You must be an experienced Sun Cluster administrator to administer Sun Cluster Geographic Edition software.
This section describes the Sun Cluster administration topics that you need to understand before you administer the Sun Cluster Geographic Edition software.
You use either Sun Cluster commands or the Sun Cluster Manager to create failover and scalable resource groups.
For more information about administering resources and resource groups in Sun Cluster software, see the Sun Cluster Data Services Planning and Administration Guide for Solaris OS.
The logical hostname is a special high-availability (HA) resource. The geoadm start command configures the logical hostname that corresponds to the cluster name. The IP address and host maps for the logical hostname must be set up before you run this command. Before assigning hostnames, familiarize yourself with the legal names and values that are described in Appendix B, Legal Names and Values of Sun Cluster Geographic Edition Entities.
For more information about using the geoadm start command , see Enabling the Sun Cluster Geographic Edition Software.
If you are using Sun StorageTek Availability Suite for data replication, a logical hostname is created for each device group to be replicated. For more information, see Chapter 1, Replicating Data With Sun StorageTek Availability Suite Software, in Sun Cluster Geographic Edition Data Replication Guide for Sun StorageTek Availability Suite.
The following table lists the Sun Cluster and Sun Cluster Geographic Edition components that require IP addresses. Add these IP addresses to the following locations:
All naming services that are being used
The local /etc/inet/ipnodes file on each cluster node, after you install the Solaris OS software
For more information about configuring the IP address and host maps during the installation of Sun Cluster software, refer to Chapter 2, Installing Software on the Cluster, in Sun Cluster Software Installation Guide for Solaris OS.
A device group is a hardware resource that is managed by the Sun Cluster software. A device group is a type of global device that is used by the Sun Cluster software to register device resources, such as disks. A device group can include the device resources of disks, Solaris Volume Manager disksets, and VERITAS Volume Manager disk groups.
For information about configuring device groups in Sun Cluster software, refer to Chapter 5, Administering Global Devices, Disk-Path Monitoring, and Cluster File Systems, in Sun Cluster System Administration Guide for Solaris OS.
The Sun Cluster Geographic Edition software configures Sun Cluster device groups to include replication.
For more information about configuring data replication in Sun Cluster Geographic Edition software, see Chapter 1, Replicating Data With Sun StorageTek Availability Suite Software, in Sun Cluster Geographic Edition Data Replication Guide for Sun StorageTek Availability Suite, Chapter 1, Replicating Data With Hitachi TrueCopy Software, in Sun Cluster Geographic Edition Data Replication Guide for Hitachi TrueCopy, and Chapter 1, Replicating Data With EMC Symmetrix Remote Data Facility Software, in Sun Cluster Geographic Edition Data Replication Guide for EMC Symmetrix Remote Data Facility.