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HACMP Installation and Cluster Definition 97
HACMP software to HACMP for AIX, Version 4.3. The comments on
upgrading the Operating System are not included.
If you are already running AIX 4.3, see the special note at the end of this
section.
4.1.2.1 Upgrading from Version 4.1.0 through 4.2.2 to Version 4.3
The following procedure applies to upgrading a two-node or multi-node
cluster running HACMP Version 4.1.0 through 4.2.2 to Version 4.3 when the
installed AIX version is earlier than 4.3.
To perform a rolling AIX migration installation and HACMP upgrade from
Version 4.1.0 through Version 4.2.2 to Version 4.3, complete the following
steps:
Upgrade AIX on One Node
The following steps describe how to upgrade AIX on one node:
1. If you wish to save your cluster configuration, see the chapter “Saving and
Restoring Cluster Configurations” in the
HACMP for AIX, Version 4.3:
Administration Guide
, SC23-4279.
2. Shut down the first node (gracefully with takeover) using the
smit clstop
fastpath. For this example, shut down Node A. Node B will take over Node
A's resources and make them available to clients.
See the chapter “Starting and Stopping Cluster Services” in the
HACMP
for AIX, Version 4.3: Administration Guide,
SC23-4279
for more
information about stopping cluster services.
3. Perform a Migration Installation as described in your
AIX Installation
Guide,
SBOF-1803
on Node A.
The Migration Installation option preserves the current version of the
HACMP for AIX software and upgrades the existing base operating
system to AIX 4.3.2. Product (application) files and configuration data are
also saved.
4. Check the Migration Installation. Verify that all the disks are available. Run
lppchk -v and oslevel to ensure that the system is in a stable state.
Although your objective in performing a migration installation is to keep the
cluster operational and to preserve essential configuration information, do
not run your cluster with mixed versions of the HACMP for AIX software for
an extended period of time.
Note