  
  Sridhar Dhanapalan wrote:
   I've been looking at the hard drive scene over the last few months in
   preparation for purchasing a new system. I've got most of the hardware
   details sorted out, but there is one area that I'm not quite settled on:
   hard drives. I am basically looking for an affordable 80GB IDE drive that
   can deliver fast and reliable (i.e. able to run 24x7) performance. I want
   to buy two of them so I can make a RAID0 out of them.
   
   Of course, they need to play well with Linux, and with any other
   'alternate' OS/kernel I throw at it. From what I have read, that rules out
   Western Digital. Since I prize reliability, that would rule out IBM (IBM
   is offloading their hard drive business to Hitachi, so that's another
   minus for them). So the way I see it, only Seagate and Maxtor are still in
   the race. I checked out storagereview.com and the Maxtor DiamondMax Plus
   D740X (AKA 'Viper') 80GB appears to be neck-and-neck with the Seagate
   Barracuda ATA IV 80GB.
   
   Any thoughts, people? Thx.

-- 
Sridhar Dhanapalan

We are Microsoft of Borg.
You will be assimilated.
Resistance is-
  Fatal Exception Error in MSBORG32.DLL



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