Installation guide

10. Configuring Cluster Storage .........................................................................45
4. Managing Red Hat Cluster With Conga ..................................................................47
1. Starting, Stopping, and Deleting Clusters ........................................................47
2. Managing Cluster Nodes ...............................................................................48
3. Managing High-Availability Services ...............................................................49
4. Diagnosing and Correcting Problems in a Cluster ............................................50
5. Configuring Red Hat Cluster With system-config-cluster ....................................51
1. Configuration Tasks ......................................................................................51
2. Starting the Cluster Configuration Tool ........................................................52
3. Configuring Cluster Properties .......................................................................57
4. Configuring Fence Devices ............................................................................58
5. Adding and Deleting Members .......................................................................59
5.1. Adding a Member to a Cluster .............................................................59
5.2. Adding a Member to a Running Cluster ...............................................61
5.3. Deleting a Member from a Cluster .......................................................63
6. Configuring a Failover Domain .......................................................................64
6.1. Adding a Failover Domain ...................................................................66
6.2. Removing a Failover Domain ..............................................................69
6.3. Removing a Member from a Failover Domain .......................................69
7. Adding Cluster Services ................................................................................70
8. Adding a Cluster Service to the Cluster ..........................................................70
9. Propagating The Configuration File: New Cluster ............................................73
10. Starting the Cluster Software .......................................................................73
6. Managing Red Hat Cluster With system-config-cluster ......................................75
1. Starting and Stopping the Cluster Software .....................................................75
2. Managing High-Availability Services ...............................................................76
3. Modifying the Cluster Configuration ................................................................78
4. Backing Up and Restoring the Cluster Database .............................................79
5. Disabling the Cluster Software .......................................................................80
6. Diagnosing and Correcting Problems in a Cluster ............................................81
A. Example of Setting Up Apache HTTP Server ..........................................................83
1. Apache HTTP Server Setup Overview ............................................................83
2. Configuring Shared Storage ...........................................................................84
3. Installing and Configuring the Apache HTTP Server ........................................84
B. Fence Device Parameters .....................................................................................89
C. HA Resource Parameters .....................................................................................95
D. HA Resource Behavior .......................................................................................107
1. Parent, Child, and Sibling Relationships Among Resources ...........................108
2. Sibling Start Ordering and Resource Child Ordering ......................................109
2.1. Typed Child Resource Start and Stop Ordering ..................................109
2.2. Non-typed Child Resource Start and Stop Ordering ............................112
3. Inheritance, the <resources> Block, and Reusing Resources .........................114
4. Failure Recovery and Independent Subtrees ................................................115
5. Debugging and Testing Services and Resource Ordering ..............................116
E. Upgrading A Red Hat Cluster from RHEL 4 to RHEL 5 ..........................................119
Index .....................................................................................................................123
Configuring and Managing a Red Hat Cluster
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