Linux-Hardware Digest #361, Volume #14 Sat, 17 Feb 01 12:13:05 EST
Contents:
Re: Plextor PX-40TSi (Milton)
Re: Plextor PX-40TSi (Harry)
Re: Should I abandon SCSI? ("Bodo Mueller")
Re: Should I abandon SCSI? (Ellen Geertsema)
Re: Should I abandon SCSI? ("Folkert Rienstra")
Re: Should I abandon SCSI? ("Folkert Rienstra")
Re: Should I abandon SCSI? ("Folkert Rienstra")
Re: Should I abandon SCSI? ("Folkert Rienstra")
Re: USB modems: which ones work under linux? (Chuck Bridgeland)
Re: 64 meg dimm on Eurone EM-5400V MB (Alan Hebert)
Re: Should I abandon SCSI? (Donovan Rebbechi)
Re: Plextor PX-40TSi (Peter da Silva)
Re: Networking advise ("Fred Schroeder")
Re: IDE RAID5 card (?) (Vincent Fox)
Tekram DC-390U3W isn't recognized at boot ("John Margaglione")
Re: Plextor PX-40TSi (Milton)
Re: Should I abandon SCSI? (John Hagen)
Gateway ALR 7200 sever and Redhat ("Patrick Harris")
Re: SCSI bus hangs up, configuration wrong?: HP ScanJet IIcx, AHA-2940AU, HP C1554A
(See signature for email address)
Re: 64 meg dimm on Eurone EM-5400V MB (Edwin)
----------------------------------------------------------------------------
From: Milton <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.slackware,comp.periphs.scsi,comp.periphs
Subject: Re: Plextor PX-40TSi
Date: Sat, 17 Feb 2001 08:03:44 -0500
On Sat, 17 Feb 2001 10:52:20 +0000, Harry <[EMAIL PROTECTED]> wrote:
>Sorry about the cross-posting, not really sure where this question
>should go....
>
>I've just bought one of these. Beautifully made.
>
>
>In the hand book it says of the "BLOCK" jumper, quite specifically:
>
>"Leave this OFF unless you are working in a UNIX environment"
>
>My questions:
>
>1) Why, and what's this jumper all about? (Questions I think should
>be addressed in the handbook instead of blindly dishing out orders).
It's so the manufacturer can sell the same device for Sun or PC systems
It's 512 for Sun, 2048 for PC.
>2) What if I want to multi-boot my system with various operating
>systems?
Well, I believe any Unixes that run on the i386 platform will use the
regular PC block size.
It's there in case you want to use it with say, Sun hardware.
>3) Will a microsoft installation suffer for being presented with a CD
>player with this jumper in place, or (more importantly to my mind)
>will a UNIX sytem sytem suffer for it not being in place?
I doubt if it would recognise the CDROM.
I believe any UNIX that is ported to i386 hardware will use the same
block size as a regular PC.
--
���������������������������������������������������
Milton B. Hewitt
CAUCE Member - http://www.cauce.org
Proud supporter of the Microsoft Boycott Campaign
http://www.vcnet.com/bms/
���������������������������������������������������
------------------------------
From: Harry <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.slackware,comp.periphs.scsi,comp.periphs
Subject: Re: Plextor PX-40TSi
Date: Sat, 17 Feb 2001 13:27:28 +0000
On Sat, 17 Feb 2001 08:03:44 -0500, Milton <[EMAIL PROTECTED]>
wrote:
>On Sat, 17 Feb 2001 10:52:20 +0000, Harry <[EMAIL PROTECTED]> wrote:
>
>>Sorry about the cross-posting, not really sure where this question
>>should go....
>>
>>I've just bought one of these. Beautifully made.
>>
>>
>>In the hand book it says of the "BLOCK" jumper, quite specifically:
>>
>>"Leave this OFF unless you are working in a UNIX environment"
>>
>>My questions:
>>
>>1) Why, and what's this jumper all about? (Questions I think should
>>be addressed in the handbook instead of blindly dishing out orders).
>
>It's so the manufacturer can sell the same device for Sun or PC systems
>
>It's 512 for Sun, 2048 for PC.
>
>
>>2) What if I want to multi-boot my system with various operating
>>systems?
>
>Well, I believe any Unixes that run on the i386 platform will use the
>regular PC block size.
>It's there in case you want to use it with say, Sun hardware.
>
>>3) Will a microsoft installation suffer for being presented with a CD
>>player with this jumper in place, or (more importantly to my mind)
>>will a UNIX sytem sytem suffer for it not being in place?
>
>I doubt if it would recognise the CDROM.
>
>I believe any UNIX that is ported to i386 hardware will use the same
>block size as a regular PC.
>
Well thanks for the replies, both of which seem to suggest that the
use of this jumper is determined by what hardware you have and not, as
the Plextor handbook suggests, whether you're "working in a UNIX
environment" or not. Presumably Linux doesn't care what block size
your CD uses either?
I also bought a Plextor 12x10x32 CDRW which has the same jumper. Are
there any performance differences between the two settings when either
reading or writing?
Thanks again,
Harry
------------------------------
From: "Bodo Mueller" <[EMAIL PROTECTED]>
Crossposted-To: comp.periphs.scsi
Subject: Re: Should I abandon SCSI?
Date: Sat, 17 Feb 2001 13:56:30 +0100
"Ron Reaugh" <[EMAIL PROTECTED]> schrieb im Newsbeitrag
news:tynj6.10682$[EMAIL PROTECTED]...
>
> Donovan Rebbechi wrote in message ...
> >
> >If you're willing to spend an awful lot of money on performance, then
SCSI
> >is worth considering. It really depends on how important I/O performance
is
> >to you. If you need a lot of reliable storage space, and performance is
not
> >so important,
>
>
> Performance with IDE RAID 0 is tops.
Learn to read, Ron
Donovan spoke of " a lot of reliable storage space, and preformance is not
so important
With that kind of reliability raid 0 is out of the question, regardless if
IDE or SCSI.
and I now of no ide 64 bit pci raid soluotion , therefore all present ide
Raids are limitted by the pci bus to about 80 MB/s.
and the maximum number of IDE Disks ( With internal ide raid solutions) is
so far limited to 8 disks. With small random IOs the mechanics of the disks
is the limiting factor, only to use more disks can increase preformance
here. With SCSI up to 15 disks per channel are possible, controllers have up
to 6 U160 Channels ( ICP-Vortex GDT7x63RN),with multichannel Fibere channel
controllers evn more disks per controllers are necessary.
For sequential applications with an bandwidth of up to 40 MB/s sustained ide
raid soulutions are a viable solutione ( Please remember, that in most
applications the data has to move two times over the PCI bus, first from the
source ( i.e.video grabber cards) to memory and from memory to disk, or from
disk to memory and form memory to VGA Card. Therefore only halve of the PCI
Bandwidth is usable for storage. This is only a limitation of the 33 MHz 32
Bit PCI bus,not a limitation of IDE.
For exessive preformance like one needs in large data bank aplications SCSI
ore fibre channel is still the technology of choice.
>
> > you will get a lot more disk for your dollar with an IDE RAID.
> >If performance (especially asynchronous I/O) is important then SCSI may
be
> >useful.
>
>
> No, EIDE RAID 0 does very well.
He did not exclude IDE, just stated that under these conditions scsi might
be the better choice ;-)
-Bodo
------------------------------
From: [EMAIL PROTECTED] (Ellen Geertsema)
Crossposted-To: comp.periphs.scsi
Subject: Re: Should I abandon SCSI?
Date: Sat, 17 Feb 2001 13:39:54 +0000 (UTC)
Reply-To: [EMAIL PROTECTED]
On Fri, 16 Feb 2001 21:34:27 -0500, jtnews <[EMAIL PROTECTED]> wrote:
>Hey everybody, I got my Adaptec 2940
>to work on my 700Mhz Celeron machine!
>It turns out that although the BIOS with SCSIselect
>didn't install, Linux doesn't really need it
>to work with the Adaptec 2940!
Actually, the SCSI BIOS isn't _supposed_ to install unless you have
bootable devices attached to the controller.
Ellen
--
Ellen Geertsema "All my life I wanted to be someone;
[EMAIL PROTECTED] I guess I should have been more specific."
-- Jane Wagner
------------------------------
Reply-To: "Folkert Rienstra" <[EMAIL PROTECTED]>
From: "Folkert Rienstra" <folkert.rienstra>
Subject: Re: Should I abandon SCSI?
Date: Sat, 17 Feb 2001 12:10:54 +0100
Crossposted-To: comp.periphs.scsi
"Chris Pitzel" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
: ..
: > ?I'm at a crossroads now and I need some opinions
: > ?on whether or not I should abandon SCSI or
: > ?continue to invest in the technology.
: >
: > That's a growing question. The latest rumors are that Plextor will not do
: > its 16X burner in SCSI and IF true then the likely marks the beginning of
: > the end for SCSI on single user workstations.
:
: "the end"? How many workstations do you know of that *don't* come
: equipped with SCSI? I can only think of the Ultra10 at the moment, and
: most buyers of those throw the IDE drive out and buy SCSI drive anyways.
:
: In other words, think before you open your mouth.
To coin a phrase:
"Mr. Pot, meet Mr. Kettle."
------------------------------
Reply-To: "Folkert Rienstra" <[EMAIL PROTECTED]>
From: "Folkert Rienstra" <folkert.rienstra>
Subject: Re: Should I abandon SCSI?
Date: Sat, 17 Feb 2001 12:11:36 +0100
Crossposted-To: comp.periphs.scsi
"Allen Crider" <[EMAIL PROTECTED]> wrote in message
news:96l1lf$l98mq$[EMAIL PROTECTED]...
: jtnews wrote:
:
: > Hey everybody, I got my Adaptec 2940
: > to work on my 700Mhz Celeron machine!
: > It turns out that although the BIOS with SCSIselect
: > didn't install,
Well, it never did anyway, without diskdrives attached.
All what it did was leave the Ctrl-A stub.
: > Linux doesn't really need it
: > to work with the Adaptec 2940! All this time
: > it was working all along. This is great!
: > Now I can use all my legacy devices, and I don't
: > have to purchase a new scanner or Adaptec 29160!
: >
: > Now I can scrap my 90Mhz Pentium machine.
: >
: > Thanks for all your help!
: >
:
: I'm glad SCSI didn't abandon you!
LOL.
:
: > jtnews wrote:
: >
: > > I currently have two SCSI legacy devices,
: > > an Exabyte 8200 SCSI tape drive and an HP Scanjet 3c.
: > > Both of these devices used to work with my old Pentium
: > > 90Mhz machine with an Adaptec 2940. However, the
: > > 90Mhz machine is too slow now and I want to use
: > > a 700Mhz machine. The Adaptec 2940 card will no
: > > longer work in the new system.
:
:
------------------------------
Reply-To: "Folkert Rienstra" <[EMAIL PROTECTED]>
From: "Folkert Rienstra" <folkert.rienstra>
Subject: Re: Should I abandon SCSI?
Date: Sat, 17 Feb 2001 12:16:08 +0100
Crossposted-To: comp.periphs.scsi
"Ron Reaugh" <[EMAIL PROTECTED]> wrote in message
news:uNej6.12717$[EMAIL PROTECTED]...
:
: Chris Pitzel wrote in message <[EMAIL PROTECTED]>...
: >..
: >> ?I'm at a crossroads now and I need some opinions
: >> ?on whether or not I should abandon SCSI or
: >> ?continue to invest in the technology.
: >>
: >> That's a growing question. The latest rumors are that Plextor will not
: >> do its 16X burner in SCSI and IF true then the likely marks the
: >> beginning of the end for SCSI on single user workstations.
: >
: >"the end"? How many workstations do you know of that *don't* come
: >equipped with SCSI?
:
:
: Clueless, most do not.
:
: > I can only think of the Ultra10 at the moment, and >most buyers of
: > those throw the IDE drive out and buy SCSI drive anyways.
:
:
: Nope.
:
: >In other words, think before you open your mouth.
:
:
: You got one thing right in this post, now do it.
To coin a (slightly different) phrase:
'Mr. Kettle, meet Mr. Pot'.
:
:
------------------------------
Reply-To: "Folkert Rienstra" <[EMAIL PROTECTED]>
From: "Folkert Rienstra" <folkert.rienstra>
Subject: Re: Should I abandon SCSI?
Date: Sat, 17 Feb 2001 12:17:10 +0100
Crossposted-To: comp.periphs.scsi
"Bodo Mueller" <[EMAIL PROTECTED]> wrote in message
news:96kb40$lougq$[EMAIL PROTECTED]...
:
: "Ron Reaugh" <[EMAIL PROTECTED]> schrieb im Newsbeitrag
: news:uNej6.12717$[EMAIL PROTECTED]...
: >
: > Chris Pitzel wrote in message <[EMAIL PROTECTED]>...
:
: > > I can only think of the Ultra10 at the moment, and most buyers of
: > > those throw the IDE drive out and buy SCSI drive anyways.
: >
: >
: > Nope.
: >
: Ron, Chris is right in this regard, many users do exchange the IDE drive
: for a SCSI solution.
:
: this is not due to some special SCSI advantage, but because the IDE
: Interface in these suns is lousy ( it can only do PIO, no DMA).
Oh man, Bodo. You just made Chris look bad.
:
: Therefore anyone who needs good HD Preformace on these workstations
: will seriously consider SCSI instead.
:
:
: This does not imply any superiority of SCSI over IDE or IDE over SCSI.
:
: -Bodo
:
:
------------------------------
From: [EMAIL PROTECTED] (Chuck Bridgeland)
Crossposted-To: alt.linux,alt.os.linux.mandrake,alt.os.linux.suse
Subject: Re: USB modems: which ones work under linux?
Date: Sat, 17 Feb 2001 14:22:23 -0000
On Fri, 16 Feb 2001 20:15:51 -0000, Stephen Jarrett-Sprague
<[EMAIL PROTECTED]> wrote:
>I have a computer which doesn't have a serial port or room for a serial card
>to be installed. Serious mistake in hindsight.
As an aside, that wouldn't be one of those "book PC" things, would it?
--
Gun owner, Christian, Libertarian, Linux user.
If you got a problem with that, then it's time for some "diversity training".
chuck bridgeland, chuckbri at mwci dot net
------------------------------
From: Alan Hebert <[EMAIL PROTECTED]>
Crossposted-To: alt.comp.hardware.pc-homebuilt,comp.hardware,intel.motherboards.pentium
Subject: Re: 64 meg dimm on Eurone EM-5400V MB
Date: Sat, 17 Feb 2001 09:30:10 -0500
you shouldn't mix dimms and simms it doesn't always work
------------------------------
From: [EMAIL PROTECTED] (Donovan Rebbechi)
Crossposted-To: comp.periphs.scsi
Subject: Re: Should I abandon SCSI?
Date: 17 Feb 2001 15:32:46 GMT
On Sat, 17 Feb 2001 04:59:05 GMT, Ron Reaugh wrote:
>
>Donovan Rebbechi wrote in message ...
>>If you're willing to spend an awful lot of money on performance, then SCSI
>>is worth considering. It really depends on how important I/O performance is
>>to you. If you need a lot of reliable storage space, and performance is not
>>so important,
>
>Performance with IDE RAID 0 is tops.
RAID 0 is great for high performance desktops, but if you want a
storage solution that's also *reliable*, it's useless. (BTW, shouldn't
RAID 0 be "AID 0" ? THe R doesn't really apply)
>> you will get a lot more disk for your dollar with an IDE RAID.
>>If performance (especially asynchronous I/O) is important then SCSI may be
>>useful.
>
>No, EIDE RAID 0 does very well.
Performance, yes. Reliability, no.
--
Donovan Rebbechi * http://pegasus.rutgers.edu/~elflord/ *
elflord at panix dot com
------------------------------
From: [EMAIL PROTECTED] (Peter da Silva)
Crossposted-To: comp.os.linux.slackware,comp.periphs.scsi,comp.periphs
Subject: Re: Plextor PX-40TSi
Date: 17 Feb 2001 15:58:45 GMT
In article <[EMAIL PROTECTED]>,
Harry <[EMAIL PROTECTED]> wrote:
> Sorry about the cross-posting, not really sure where this question
> should go....
>
> I've just bought one of these. Beautifully made.
Plextor does a good job.
> In the hand book it says of the "BLOCK" jumper, quite specifically:
>
> "Leave this OFF unless you are working in a UNIX environment"
More precisely, you need that jumper in place for Sparcstations to boot
from it: the boot prom requires a 512 byte block like hard disks have,
not the 2k block that CDROMs normally use. If you're putting it in a PC,
don't worry about it.
--
`-_-' In hoc signo hack, Peter da Silva.
'U` "A well-rounded geek should be able to geek about anything."
-- [EMAIL PROTECTED]
Disclaimer: WWFD?
------------------------------
From: "Fred Schroeder" <[EMAIL PROTECTED]>
Subject: Re: Networking advise
Date: Fri, 16 Feb 2001 09:13:58 -0600
Thanks to all of you for your advise and recommendations!
Fred
"Fred Schroeder" <[EMAIL PROTECTED]> wrote in message
news:96h3r3$[EMAIL PROTECTED]...
> Hi,
> I would like to set up a network of about 5 to 6 PCs running windows, all
> hooked up to a Linux server, which would act as a gateway to the internet
> for the other machines. My question is, what hardware will I need for
this,
> all of the machines now have an ethernet card in them; and what brands
> and/or models would you recommend. This is the first network I have ever
> set up, so am not even certain what I need to buy. I am assuming I will
> need a switch and another ethernet card for the server.
> TIA,
> Fred
>
>
------------------------------
From: [EMAIL PROTECTED] (Vincent Fox)
Subject: Re: IDE RAID5 card (?)
Date: 17 Feb 2001 16:12:35 GMT
In <[EMAIL PROTECTED]> [EMAIL PROTECTED] (Donovan Rebbechi)
writes:
*snip*
Current versions of 3Ware's 6000 series IDE RAID cards
support RAID 5. You need the 4 or 8-port version
to do RAID 5 though. See the review of it versus
a Promise card at www.storagereview.com.
Considering how cheap giant IDE drives are, I just
plan to run mine in RAID 1 (mirroring). I don't think
RAID 5 is as vital a thing nowadays with 46+ gig drives
going for $150.
--
"Who needs horror movies when we have Microsoft"?
-- Christine Comaford, PC Week, 27/9/95
------------------------------
From: "John Margaglione" <[EMAIL PROTECTED]>
Subject: Tekram DC-390U3W isn't recognized at boot
Date: Sat, 17 Feb 2001 10:25:25 +0600
Like the title says, I can't get Linux (2.4.1) to recognize that there is
a 390U3W card when the system is booting. Once Linux is booted I can
load the sym53c8xx module, no problem. Temporarily I put the insmod
statement in rc.local. But now I would like to boot my entire system
from SCSI (no IDE drives), and I am getting frustrated.
But I need to recognize the SCSI
card at boot time so that I can make swap partitions on it, not to
mention the fact that I don't like having to insmod the driver myself.
I had an Adaptec 2940UW before, and it recognized the card no problem. I
posted this to comp.periphs.scsi week ago with no responses.
Any thoughts?
Thanks,
John
------------------------------
From: Milton <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.slackware,comp.periphs.scsi,comp.periphs
Subject: Re: Plextor PX-40TSi
Date: Sat, 17 Feb 2001 11:13:33 -0500
On Sat, 17 Feb 2001 13:27:28 +0000, Harry <[EMAIL PROTECTED]> wrote:
>Well thanks for the replies, both of which seem to suggest that the
>use of this jumper is determined by what hardware you have and not, as
>the Plextor handbook suggests, whether you're "working in a UNIX
>environment" or not. Presumably Linux doesn't care what block size
>your CD uses either?
>
>I also bought a Plextor 12x10x32 CDRW which has the same jumper. Are
>there any performance differences between the two settings when either
>reading or writing?
I'm sure you can hunt down the answers at:
http://www.fokus.gmd.de/research/cc/glone/employees/joerg.schilling/private/cdrecord.html
--
���������������������������������������������������
Milton B. Hewitt
CAUCE Member - http://www.cauce.org
Proud supporter of the Microsoft Boycott Campaign
http://www.vcnet.com/bms/
���������������������������������������������������
------------------------------
Date: Sat, 17 Feb 2001 08:22:31 -0800
From: John Hagen <[EMAIL PROTECTED]>
Crossposted-To: comp.periphs.scsi
Subject: Re: Should I abandon SCSI?
Folkert Rienstra wrote:
>
> "Bodo Mueller" <[EMAIL PROTECTED]> wrote in message
>news:96kb40$lougq$[EMAIL PROTECTED]...
> :
> : "Ron Reaugh" <[EMAIL PROTECTED]> schrieb im Newsbeitrag
^^^^^^^^^^
You have invoked He Who Must Not Be Named - bad things will start to
happen now.. :)
--
john hagen ~ [EMAIL PROTECTED]
=================================
------------------------------
From: "Patrick Harris" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,linux.dev.scsi,linux.redhat.install
Subject: Gateway ALR 7200 sever and Redhat
Date: Sat, 17 Feb 2001 17:01:16 GMT
I am looking to build a high reliabilty server and have found a source of
high end MB's
They are surplus gateway ALR 7200 sever boards with dual channel adaptec
7980 + RAID port
www.adc-ast
Has 4000449 Gateway ALR 7200 Server Motherboards $99
w / Digital 21150 PCI-to-PCI Bridge,
Chip set is intel BX
The lengthened slot is a shared PCI/RAIDPort, which will accommodate either
a PCI adapter card or an Adaptec RAIDPort III controller.
Any hope for linux runnig on this with out too much work, it's the Digital
21150 PCI-to-PCI Bridge that concerns me.
------------------------------
From: See signature for email address <[EMAIL PROTECTED]>
Subject: Re: SCSI bus hangs up, configuration wrong?: HP ScanJet IIcx, AHA-2940AU, HP
C1554A
Date: Sat, 17 Feb 2001 17:02:27 GMT
[EMAIL PROTECTED] wrote:
> Nothing helped. What does "No active SCB for reconnecting target" mean?
> What is an SCB? May it have something to do with Interrupts, DMA?
SCB is "SCSI Control Block". There is one SCB for each outstanding SCSI
transaction. "No active SCB for reconnecting target" means the SCB for
the transaction that a target is reconnecting for has been invalidated
due to an abort, SCSI reset or timeout.
==========================================================================
Khalid Aziz
[EMAIL PROTECTED] <http://www.gonehiking.org>
Our old vacuum cleaner had stopped sucking well. So we installed
Windows on it. Now that puppy SUCKS.
==========================================================================
------------------------------
From: [EMAIL PROTECTED] (Edwin)
Crossposted-To: alt.comp.hardware.pc-homebuilt,comp.hardware,intel.motherboards.pentium
Subject: Re: 64 meg dimm on Eurone EM-5400V MB
Date: Sat, 17 Feb 2001 17:07:40 GMT
Reply-To: [EMAIL PROTECTED]
On Sat, 17 Feb 2001 09:30:10 -0500, Alan Hebert <[EMAIL PROTECTED]>
wrote:
>you shouldn't mix dimms and simms it doesn't always work
>
>
>
good point but that is not the problem here, look at the other reply.
------------------------------
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