LVM record : I/O error

[MRSG]

Hi experts,
When I try to do pvcreate on some LUNs it comes with an error.

#pvcreate /dev/rdsk/c2t9d0
pvcreate: writing LVM record: I/O error

Has anybody seen this error before.

Thanks very much for you response.
Harry

P.S. this thread has been moved from Disk, Disk Arrays (Legacy) to HP-UX > LVM - HP Forums moderator

[Kevin Tsang_1]

Did you try checking that the LUN is OK by using "diskinfo"?

On a VA7400 Disk Array, it shows the array model number and LUN size:# diskinfo /dev/rdsk/c7t4d1
SCSI describe of /dev/rdsk/c7t4d1:
vendor: HP
product id: A6189A
type: direct access
size: 26214400 Kbytes
bytes per sector: 512

If you have security features with your array, then this LUN may not be opened to the host you are creating the pv on.

[MRSG]

Kevin,

Diskinfo works and comes out with the results too. Also tried pvcreate -f, no luck. Its XP512, but one thing is surprising that the LUNs before and after these 6 LUNs in line work perfectly fine.
Tried DD and od still no luck. Looks like problem is from XP side then. Anyways I have raised a call lets see what happens. But afcourse all ideas and tips welcomed.

Thanks,
Harry.

[Jorge Martínez_1]

Could you attach an ioscan -fn to the message?

I'd like to help you but I need to see your configuration.

Thanks!