topic disk error? in Operating System - HP-UX

disk error?

???_185 — Sun, 18 Dec 2005 19:28:54 GMT

this error occur sporadically. I conduct /opt/resmon/bin/resdata -M 1533300606
. the result is like this /storage/events/disks/default/0_0_0_3_0.6.0
/storage/events/disks/default/1_0_0_3_0.6.0

these disks are root disk.
I examine the disk by pvdisplay,mstm..
but I didn't any faults.

Dec 19 07:54:29 stby EMS [12253]: ----- EMS Monitor Restart ----- Title: disk_em Command: /usr/sbin/stm/uut/bin/tools/monitor/disk_em Vendor: Hewlet
t-Packard Company Version: B.01.01 To obtain a list of currently monitored resources, execute the following: /opt/resmon/bin/resdata -M 1533300606

Re: disk error?

Adisuria Wangsadinata_1 — Sun, 18 Dec 2005 19:41:47 GMT

Hi Zungwon,

Try to check with ioscan command, to find out whether the disk with CLAIMED or NOHW status.

# ioscan -nfCdisk

Try also to capture the complete message from /var/opt/resmon/log/event.log (you can post this file also, so we can get a clear picture about the problem on your system).

You can try to use 'dd' command also to check the realibility of the disk :

# dd if=/dev/dsk/cXtYdZ of=/dev/null bs=1024k

NOTE : change cXtYdZ with the appropriate disk device file name.

If you saw the output from 'dd' command above with I/O error, the disk is not good (need to replace).

Here is the good information for your reference :

http://www.docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf

Hope this information can help you.

Cheers,
AW

Re: disk error?

Kent Ostby — Sun, 18 Dec 2005 20:49:55 GMT

You can use the check listed by the user in the previous response.

It looks like what you have there is a situation where disk_em is being restarted, but not related to a drive error.

Re: disk error?

Andrew Merritt_2 — Fri, 23 Dec 2005 06:38:43 GMT

Hi Zungwon,
What version of OnlineDiags do you have? There were some problems in an earlier version that would cause disk_em to restart. If you have a current version with the latest patch that should not be happening.

Also, are the two events happening at the same time - the error for the specified disk and the restart? What events are you getting logged in /var/opt/resmon/log/event.log by disk_em?

Andrew