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Chapter 4. Cluster Administration
To monitor the cluster and display status at specific time intervals from a shell prompt,
invoke
with the
clustat
between status snapshots. The following example causes the
cluster status every 10 seconds:
#clustat -i 10
4.3. Starting and Stopping the Cluster Software
To start the cluster software on a member, type the following commands in this order:
1.
service ccsd start
2.
service lock_gulmd start
of lock manager used
3.
service fenced start
4.
service clvmd start
5.
service gfs start
6.
service rgmanager start
To stop the cluster software on a member, type the following commands in this order:
1.
service rgmanager stop
2.
service gfs stop
3.
service clvmd stop
4.
service fenced stop
5.
service lock_gulmd stop
lock manager used
6.
service ccsd stop
Stopping the cluster services on a member causes its services to fail over to an active
member.
4.4. Modifying the Cluster Configuration
To
modify
the
(
/etc/cluster/cluster.conf
information about using the Cluster Configuration Tool, refer to Chapter 3 Installing
and Configuring Red Hat Cluster Suite Software.
option, where time specifies the number of seconds
-i time
or
(DLM clusters only)
, if you are using Red Hat GFS
, if you are using Red Hat GFS
(DLM clusters only)
or
service cman stop
cluster
configuration
), use the Cluster Configuration Tool. For more
service cman start
(the
cluster
utility to display
clustat
according to the type
according to the type of
configuration
71
file
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