Building Disaster Recovery Serviceguard Solutions Using Metrocluster with 3PAR Remote Copy

Figure 10 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
Steps to perform a rolling upgrade of Metrocluster software as follows:
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.
Upgrading Metrocluster with SADTA configured
In a Metrocluster with SADTA configured, you must follow additional steps for all software upgrades
including Metrocluster software, HP-UX, Serviceguard, or Serviceguard extension for RAC. While
upgrading, ensure that the upgrade procedure is first completed on all nodes in a site before
upgrading nodes in the other site.
To upgrade Metrocluster software, HP Serviceguard, SGeRAC, or HP-UX:
1. Identify the sites in the Metrocluster and the associated nodes.
# cmviewcl -l node
Select a site to perform the rolling upgrade.
2. Select a node in a site to perform the rolling upgrade.
# cmviewcl –l node -S <site_name>
3. View all the packages running on the selected node.
# cmviewcl -l package -n `hostname`
Identify the Site Controller packages that are running on the node.
4. Move all Site Controller packages running on the selected node to a different node in the
same site using DETACH halt mode.
For more information on moving the Site Controller package, see “Moving the Site Controller
package to a node at the local site” (page 50).
54 Administering a Metrocluster with 3PAR Remote Copy