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 member,
but prevent it from rejoining the cluster to perform maintenance on
the system.
Use the /sbin/chkconfig command to stop
the member from joining the cluster at boot-up as follows:
chkconfig --level 2345 rgmanager off
chkconfig --level 2345 gfs off
chkconfig --level 2345 clvmd off
chkconfig --level 2345 fenced off
chkconfig --level 2345 lock_gulmd off
chkconfig --level 2345 cman off
chkconfig --level 2345 ccsd 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 fenced on
chkconfig --level 2345 lock_gulmd on
chkconfig --level 2345 cman on
chkconfig --level 2345 ccsd 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:
-
service ccsd start
-
service lock_gulmd start or service cman start according to the type of lock
manager used
-
service fenced start
-
service clvmd start
-
service gfs start, if you are using Red
Hat GFS
-
service rgmanager start
