Thomas Vogt’s IT Blog

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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
.
.

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August 5, 2009 - Posted by | Clustering, HP-UX, Linux, Unix

3 Comments »

  1. Being deeply loved by someone gives you strength, while loving someone deeply gives you courage.

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    Comment by lunaculun | June 9, 2010 | Reply

  2. Hi Thomas,
    Thanks for the information. I did logged the case to HP and the feedback was quorum server reconfiguration can be done ‘online’. But from my finding after performing the reconfiguration, there’s impossible to do it on the fly as told by HP and the steps taken was similar as what you’ve shared here!

    Cheers!

    Comment by Syam | August 15, 2012 | Reply

  3. Tom, The best way fix/replace quorum server is install quorum package on new server and create new alias on DNS with new name.. quick, on line, painless.
    Cheers!
    Rob K.

    Comment by Rob K | August 29, 2012 | Reply


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