Disabling The Cluster Software; Diagnosing And Correcting Problems In A Cluster - Red Hat Cluster for Enterprise Linux 5 Configuration

11. Click the Cluster Management tab and verify that the changes have been propagated to
the cluster members.

5. Disabling the Cluster Software

It may become necessary to temporarily disable the cluster software on a cluster member. For
example, if a cluster member experiences a hardware failure, you may want to reboot that mem-
ber, but prevent it from rejoining the cluster to perform maintenance on the system.
Use the
/sbin/chkconfig
follows:
# chkconfig --level 2345 rgmanager off
# chkconfig --level 2345 gfs off
# chkconfig --level 2345 clvmd off
# chkconfig --level 2345 cman off
Once the problems with the disabled cluster member have been resolved, use the following
commands to allow the member to rejoin the cluster:
# chkconfig --level 2345 rgmanager on
# chkconfig --level 2345 gfs on
# chkconfig --level 2345 clvmd on
# chkconfig --level 2345 cman on
You can then reboot the member for the changes to take effect or run the following commands
in the order shown to restart cluster software:
1.
service cman start
2.
service clvmd start
3. , if you are using Red Hat GFS
service gfs start
4.
service rgmanager start
6. Diagnosing and Correcting Problems in a
Cluster
For information about diagnosing and correcting problems in a cluster, contact an authorized
Red Hat support representative.
5. Disabling the Cluster Software
command to stop the member from joining the cluster at boot-up as
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