To add a
new computer running OpenVMS Version 8.2-1 to an existing OpenVMS
Cluster configuration, each node in the cluster must be running
OpenVMS Alpha Version 7.3-2 or higher or OpenVMS I64 Version 8.2
or higher. Any node in the cluster that is running an older version
of OpenVMS must be upgraded appropriately before a Version 8.2-1
node can be added.
Alternatively, any OpenVMS Alpha or I64 node that needs to
be upgraded can be temporarily removed from the cluster and added
back after it has been upgraded. This allows you to form the Version
7.3-2/8.2-1 cluster immediately, adding nodes back into the cluster
as they are upgraded. Note that, depending on the number of nodes
being added, you might need to adjust the EXPECTED_VOTES system
parameter to reflect the number of voting nodes and any quorum disk
votes (if a quorum disk is being used). In addition, for any node being
removed from the cluster, you should specify the REMOVE_NODE option
during system shutdown so that the quorum for the remaining nodes
is correctly adjusted.
Currently, OpenVMS Clusters supports a maximum of two
architectures. Therefore, an OpenVMS Cluster that contains both
Alpha and VAX nodes cannot have an I64 node added to it.
HP OpenVMS Version 8.2-1 for Integrity Servers... 
Preparing to Upgrade in an OpenVMS Cluster Environment
