Adding SAN Volume Controller 2145-8G4 nodes to an existing cluster

You can add SAN Volume Controller 2145-8G4 to increase the size of your cluster.

This task assumes that the following conditions exist:

The cluster software version is 4.2.0 or higher
All nodes that are configured in the cluster are present
All errors in the cluster error log are fixed
All managed disks (MDisks) are online

Install the SAN Volume Controller 2145-8G4 nodes and the 2145 UPS-1U units in the rack.
Connect the SAN Volume Controller 2145-8G4 nodes to the LAN.
Connect the SAN Volume Controller 2145-8G4 nodes to the SAN fabric.
Power on the SAN Volume Controller 2145-8G4 nodes and the 2145 UPS-1U units.
Zone the SAN Volume Controller 2145-8G4 node ports in the existing SAN Volume Controller zone. A SAN Volume Controller zone should exist in each fabric with only node ports.
Zone the SAN Volume Controller 2145-8G4 node ports in the existing SAN Volume Controller and storage zone. A storage zone should contain all of the SAN Volume Controller 2145-8G4 node ports and controller ports that are in the fabric and used to access the physical disks.
For each system that is used with the SAN Volume Controller cluster, use the system management application to map the LUNs that are currently used by the cluster to all of the WWPNs of the SAN Volume Controller 2145-8G4 nodes that you want to add to the cluster. The SAN Volume Controller 2145-8G4 nodes must see the same LUNs that the existing nodes in the cluster can see before they can be added to the cluster. If the SAN Volume Controller 2145-8G4 nodes cannot see the same LUNs, the system is marked degraded.
Add the SAN Volume Controller 2145-8G4 nodes to the cluster.
Check the status of the systems and MDisks to ensure that status has not been marked degraded. If the status is degraded, there is a configuration problem that must be resolved before any further cluster configuration tasks can be performed. If the problem cannot be resolved, remove the newly added SAN Volume Controller 2145-8G4 nodes from the cluster and contact the IBM® Support Center for assistance.