Upgrading a Cluster

This procedure upgrades a cluster and its nodes while the cluster remains accessible. This is accomplished by upgrading one node in the cluster at a time so that at least one node remains online at all times. When all of the nodes in the cluster are upgraded, the cluster protocol version is upgraded to support the new version of the software.

To upgrade a cluster

Upgrade each node in the cluster to the new software version as follows:
1. Stop the node (as described in “Stopping a Cluster”).
2. Upgrade the software on the node.
3. Restart the node (as described in “Starting a Node”).
4. Repeat these steps for each node in the cluster, one node at a time.
Select the cluster to be upgraded.
Choose Clusters > Rolling Upgrade (Selected menu) or Cluster Rolling Upgrade (Command Launcher).

Complete the Rolling Upgrade dialog box as follows (if applicable):

Cluster:

Type the name of the cluster or click Browse to select a cluster.

When you have provided all necessary information in the dialog box, click OK.

Notes:

This task is only applicable in a cluster environment.
This task upgrades the cluster to a new protocol version while the cluster remains accessible.
All nodes in the cluster must be upgraded to the new version of the software before the cluster is upgraded. To avoid shutting down the cluster, you must stop, upgrade, and restart one node in the cluster at a time.
Once the cluster is upgraded, it cannot be downgraded to the previous version.

Upgrading a Cluster

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To upgrade a cluster