Upgrade your host adapter firmware if you want to apply bug fixes or enable new functionality.
This procedure relies on the following prerequisites and assumptions.
Your cluster is operational.
This procedure defines Node A as the node with which you begin working. Node B is the remaining node.
Determine the resource groups and device groups that are running on the node on which you plan to upgrade the host adapter firmware.
Move all resource groups and device groups off Node A.
# scswitch -S -h from-node
Perform the firmware upgrade.
For the procedure about how to upgrade your host adapter firmware, see the patch documentation.
(Optional) Return the resource groups and device groups to Node B.
# scswitch -z -g resource-group -h nodename # scswitch -z -D device-group -h nodename