HP Serviceguard Version A.11.18 Release Notes, September 2008

This workaround involves managing the nodes in the cluster so that all nodes in
the clusters are running only CVM 3.2 or only CVM 3.5, but never a combination
of the two. To do this:
1. Halt Serviceguard on one or more of the cluster nodes while the other nodes
remain in the cluster, still running CVM 3.2.
2. Perform the upgrade from CVM 3.2 to 3.5 on the nodes which are not running
in the Serviceguard cluster, but do not restart them in the Serviceguard cluster
when the CVM upgrade is complete.
3. Now, when you are able to take the entire cluster down, run cmhaltcl -f
on one of the nodes that is still running in the Serviceguard cluster.
4. After the cluster has successfully halted, start the Serviceguard cluster on the
nodes that were upgraded to CVM 3.5. To do this, you must not run the normal
cmruncl command to start up the Serviceguard cluster, since that will attempt
to start all cluster nodes. Instead, run cmviewcl -n node1 -n node2 -n
noden, where the nodes specified are the nodes that were upgraded to CVM
3.5.
5. Now perform the CVM upgrade from 3.2 to 3.5 on the remaining nodes in
the cluster.
6. After the upgrade to CVM 3.5 has been completed on each node, the node
can rejoin the running Serviceguard cluster by running the command,
cmrunnode on that node.
For example, in a four-node cluster, you could take down two nodes in the cluster
and upgrade CVM to 3.5, while the other two nodes continue running the cluster
with CVM 3.2. Then halt the entire cluster, and start up the cluster on the two
nodes that were upgraded to CVM 3.5. Now upgrade the remaining CVM 3.2
nodes to CVM 3.5; once the upgrade is complete, they can be added back into the
cluster.
JAGag27186 (SR8606472298): OLR of a LAN Card in SG cluster fails on HP-UX 11i
v3
Problem: Online replacement (OLR) of a LAN card in a Serviceguard cluster fails on a
system running HP-UX 11i v3 because the Critical Resource Analysis (CRA) performed
as part of the OLR operation returns CRA_SYS_CRITICAL. You will encounter this
problem on HP-UX 11i v3 whether you use the Peripheral Device Tool (pdweb) or the
HP-UX olrad command.
Workaround: Apply patch PHNE_35894. (See “Patches for this Version” (page 77) for
more information about patches.)
Known Problems and Workarounds 89