Which disk in the mirror is having the problems?

Matt Domsch Matt_Domsch at dell.com
Tue Jan 18 16:25:01 CST 2005


On Tue, Jan 18, 2005 at 03:53:19PM +0100, Jonas Bl?berg wrote:
>    Hello!
> 
>    I got some SCSI errors in the messages log on a RedHat server:
> 
>    Jan 18 04:29:56 seprol03 kernel: SCSI disk error : host 1 channel 2 id 0
>    lun 0 return code = 25040005
>    Jan 18 04:29:56 seprol03 kernel:  I/O error: dev 08:12, sector 16
>    Jan 18 04:29:56 seprol03 kernel: SCSI disk error : host 1 channel 2 id 0
>    lun 0 return code = 25040005
>    Jan 18 04:29:56 seprol03 kernel:  I/O error: dev 08:18, sector 32780
> 
>    There are several other SCSI errors in the log but only devices 08:12 and
>    08:18 are shown, and 08:18 are many.
> 
>    So, does "dev 08:12" mean /dev/sda12 and "dev 08:18" mean /dev/sdb2?

No, neither.  It's in hex (go figure).

08:12 is sdb2
08:18 is sdb8


>    brw-rw----    1 root     disk       8,  12 Mar 19  2002 /dev/sda12
>    brw-rw----    1 root     disk       8,  18 Mar 19  2002 /dev/sdb2
> 
>    /dev/sda12 is currently not used. /dev/sdb2 is used very much and it is a
>    raw device, and it is the processes using the raw device which is having
>    severe problems.

Bingo.

-- 
Matt Domsch
Software Architect
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com




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