HP Serviceguard Version A.11.17 on HP-UX 11i v3 Release Notes, February 2007

Serviceguard Version A.11.17 on HP-UX 11i v3 Release Notes
Installing Serviceguard on HP-UX 11i v3
Chapter 144
Rolling Upgrade Exceptions
HP-UX Cold Install A cold install of the operating system during a
rolling upgrade is not supported. A rolling upgrade cannot include a cold
install of HP-UX on any node. A cold install will remove configuration
information; for example, device file names (DSFs) are not guaranteed to
remain the same after a cold install.
Migrating to Agile Addressing if Using Cluster Lock Disk You
cannot migrate to the HP-UX 11i v3 agile addressing scheme for device
files during a rolling upgrade if cluster lock disks are used as a
tie-breaker, because that involves changing the cluster configuration. See
“Updating the Cluster Lock Configuration” in chapter 7 of Managing
Serviceguard for instructions in this case. See “About Device Special
Files (DSFs)” on page 13 of these Release Notes for more information
about agile addressing.
Upgrading from an Earlier Release if You Are Not
Using Rolling Upgrade (Non-Rolling Upgrade)
If your cluster does not meet the requirements for a rolling upgrade, or
you decide not to use rolling upgrade for some other reason, you must
bring down the cluster (cmhaltcl) and then upgrade Serviceguard and
HP-UX on the nodes. See Appendix E of the Managing Serviceguard
manual.
You can perform a non-rolling upgrade (that is, an upgrade performed
while the cluster is down) from any supported HP-UX/Serviceguard
release to any supported HP-UX/Serviceguard release. See the support
matrix at docs.hp.com -> High Availability -> Support
Matrixes.