RE: Random shutdown of disks using sata_mv

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Hi Simon,

We are not experiencing that "FAILED TO
IDENTIFY" error.

Kind regards,
Caspar


> We are investigating a similar type of problem seen on several
of
our
> systems.
> Seemingly at random (though some
systems
seem more susceptible than
> others) we see the ata
link reset and
subsequently there is a FAILED TO
> IDENTIFY
error logged. 
smartctl is unable to get information from the
> drive and a power
cycle of the drive is required to bring it
back on line.
> 
> I would be interested to know if the
ata level errors are similar
to those
> we are seeing.
> 
> 
>
-----Original Message-----
>
From:
linux-ide-owner@xxxxxxxxxxxxxxx
>
[mailto:linux-ide-owner@xxxxxxxxxxxxxxx] On Behalf Of Caspar Smit
> Sent: 01 December 2009 12:16
> To:
linux-ide@xxxxxxxxxxxxxxx
> Subject: Random shutdown of disks
using sata_mv
> 
> 
> 
> Hi,
>

> I'm having a problem where in random one of my disks shuts
> down and is disconnected from the linux kernel. In other words I
have to
> reboot the system or physically unplug/replug the
disk
to get it to work
> again.
> 
> I will
provide my
configuration:
> 
> SuperMicro
>
SC-216 chassis
(24 bay 2,5" disks)
> 24x Seagate
ST9500420AS 500Gb
>
7200 RPM Hard Drives
> 3x
SuperMicro AOC-SAT2-MV8 (SATA
Controller
> using the sata_mv
kernel driver)
> 
>
I use Debian Lenny 5.0 and
> kernel:
linux-image-2.6.30-bpo.2-amd64
>
(2.6.30-8~bpo50+1) from the
> backports repository.
> 
> The symptom is that
after a while of
> operation a
disk is shut down and kicked out of
a RAID set. It doesn't
>
matter if there is load or not on the
system.
> 
>
The logging
> says:
> 
> sd 11:0:0:0: [sdk]
Unhandled error code
> sd 11:0:0:0:
> Result:
hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK
> sd
11:0:0:0:
> end_request: I/O error, dev sdk, sector 0
>

> In this case sdk,
> but it happens to all
disks.
> Then the disk is not readable by the
> system
anymore.
> 
> When I check the disk for errors
>
(badblocks/smart) in another system it doesn't give any
errors.
>
I
> only have this with 2,5"
systems.
> 
> Is
this a sata_mv
> problem? A
disk problem? or anything else?
> I can provide more info if
> needed.
> 
>
Kind regards,
> Caspar
Smit
> 
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