Lock Disk and Service Guard

[Faizer Jameel]

Dear All
I have a 2 node cluster. I have created a seperate vg with a 1gb disk as the lock disk.
The cluster is working fine. I can fail teh packages and it works fine.
But when i did a make_tape_recovery I got the following message. Any update on this message.

Backing Up Volume Group /dev/vgsavlock
* /usr/sbin/vgcfgbackup /dev/vgsavlock
vgcfgbackup: Warning: couldn't query physical volume "/dev/dsk/c19t1d1":
The specified path does not correspond to physical volume attached to this volume group
vgcfgbackup: Warning: couldn't query all of the physical volumes.
vgcfgbackup: Volume group not activated

[melvyn burnard · Accepted solution]

can you activate the lock vg on each node using vgchange -a e vgsavlock?

did you do a vgcfgbackup of this vg one both nodes AFTER marking it as a cluster lock vg?
does the lvmtab file on each node reflect the correct physical devcies?

[Steven E. Protter]

Shalom,

strings /etc/lvmtab

Try manually activating the volume group and see if you can.

vgchange -a y vgsavlock

echo $?

If it fails post the error message back here and the repose code in my echo statement.

SEP

[Faizer Jameel]

Hi all
I use a Clarion with power path.
The /etc/lvmtab
/dev/vgsavlock
/dev/dsk/c19t1d1
The vgdisplay command output:
vgdisplay -v /dev/vgsavlock
vgdisplay: Volume group not activated.
vgdisplay: Cannot display volume group "/dev/vgsavlock".

on second node
/dev/vgsavlock
/dev/dsk/c21t1d1

[Shardha]

hi,

if you are facing this problem on second node the most probable cause could be you have not exported the vg on second node.
and if yoiu are facing problem on the primary node, then you check the hdd (may be removed from the storage configuration.

Shardha

[Emil Velez]

if I remember right ignite can only create a configuration and back up files on volume groups that are active on the system.

You should have the lock disk as a disk that is used in a package of your cluster. If the lock disk fails unless you have it actively used and the data mirrored of course you will never know it fails till both systems panic when a failover is necessary under certain circumstances. IF both nodes can communicate with each other the lock disk is not really used unless multiple networks fail.