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Building Disaster Recovery Serviceguard Solutions Using Metrocluster with EMC SRDF

ManualsBrandsHP ManualsSoftwareHP Serviceguard Metrocluster with Continuous Access EVA
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Rolling upgrade
Metrocluster configurations without SADTA feature configured follow the HP Serviceguard rolling
upgrade procedure. The HP Serviceguard documentation includes rolling upgrade procedures to
upgrade the Serviceguard version, the HP-UX operating environment, as well as other software.
This Serviceguard procedure, along with recommendations, guidelines and limitations, is applicable
to upgrading Metrocluster versions that do not use the SADTA feature. For more information about
completing a rolling upgrade of HP Serviceguard, see the latest edition of Managing Serviceguard,
available at http://www.hp.com/go/hpux-serviceguard-docs —> HP Serviceguard.
Figure 22 is a graphical representation of the procedures to be followed while performing a rolling
upgrade for Metrocluster configurations with and without SADTA.
Figure 22 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 the nodes.
3. Enable package switching for all Metrocluster packages.
Upgrading Metrocluster with SADTA configured
In a Metrocluster with SADTA configured, all software upgrades including Metrocluster software,
HP-UX, Serviceguard, or Serviceguard extension for RAC require additional steps to be followed.
While upgrading, ensure that the upgrade procedure is first completed on all the nodes in a site
before upgrading the 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
68 Administering Metrocluster