Re: USB Drive Reliability

2008-09-07 Thread Jeffrey Goldberg

On Aug 19, 2008, at 9:43 AM, Warren Block wrote:


On Mon, 18 Aug 2008, Jeffrey Goldberg wrote:

I have one system (7.0) which becomes extremely unstable if I have  
a USB drive connected.  I usually get a system crash in 10 to 30  
minutes after mounting the USB drive.  It has never crashed without  
the USB drive attached, and it has never gone for more than three  
days with it attached. [...]


Unfortunately, the crashing system is a small form machine and  
there is no way to put in a different USB controller.  The USB  
drive was for backups, which I now do over the network to the  
machine that is working just fine.


That might indicate a cable problem, even just being too long.  A  
line-powered hub added between a problematic USB card reader and  
computer fixed an unreliable situation here.


Unfortunately that hasn't solved the problem.

Cheers,

-j

--
Jeffrey Goldberghttp://www.goldmark.org/jeff/

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Re: USB Drive Reliability

2008-08-19 Thread Oliver Fromme
Jason C. Wells wrote:
  I am running FreeBSD 6.3.  I have found that attaching and detaching USB 
  drives to my box is unreliable. Is this the experience of other users?

I guess I've been lucky, because I haven't had much of a
problem with various USB storage devices so far.  I haven't
been on FreeBSD 6.x for long, though; I went straight to
7-current a few months before 7.0 was released, then
followed the 7-stable branch.

The only thing that doesn't work is detaching a device
(whether USB or other) while it is still mounted.  This
is supposed to be fixed in 8-current.  (My personal
impression is that 8-current is quite reliable at the
moment, so if you have a spare machine it might be worth
giving it a try.  Be sure to subscribe to the -current
mailing list so you don't miss any important heads up
messages.)

Another thing worth mentioning is that a new USB stack
is under development by Hans Petter Selasky.  I'm not
sure when it will be committed to 8-current, but I think
it's pretty much ready.  It will certainly fix some of
the problems people are seeing with the old USB stack.

Best regards
   Oliver

-- 
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Re: USB Drive Reliability

2008-08-19 Thread Warren Block

On Mon, 18 Aug 2008, Jeffrey Goldberg wrote:

I have one system (7.0) which becomes extremely unstable if I have a USB 
drive connected.  I usually get a system crash in 10 to 30 minutes after 
mounting the USB drive.  It has never crashed without the USB drive attached, 
and it has never gone for more than three days with it attached.  Usually the 
failure is much sooner.  This was with 7.0-RELEASE.  I haven't checked since 
I've moved to 7-STABLE.


I have another system (identical software, different hardware) which is solid 
as a rock with the identical USB drive attached.


Unfortunately, the crashing system is a small form machine and there is no 
way to put in a different USB controller.  The USB drive was for backups, 
which I now do over the network to the machine that is working just fine.


That might indicate a cable problem, even just being too long.  A 
line-powered hub added between a problematic USB card reader and 
computer fixed an unreliable situation here.


-Warren Block * Rapid City, South Dakota USA
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Re: USB Drive Reliability

2008-08-18 Thread matti k
On Sun, 17 Aug 2008 17:36:30 -0700
Jason C. Wells [EMAIL PROTECTED] wrote:

 Wojciech Puchar wrote:
 
  I am running FreeBSD 6.3.  I have found that attaching and
  detaching USB drives to my box is unreliable. Is this the
  experience of other users?
 
  something more precise please?
 
 I realize that this is primarily a tech support forum. I wasn't
 asking for a solution to the problem.  I was asking for other peoples 
 experiences. If the USB support in FreeBSD was spotty according to
 other people, as has been reported, then I plan to not even try to
 work on it more until I install 7.1.
 
 Just for the record:
 
 - crashes the system on attachment
 - crashes the system on detachment
 - the system hangs on attachment but resumes responding if you pull
 the drive
 - installing the drive results in the little blue light coming on
 with dmesg reporting attachment, but attempts to mount fail with
 device not configured or somesuch
 - dataloss on the device that chkdisk in DOS couldn't save
 
 Basically, every possible bad behavior that you could ask from a USB 
 connected drive has happened to me over time as I keep coming back
 and trying USB drives.  That's OK.  I'm not upset.  I'm not
 complaining.  I just want to know what to expect from USB drives in
 FreeBSD.

That sounds familiar, but I guess most USB storage devices are very
similar, so maybe start looking at the USB controller. I know in my
case, installing a PCI USB card with _NEC_ chipset solved all my
problems. Thought it worth mentioning ...

Cheers,
Matti
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Re: USB Drive Reliability

2008-08-18 Thread sergio lenzi
it is the usb chip that does not work ok...
or works only with windows timings

Please use an usb storage brand:  Kingston...
for externals usb drivers, I recomend seagate...

format them with a UFS2 file system

using sysinstall, place a Freebsd partition on it
and format it

this way you can use all the freebsd features, and your system
will never hang...


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Re: USB Drive Reliability

2008-08-18 Thread Jeffrey Goldberg

[mailed and posted]

On Aug 17, 2008, at 7:36 PM, Jason C. Wells wrote:

I realize that this is primarily a tech support forum. I wasn't  
asking for a solution to the problem.  I was asking for other  
peoples experiences. If the USB support in FreeBSD was spotty  
according to other people, as has been reported, then I plan to not  
even try to work on it more until I install 7.1.


Just for the record:

- crashes the system on attachment
- crashes the system on detachment
- the system hangs on attachment but resumes responding if you pull  
the drive
- installing the drive results in the little blue light coming on  
with dmesg reporting attachment, but attempts to mount fail with  
device not configured or somesuch

- dataloss on the device that chkdisk in DOS couldn't save


Dien dobre Jason,

I have one system (7.0) which becomes extremely unstable if I have a  
USB drive connected.  I usually get a system crash in 10 to 30 minutes  
after mounting the USB drive.  It has never crashed without the USB  
drive attached, and it has never gone for more than three days with it  
attached.  Usually the failure is much sooner.  This was with 7.0- 
RELEASE.  I haven't checked since I've moved to 7-STABLE.


I have another system (identical software, different hardware) which  
is solid as a rock with the identical USB drive attached.


Unfortunately, the crashing system is a small form machine and there  
is no way to put in a different USB controller.  The USB drive was for  
backups, which I now do over the network to the machine that is  
working just fine.


Best of luck with this.

-j


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Re: USB Drive Reliability

2008-08-17 Thread Manolis Kiagias

Jason C. Wells wrote:
I am running FreeBSD 6.3.  I have found that attaching and detaching 
USB drives to my box is unreliable. Is this the experience of other 
users?


Regards,
Jason
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What do you mean by unreliable? Please give us more details.
If you unplug it while it is mounted, it will certainly result in a 
kernel panic. As far as FreeBSD is concerned, this is no different than 
opening the box and disconnecting your hard disk while it is running.
Other than that, I have an external USB hard disk attached to my home 
server permanently. It is on all the time, it gets mounted / unmounted 
by scripts once or twice a day. It's been running for about two years, 
and never had any problem with it. I  started using it with FreeBSD 6.x 
and is now on 7.

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Re: USB Drive Reliability

2008-08-17 Thread Wojciech Puchar
I am running FreeBSD 6.3.  I have found that attaching and detaching USB 
drives to my box is unreliable. Is this the experience of other users?

something more precise please?
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Re: USB Drive Reliability

2008-08-17 Thread Jason C. Wells

Wojciech Puchar wrote:

I am running FreeBSD 6.3.  I have found that attaching and detaching 
USB drives to my box is unreliable. Is this the experience of other 
users?



something more precise please?


I realize that this is primarily a tech support forum. I wasn't asking 
for a solution to the problem.  I was asking for other peoples 
experiences. If the USB support in FreeBSD was spotty according to other 
people, as has been reported, then I plan to not even try to work on it 
more until I install 7.1.


Just for the record:

- crashes the system on attachment
- crashes the system on detachment
- the system hangs on attachment but resumes responding if you pull the 
drive
- installing the drive results in the little blue light coming on with 
dmesg reporting attachment, but attempts to mount fail with device not 
configured or somesuch

- dataloss on the device that chkdisk in DOS couldn't save

Basically, every possible bad behavior that you could ask from a USB 
connected drive has happened to me over time as I keep coming back and 
trying USB drives.  That's OK.  I'm not upset.  I'm not complaining.  I 
just want to know what to expect from USB drives in FreeBSD.


BTW, I love Poland!  My family hails from Poland several generations 
ago. I just watched you guys win gold in boat racing.  Robert Kubica is 
my favorite driver. I've also been keeping on eye on Poland in the world 
scene. Don't let the bear get you down. They have no cause to say the 
things they've said recently. I wish your country the best.


Regards,
Jason

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