[ILUG] stress-testing scsi discs

[Andrew Kemmy]

On Tue, 10 Sep 2002, Andrew Kemmy wrote:

> Hi,
> I have a system with the following disk subsystem :

> #lspci 
> 00:10.0 SCSI storage controller: Advanced System Products, Inc
> ABP940-U/ ABP960-U (rev 03)
> #dmesg 
> scsi0 : AdvanSys SCSI 3.3G: PCI Ultra: IO 0xE800-0xE80F, IRQ 0xA
>   Vendor: SEAGATE   Model: ST39140N          Rev: 1498
>   Type:   Direct-Access                      ANSI SCSI revision: 02
> Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
> SCSI device sda: 17783240 512-byte hdwr sectors (9105 MB)

> Sep 9 14:56:11 cel333 kernel: advansys: advansys_reset: board 0: SCSI
> bus reset started...
> Sep  9 14:56:11 cel333 kernel: advansys: advansys_reset: board 0: SCSI
> bus reset successful.
> 
> I then ran the bonnie++ benchmarks continuously for about 3 hours
> without any errors, whereupon the box again mysteriously got wedged,
> responding to pings but not ssh.
> 
> Any suggestions for trying to track down the error ? 
> Reformat (possibly low-level) the disc.
> Check termination.



Thanks to all who responded to this.

For what it's worth Seagate have diagnostic tools for Linux 

http://download.seagate.com/seatools/registration.nsf/eula/linux_java
brings one to the EULA page to proceed to download.

The drive passed multiple scans of this tool, which means I probably
can't return it, even though it is under warranty.

I checked termination, reformatted with the check for bad blocks option,
then ran badblocks, which found two bad blocks. However *many* multiple
runs of badblocks since reports the drive as error-free. I've relegated
it to my "spares" bin for the time being.

Regards,

Andrew.
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