Installation medium

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The PowerHA® SystemMirror® software installation medium contains multiple file sets, some of which you install on all cluster nodes and clients. These file sets provide the services for cluster membership, system management, configuration integrity and control, fallover, and recovery. It also includes cluster status and monitoring facilities for programmers and system administrators.

The PowerHA SystemMirror Application Plug-in software (on the PowerHA SystemMirror installation medium) contains the network service plug-in images. This plug-in file set provides example scripts to start and stop the network service scripts for Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), and printer services. Each network service has start and stop scripts bundled in a file set. These scripts are provided as examples that can be customized for your environment.

Several prerequisites must be completed before setup begins. A setup wizard is included in each file set to assist with the setup after installation.

The plug-in file sets are as follows:

  • cluster.es.plugins.dns. This plug-in file set provides scripts to start and stop the DNS server process, provides a script to confirm that configuration files are present and stored in a shared file system, and scripts called by the monitoring functions of PowerHA SystemMirror that check on DNS server process life.
  • cluster.es.plugins.dhcp. The DHCP Network Service Plug-in provides scripts to start and stop the DHCP server process, provides a script to ensure that configuration files are present and stored in a shared file system, and scripts called by the monitoring functions of PowerHA SystemMirror that check on DHCP server process life.
  • cluster.es.assist.printserver. This plug-in file set provides scripts to start and stop the print server process, provides a script to ensure that configuration files are present and stored in a shared file system, and scripts called by the monitoring functions of PowerHA SystemMirror hat check on print server process life.