On 14 May 2009 at 13:12, Erez Zilber wrote:

> 
> Hi,
> 
> I'm running a setup of open-iscsi & SCST. In order to test error
> scenarios during a WRITE command, I've added a delay in SCST, so after
> it receives the command, it doesn't send an R2T for 20 seconds. I also
> modified the device timeout on the initiator side to 5 seconds.
> However, I don't see an 'abort' for that command. Instead, I see that
> open-iscsi logs in again after 10 seconds and sends the command again.
> SCST also cleans up the session.
> 
> Can anyone explain the reason for this behavior? I would expect that
> scsi-ml on the initiator side will send an 'abort' after 5 seconds.

IMHO 5s for a "target abort" is way too short: If your physical disk has some 
problems (like seek errors, verify error, etc.) it can take very long for a 
write 
to complete. Usually one would prefer to see the data on disk over triggering 
some 
error. I don't know the spects, but I'd guess the suggested timeout is minutes, 
not seconds.

Despite of that the question is how long does the target take to abort the 
command.

Regards,
Ulrich


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