VCS clustered Enterprise vault migrate index service to new node

Hi,

We have three node cluster for Enterprise vault in Veritas Cluster server, the node details are as follows:

Node 1: EV server with all services

Node 2: SQL server

Node 3: Spare server for EV service failover and SQl service failover.

Also GCO and VVR is configured for SQl server and EV server volumes are replicating using VVR but are not in VCS control.

Now we want to remove index service from EV server (node 1) and add it to new server, also add new server to the cluster.

Can anybody share the steps we should follow from VCS end to perform above changes.