Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access EVA A.05.01

Figure 21 Rolling upgrade procedure for Metrocluster
The subsequent sections describe the procedures for completing a rolling upgrade for Metrocluster
configurations with SADTA. These sections describe upgrading HP Serviceguard, HP-UX, and
Metrocluster Replication software in Metrocluster SADTA configurations.
Upgrading Metrocluster replication software
To perform a rolling upgrade of Metrocluster software:
1. Disable package switching for all Metrocluster packages.
2. Install the new Metrocluster software on all nodes.
3. Enable package switching for all Metrocluster packages.
To upgrade the array-specific replication management software, see “Upgrading replication
management software” (page 68).
Upgrading Metrocluster with SADTA configured
In a Metrocluster with SADTA configured, you must perform additional steps for all software
upgrades including Metrocluster software, HP-UX, Serviceguard, or Serviceguard extension for
RAC. For information on upgrading the array-specific replication management software, see
“Upgrading replication management software” (page 68). While upgrading, ensure that the
upgrade procedure is complete on all nodes in a site before you upgrade nodes in another site.
To upgrade Metrocluster software, HP Serviceguard, SGeRAC, or HP-UX:
66 Administering Metrocluster