topic Re: cluster aware volume groups in Operating System - HP-UX

cluster aware volume groups

Jeff Hall - TX — Thu, 02 Nov 2006 13:52:28 GMT

Hi all,

Forgive me for the newbie question, but I need some help.

I am building a 4-node Service Guard cluster. Currently the volume groups are mounted via the fstab and are not cluster aware. I have done the following to try to make them cluster aware:

vgchange -a n data1vg
vgchange -c y data1vg

The "vgchange -c y" gives me the following error:
vgchange: Cluster Services not available or unreachable on this system, for volume group "/dev/data1vg".

How can I get past this error? Does the cluster have to be running when I issue this command?

Thanks!
Jeff

Re: cluster aware volume groups

Sanjay Yugal Kishore Ha — Thu, 02 Nov 2006 14:37:59 GMT

Hello Jeff,

Check this thread for your answer:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1072708

Another sysadmin had faced a similar problem.

Cheers!
Sanjay

Re: cluster aware volume groups

Bill Costigan — Thu, 02 Nov 2006 15:34:34 GMT

You do not have to use the vgchange command to make them cluster aware. If the VGs are listed in the Ascii cluster conf file then when you do the cmapplyconf and cmruncl SG will automatically change the VG.

The vgchange -c y/n is used once SG is running and you need to remove a VG form SG to make some change and then put it back.

Re: cluster aware volume groups

Jeff Hall - TX — Thu, 02 Nov 2006 21:51:07 GMT

Thanks to both of you for the responses! You have helped me out tremendously!

Re: cluster aware volume groups

Jeff Hall - TX — Thu, 02 Nov 2006 21:53:52 GMT

Once the volume groups were in the ascii configuration file and I applied that configuration and started the cluster as suggested, everything now works as it should.

Thanks!
Jeff