Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

H Rolling Upgrade for Metrocluster
This appendix elaborates the procedures for completing a rolling upgrade of Metrocluster versions.
Following are the topics discussed in this appendix:
• “Rolling Upgrade Overview” (page 511)
• “Rolling Upgrade in Metrocluster Configurations” (page 512)
• “Limitations of the Rolling Upgrade for Metrocluster” (page 513)
• “Upgrading Replication Management Software” (page 513)
Rolling Upgrade Overview
Metrocluster configurations without Site Aware Disaster Tolerant Architecture (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 on completing a rolling upgrade of HP
Serviceguard, see the Managing Serviceguard, Nineteenth Edition guide, available at http://
www.hp.com/go/hpux-serviceguard-docs —> HP Serviceguard.
For Metrocluster configurations without the SADTA feature configured, certain additional steps
must be completed while performing the rolling upgrade.
Figure 86 is a graphical representation of the procedures to be followed while performing a rolling
upgrade for Metrocluster configurations with and without SADTA.
Figure 86 Rolling Upgrade Procedure for Metrocluster
Rolling Upgrade Overview 511