topic Re: disarm cluster in Operating System - HP-UX

disarm cluster

castro_2 — Wed, 22 Dec 2004 14:44:31 GMT

I have Service Guard, I need to disarm cluster to use the system in standalone.
I want to desintall the Service Guard.
What are the steps to do this?

Thanks
Merry Chrismas

Re: disarm cluster

Steven E. Protter — Wed, 22 Dec 2004 15:44:20 GMT

Joke: Point a semi-automatic weapon at the cluster and demand it immediately drop any weapons and put its hands in the air.

cmhaltcl

# halts the entire cluseter

cmhalt node -v

# this will halt individual nodes in the cluster.

SEP

Re: disarm cluster

Brian Vance — Wed, 22 Dec 2004 16:32:15 GMT

First halt the cluster
cmhaltcl
Then run this on the node to be removed
cmhaltnode
Edit the file /etc/rc.config.d/cmcluster and set
AUTOSTART_CMCLD=0

You may then use swremove to remove the MC/Serviceguard software.

Note:
You may need to remove references to the removed node in the remaining cluster nodes.

Re: disarm cluster

Patrick Wallek — Wed, 22 Dec 2004 16:37:44 GMT

You will need to make sure your VGs that were activated by the MC/SG get activated automatically on reboot now. Modify the /etc/lvmrc file and change the line:

AUTO_VG_ACTIVATE=0

to

AUTO_VG_ACTIVATE=1

You will also need to make sure that you add your filesystem that the packages used into /etc/fstab so that they are now mounted automatically when the system boots.

Re: disarm cluster

Sanjay_6 — Wed, 22 Dec 2004 16:37:55 GMT

Hi Castro,

You need to shutdown the cluster first.

cmhaltcl -f would shutdown all the nodes in the cluster. Then delete the cluster info, using cmdeleteconf to delete the cluster info. Then activate the vg manually and mount the filesystems and you are good to go. For future purpose, remove any entry made in /etc/lvmrc for the SG and make new entries in /etc/fstab for the filesystems to be now mounted without a SG package to control their mount.

Hoep this helps.

Regds

Re: disarm cluster

Paul Torp — Thu, 23 Dec 2004 06:45:39 GMT

after u have done what is described by the others:

remember to put the startup/shutdown scripts in the package .cntl files into e.g /sbin/rc3.d (start) /sbin/rc2.d (kill)

and set the filesystemmounting /etc/fstab

-paul