Red Hat ENTERPRISE LINUX 5 - ADMINISTRATION Manual

Also see for ENTERPRISE LINUX 5 - VIRTUAL SERVER ADMINISTRATION: Tuning guide Configuration guide Configuration guide Manual Use manual

Contents

Modifying the Cluster Configuration71Members Status DescriptionMember The node is part of the cluster.Note: A node can be a member of a cluster; however, the node may beinactive and incapable of running services. For example, if rgmanageris not running on the node, but all other cluster software components arerunning in the node, the node appears as a Member in the Cluster StatusTool.Dead The node is unable to participate as a cluster member. The most basiccluster software is not running on the node.Table 6.1. Members StatusServices Status DescriptionStarted The service resources are configured and available on the cluster systemthat owns the service.Pending The service has failed on a member and is pending start on anothermember.Disabled The service has been disabled, and does not have an assigned owner. Adisabled service is never restarted automatically by the cluster.Stopped The service is not running; it is waiting for a member capable of startingthe service. A service remains in the stopped state if autostart is disabled.Failed The service has failed to start on the cluster and cannot successfully stopthe service. A failed service is never restarted automatically by the cluster.Table 6.2. Services Status6.3. Modifying the Cluster ConfigurationTo modify the cluster configuration (the cluster configuration file (/etc/cluster/cluster.conf),use the Cluster Configuration Tool. For more information about using the Cluster ConfigurationTool, refer to Chapter 5, Configuring Red Hat Cluster With system-config-cluster.WarningDo not manually edit the contents of the /etc/cluster/cluster.conf file withoutguidance from an authorized Red Hat representative or unless you fully understand theconsequences of editing the /etc/cluster/cluster.conf file manually.ImportantAlthough the Cluster Configuration Tool provides a Quorum Votes parameter inthe Properties dialog box of each cluster member, that parameter is intended only foruse during initial cluster configuration. Furthermore, it is recommended that you retainthe default Quorum Votes value of 1. For more information about using the ClusterConfiguration Tool, refer to Chapter 5, Configuring Red Hat Cluster With system-config-cluster.