Configuring for high availability on IBM HACMP requires:
2 hardware-compatible nodes running HACMP for AIX, Version 4.2.2, that are configured in the same cluster.
Each node must have 3 IP addresses, one for service, one for boot, and one for standby. The standby IP address should be on a different subnet from the other two.
Shared disk devices set up for the high availability system between the nodes.
Shared logical volume groups set up to contain all the database devices in the cluster. Make sure that both nodes have the same major number for each of the shared volume groups defined in the cluster. In this chapter, these resources are referred to as:
– shared_vg1 for the primary node
– shared_vg2 for the secondary node
See the HACMP for AIX Installation or Administration Guide for information about installing the high availability subsystem.
Sybase also recommends that you identify the following resources in advance.
A shared volume group name for the primary node (for example, shared_vg1).
A shared volume group name for the secondary node (for example, shared_vg2).
A resource group name for the primary companion (for example, resgrp1).
A resource group name for the secondary companion (for example, resgrp2).
The name of the primary companion.
The name of the secondary Adaptive Server companion.
