Adding Nodes To Clusters - Cisco MDS 9216 Configuration Manual

Adding Nodes to Clusters

Adding Nodes to Clusters

Once the initial node is used to create a cluster, you can add other required nodes to the same cluster.
You can determine which nodes are available by issuing the show cluster cluster-name nodes candidate
command.
To add other nodes to a cluster, follow these steps.
Step 1 Add the other nodes to the cluster.
a.
Caution Do not add two nodes from the same CSM to the same I/O group of a cluster. Cisco MDS SVC does not
allow this configuration as both nodes will be contained in one power domain. If both nodes are
configured in the same I/O group of one cluster and a power failure occurs, both nodes will fail.
b.
Cisco MDS 9000 Family SAN Volume Controller Configuration Guide
3-6
Verify which nodes can be added to the cluster. This step is important if you have several SVC nodes
in the SAN,.
switch1(svc)# show cluster SampleCluster nodes candidate
-----------------------------------------------------------------------------
NODE
-----------------------------------------------------------------------------
switch1.7.2
switch1.7.1
switch1.3.2
This example has 3 other SVC nodes in the SAN that are candidate nodes for this cluster. The node
name is an encoding of the <switch-name>.<slot-number>.<node-ID>. For example: switch1.7.2 is
in the switch named switch1 at slot 7 node 2.
Add more nodes (switch 1-slot 3-node 2, switch 1-slot 7-node 1, and switch 1-slot 7-node 2) to the
newly-created cluster by entering the configuration submode for the selected cluster
(SampleCluster)
switch1(svc)# cluster config SampleCluster
switch1(svc-cluster)# node nwwn 21:28:00:05:30:00:11:69 iogroup 1
switch1(svc-cluster)# node nwwn 21:26:00:05:30:00:11:69 iogroup 2
switch1(svc-cluster)# node nwwn 21:2a:00:05:30:00:11:69 iogroup 2
switch(svc-cluster)# exit
Chapter 3
NWWN
21:28:00:05:30:00:11:69
21:26:00:05:30:00:11:69
21:2a:00:05:30:00:11:69
78-16119-01, Cisco MDS SAN-OS Release 1.3
Creating and Managing Clusters