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Adding a node to a single-node cluster

Tasks to add a node to a single-node cluster specifies the activities involved in adding nodes to a single-node cluster. All nodes in the new cluster must run the same version of VCS. The example procedure refers to the existing single-node VCS node as Node A and the node that is to join Node A to form a multiple-node cluster as Node B.

Tasks to add a node to a single-node cluster

Task

Reference

Set up Node B to be compatible with Node A 

Setting up a node to join the single-node cluster 

  • Add ethernet cards for private heartbeat network for Node B
  • If necessary, add ethernet cards for private heartbeat network for Node A
  • Make the ethernet cable connections between the two nodes

Installing and configuring Ethernet cards for private network 

Connect both nodes to shared storage 

Configuring the shared storage 

  • Bring up VCS on Node A
  • Edit the configuration file

Bringing up the existing node 

If necessary, install VCS on Node B and add a license key. 

Make sure Node B is running the same version of VCS as the version on Node A. 

Installing the VCS software manually 

Edit the configuration files on Node B  

Creating configuration files 

Start LLT and GAB on Node B 

Starting LLT and GAB 

  • Start LLT and GAB on Node A
  • Restart VCS on Node A
  • Modify service groups for two nodes

Reconfiguring VCS on the existing node 

  • Start VCS on Node B
  • Verify the two-node cluster

Verifying configuration on both nodes 


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