To add a new OpenVMS Version 8.4 Alpha or Integrity servers system to an
existing OpenVMS Cluster configuration, all existing Alpha nodes in
the cluster must be running OpenVMS Alpha Version 7.3-2 or later,
and all existing OpenVMS Integrity server nodes must be running OpenVMS
Integrity servers Version 8.2-1 or later. Any node in the
cluster that is running an older version of OpenVMS must be upgraded
appropriately before you can add a Version 8.4 node. If you have a VAXcluster, any node running an older
version of OpenVMS VAX must be upgraded to Version 7.3 of OpenVMS
VAX before you can add an Alpha Version 8.4 node.
Alternatively, any OpenVMS Alpha or Integrity servers node that needs to be upgraded
can be removed temporarily from the cluster and added back after it
has been upgraded. This allows you to form a supported 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.