Red Hat Cluster Suite, Manual

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54 Chapter 3. Installing and Configuring Red Hat Cluster Suite Software
5. Start the Red Hat Cluster Suite management GUI. At the Cluster Configuration
Tool
tab, verify that the configuration is correct. At the
Cluster Status Tool
tab
verify that the nodes and services are running as expected.
3.7.3. Deleting a Member from a Cluster
To delete a member from an existing cluster that is currently in operation, follow these
steps:
1. At one of the running nodes (not to be removed), run the Red Hat Cluster Suite man-
agement GUI. At the
Cluster Status Tool
tab, under
Services
, disable or relocate
each service that is running on the node to be deleted.
2. Stop the cluster software on the node to be deleted by running the following com-
mands at that node in this order:
a.
service rgmanager stop
b.
service gfs stop
, if you are using Red Hat GFS
c.
service clvmd stop
d.
service fenced stop
(DLM clusters only)
e.
service lock_gulmd stop
or
service cman stop
according to the
type of lock manager used
f.
service ccsd stop
3. At the Cluster Configuration Tool (on one of the running members), delete the
member as follows:
a. If necessary, click the triangle icon to expand the
Cluster Nodes
property.
b. Select the cluster node to be deleted. At the bottom of the right frame (labeled
Properties
), click the
Delete Node
button.
c. Clicking the
Delete Node
button causes a warning dialog box to be displayed
requesting confirmation of the deletion (Figure 3-9).
Figure 3-9. Confirm Deleting a Member