topic Re: SAN Device problem in Operating System - HP-UX

SAN Device problem

Claude Lanouette_1 — Tue, 10 Jul 2007 12:54:35 GMT

Hi,

Wen i try to format a SAN device i goot this message
# dd if=/dev/zero of=/dev/rdsk/c5t15d6
I/O error
525313+0 records in
525312+1 records out

In SAM
wen i try to configure in SAM a SAN device i goot this message.
The command used to create physical volume alternate links,
/sbin/vgextend, has failed. The stderr output from the command is
shown below. Note that the volume group has been created and will
function normally, although the Logical Volume Manager will not have
the ability to automatically switch to an alternate connection in
case the primary connection should fail.
vgextend: Physical Volume "/dev/dsk/c5t13d3" contains no LVM
This message is for each device.

The problem it is comme fron the SAN?

Tanks.

Claude

Re: SAN Device problem

Steven E. Protter — Tue, 10 Jul 2007 13:02:19 GMT

Shalom,

Yes Claude, I believe the most likely source could be the san. Things to check here include LUN settings and WWN configuration.

Take a look at fcmsutil to see if the link to the san is good.

ioscan -fnC disk

If the disk is newly presented, insf -C disk.

Perhaps start over with pvcreate next and see if the process works more smoothly.

SEP

Re: SAN Device problem

Ivan Ferreira — Tue, 10 Jul 2007 13:19:19 GMT

You where able to write 525312 records to the device, then you had I/O error, maybe because the end of the device was reached.

I'm not sure if the problem comes from the SAN or you just have to do pvcreate as menthioned above.

Re: SAN Device problem

Claude Lanouette_1 — Tue, 10 Jul 2007 14:55:23 GMT

Tank.