RE: Question about spun-down USB disk

["Kit Gerrits" <kitgerrits@gmail.com>]

OK, that is odd.
The timer on all my disks report 60 (I assume those are seconds).

I'll keep an eye out for that error and see if I can find out where it came
from.
If it is not the spin-up time, I must have accidentally pulled a (USB)
cable. 
(From what I can see in the logs, I just plugged in a different drive before
the drive failed)


I thank you very much for the hint, it was exactly what I was looking for,
  and I apologoze for my <rant> from earlier on.
  (I assumed it was set to 1 or 5 seconds).


Regards,

Kit Gerrits

-----Original Message-----
From: Stefan Richter [mailto:stefanr@s5r6.in-berlin.de] 
Sent: dinsdag 11 november 2008 19:28
To: Kit Gerrits
Cc: dgilbert@interlog.com; linux-scsi@vger.kernel.org
Subject: Re: Question about spun-down USB disk

Kit Gerrits wrote:
...
> If, for some reason, a program wants to write to a file on there 
> without spinning the drive up in advance, the error pops up.
> Mind you, I haven't had the error in days now.
> 
> All I'm looking for is a way to increase the time the O/S waits for 
> the disk to spin up.

Try the /sys/bus/scsi/devices/*:*:*:*/timeout attribute.

Of course increasing the timeout isn't a particularly sophisticated method
to solve the issue, but simple enough to try.  The default timeout is 30
seconds: linux/drivers/scsi/sd.h::SD_TIMEOUT.  Can an HDD really take longer
than that to receive a request when spun down, spin up, execute the request,
and return status?
--
Stefan Richter
-=====-==--- =-== -=-==
http://arcgraph.de/sr/