how to designate a volume group as cluster aware

[PamelaJThrasher]

I am in the process of adding a lock disk to an existing 4 node cluster.

I have created the volume group (called vglock)
I have imported it on all the nodes of the cluster.

I have added the needed lines to the ascii file

This moring I ran the cmcheckconf command and got the following:

cmcheckconf -k -C /home/root/lockdisk_add/ocfs_prod.ascii
Defaulting MAX_CONFIGURED_PACKAGES to 300.
Defaulting MAX_CONFIGURED_PACKAGES to 300.
First cluster lock volume group /dev/vglock cannot be found in the cluster.
First cluster lock volume group /dev/vglock needs to be designated as a cluster aware volume group.
cmcheckconf: Unable to verify cluster file: /home/root/lockdisk_add/ocfs_prod.ascii.

How do I designate vglock as as a cluster aware volume group?

[Ismail Azad · Accepted solution]

Hello pamela J. Thrasher,

The command that is used to mark a volume group as "cluster aware" is....

vgchange -c y vglock.... Just the answer to the subject of your question...

Using LVM, this would allow only "exclusive activation" and hence you will not be able to do a vgchange -a y vglock on both nodes which LVM "historically" allows and still does!!

Regards
Ismail Azad

[nijokj]

vgchange -c y /dev/vglock

[PamelaJThrasher]

I had already done the vgchange -c y vglock. Actually after some additional checking, I found that all I needed to do was add /dev/vglock to the ascii file under the volume group list at the end of the file.

[PamelaJThrasher]

found the answer. see my entry above.