MC/Serviceguard Cluster – Replace Quorum Server

Overview

It is not possible to replace the Quorum Server of a MC/Serviceguard Cluster while the cluster is running.

Get the current cluster configuration

Get the current cluster configuration and save it to an ascii file.

# cmgetconf -v -c cluster1 mycluster.ascii


Edit the config

Edit the config dump.

# vi mycluster.ascii

QS_HOST myquorum-server
QS_POLLING_INTERVAL 1200000000


Stop the Cluster

Stop all packages on the cluster.

# cmhaltpkg -v [pkg_1] [pkg_2]

Stop the whole cluster.

# cmhaltcl -v


Apply the new config

Check and apply the new configuration.

# cmcheckconf -v -C mycluster.ascii
# cmapplyconf -v -C mycluster.ascii


Start the Cluster


# cmruncl -v


Check Cluster

Check if the cluster uses the new Quorum server.

# cmviewcl –v
.
.
Quorum_Server_Status:
NAME STATUS STATE
myquorum-server up running
.
.