SCSI messages - should I be worried?

[Dave Ewart]

On Tuesday, 28.07.2009 at 10:32 +0100, Dave Ewart wrote:

> We have a R905 server with an Powervault MD1120 attached via PERC 6/e
> controller.  It has been working without issue for >6 months.
> 
> Overnight and this morning I see about a dozen instances of the
> following sets of messages:
> 
>     Jul 28 10:02:42 athena Server Administrator: Storage Service EventID:
>     2266  Controller log file entry: Sense key:  0 Sense code:  0 Sense
>     qualifier:  0:  Physical Disk 0:0:16 Controller 2, Connector 0
> 
>     Jul 28 10:02:43 athena Server Administrator: Storage Service EventID:
>     2266  Controller log file entry: PD 19(e0x11/s16) Path 5000c50005cd0e75
>     reset (Type 03):  Physical Disk 0:0:16 Controller 2, Connector 0
> 
>     Jul 28 10:02:44 athena Server Administrator: Storage Service EventID:
>     2095  SCSI sense data Sense key:  6 Sense code: 29 Sense qualifier:  2:
>     Physical Disk 0:0:16 Controller 2, Connector 0
> 
>     Jul 28 10:02:59 athena Server Administrator: Storage Service EventID:
>     2095  SCSI sense data Sense key:  6 Sense code: 29 Sense qualifier: CD:
>     Physical Disk 0:0:16 Controller 2, Connector 0

Grepping my log files, I've now had between 50 and 100 each of the
following messages:

    SCSI sense data Sense key:  2 Sense code:  4 Sense qualifier:  1:
    Physical Disk 0:0:16 Controller 2, Connector 0

    SCSI sense data Sense key:  6 Sense code: 29 Sense qualifier:  2:
    Physical Disk 0:0:16 Controller 2, Connector 0

    SCSI sense data Sense key:  6 Sense code: 29 Sense qualifier: CD:
    Physical Disk 0:0:16 Controller 2, Connector 0

    Controller log file entry: PD 19(e0x11/s16) Path 5000c50005cd0e75  reset
    (Type 03):  Physical Disk 0:0:16 Controller 2, Connector 0

    Controller log file entry: Sense key:  0 Sense code:  0 Sense qualifier:
    0:  Physical Disk 0:0:16 Controller 2, Connector 0

OMSA still marks these as "Status OK" with a big green tick.

I'm tempted to change the disk.  Anyone got any thoughts/comments, here?

On a related note, I'm wondering whether Dell will honour a disk return
in circumstances where the OMSA logging does not actually consider the
disk bad...

Dave.

-- 
Dave Ewart
davee at ceu.ox.ac.uk
Computing Manager, Cancer Epidemiology Unit
University of Oxford / Cancer Research UK
PGP: CC70 1883 BD92 E665 B840 118B 6E94 2CFD 694D E370
Get key from http://www.ceu.ox.ac.uk/~davee/davee-ceu-ox-ac-uk.asc
N 51.7516, W 1.2152
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