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Chapter 5. Managing Red Hat Cluster

With system-config-cluster

This chapter describes various administrative tasks for managing a Red Hat Cluster and con-

sists of the following sections:

• Section 1, “Starting and Stopping the Cluster Software”

• Section 2, “Managing High-Availability Services”

• Section 4, “Backing Up and Restoring the Cluster Database”

• Section 5, “Disabling the Cluster Software”

• Section 6, “Diagnosing and Correcting Problems in a Cluster”

1. Starting and Stopping the Cluster Soft-

ware

To start the cluster software on a member, type the following commands in this order:

1. service cman start

2. service clvmd start

3. service gfs start, if you are using Red Hat GFS

4. 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, if you are using Red Hat GFS

3. service clvmd stop

4. service cman stop

Stopping the cluster services on a member causes its services to fail over to an active member.

2. Managing High-Availability Services

You can manage cluster services with the Cluster Status Tool (Figure 5.1, “Cluster Status

Tool”) through the Cluster Management tab in Cluster Administration GUI.

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Red Hat ENTERPRISE LINUX 5 - CONFIGURATION NFS OVER GFS Guida di Installazione Pagina 66