topic Re: vgcreate failure in Operating System - HP-UX

vgcreate failure

JOHN TURNER_2 — Fri, 21 Apr 2006 05:56:05 GMT

hello all

im having trouble trying to create a volume group off a disk, Im not sure whether it could be a disk, fibre card, or an array problem.

Im trying to create a volume group on a disk in a DS2405 disk array. I can initialise the disk using pvcreate but when i run a vgcreate i get the following error:

vgcreate: Physical Volume "/dev/dsk/c4t11d0" contains no LVM information

I have also checked the logged files and it appears to be showing the following entry

Apr 16 10:15:42 testbed EMS [1474]: ------ EMS Event Notification ------ Value: "CRITICAL (5)" for Resource: "/storage/even
ts/disks/default/0_1_3_0.8.0.255.2.10.0" (Threshold: >= " 3") Execute the following command to obtain event details:
/opt/resmon/bin/resdata -R 96600070 -r /storage/events/disks/default/0_1_3_0.8.0.255.2.10.0 -n 96600065 -a
Apr 16 10:19:04 testbed EMS [1474]: ------ EMS Event Notification ------ Value: "CRITICAL (5)" for Resource: "/storage/even
ts/disks/default/0_1_3_0.8.0.255.2.11.0" (Threshold: >= " 3") Execute the following command to obtain event details:
/opt/resmon/bin/resdata -R 96600075 -r /storage/events/disks/default/0_1_3_0.8.0.255.2.11.0 -n 96600066 -a

when i ran the optmon command it reported the following

Event Time: sat Apr 15
Severity: CRITICAL
Monitor: disk_em
Event#: 17

Summary: disk at hw path 0/1/3/0.8.0.255.2.14.0: IO request failed

The hardware responded to the initial query but then stopped responding to more requests from the driver. The IO request was not completed

Can anyone shed any light on the situation

Cheers

John

Re: vgcreate failure

Senthil Kumar .A_1 — Fri, 21 Apr 2006 06:13:57 GMT

Hi John,

First check the output of the following command..

#diskinfo /dev/rdsk/c4t11d0

If the "size:" shows 0 bytes, then you will encounter the above problem.

Check "Josiah Henline" answer in the below thread for the reason..

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1006586

Regards,
Senthil Kumar .A

Re: vgcreate failure

Torsten. — Fri, 21 Apr 2006 06:14:26 GMT

Your disk seams to be gone.

Try to read the rdsk device with "dd"

# dd if =/dev/rdsk/c4t11d0 of=/dev/null

If you get an I/O error, you have a bad disk.

Re: vgcreate failure

JOHN TURNER_2 — Fri, 21 Apr 2006 07:19:14 GMT

thanks for the replies, just one more thing before i decide that the disks are faulty, the blocksize is set to 520kb, and the overall disk size is 28000000kb. This is shown when i perform a diskinfo, however the disk is only 146gb.

Is there a way to change the disk sector size

cheers

John

Re: vgcreate failure

Torsten. — Fri, 21 Apr 2006 07:33:42 GMT

Now I got it!

Your disk is taken from a VA7xx0 array!

The array is using a different block size.
Yes, you can re-format the drive. You need to install CommandView SDM. There is an option to re-format the drive.

You have to tell the whole story ;-))

The software is here:

http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?〈=en&cc=us&pnameOID=443575&taskId=135&prodTypeId=12169&prodSeriesId=64112〈=en&cc=us