Mirrored root disk failed.

[tamil sevan]

Hi ,

The system running on HPUX 11.0 , its a N4000 class Server.The root disk is mirrored to 9Gb disks.

Problem Desc.
--------------
1/ 1'st disk contain STALE status and 2'nd disk
has no stale.
2/ Tried to execute dd commands which just hanged.

Pls help, how to recover this situation if need to change the 1'st disk.

Rgrds,
Tamil

[Robert-Jan Goossens_1 · Accepted solution]

Hi Tamil,

Replace the failed disk.

Check this doc for the commands.

http://www.unixadm.net/howto/bad_disk.html

Regards,
Robert-Jan

[Keith Bryson]

Hi Tamil

If you do a vgdisplay /dev/vg00, are you showing "PV Status unavailable"?

If so, make a note of the device file (PV Name /dev/dsk/cxtxdx - you'll use it later). Does ioscan -fnC disk show "UNCLAIMED" for the same device?

I usually find it easier to directly lvreduce ALL LVs from that device (e.g. lvreduce /dev/vg00/lvol1 /dev/dsk/cxtxdx) and then do a vgreduce (vgreduce /dev/vg00 /dev/dsk/cxtxdx). You may receive timeouts if LVM can't talk to the disk, but this is expected. Then replace the disk.

Best regards - Keith

[Keith Bryson]

Sorry Tamil

Make that vgdisplay -v /dev/vg00

Keith

[Ravi_8]

Hi

The link given in Robert's post has the solution
http://www.unixadm.net/howto/bad_disk.html

[tamil sevan]

Thanks guy's..