In my previous post I asked about changing the vCenter server and ESX hosts IP address. I did not ask about the SRM service. Below are the procedures I will be using to change the vCenter and ESX IP addresses.
1. Should I break the connection between each site before changing the IP addresses?
2. How / when should SRM be included in the change?
Move vCenter Server to new network
Shutdown all VMs.
Put each ESX server in Maintenance mode.
Change the vMotion IP on each ESX server.
Configuration / Networking / Distributed Virtual Switch
Manage Virtual Adapters
Select VMK0 / Click Edit
Assign New IP Address.
Remove each ESX server from DR Cluster.
Change vCenter server's IP address.
Reboot vCenter server.
Move ESX servers to new network.
Logon to the console as root.
Enter esxcfg-vswif -l to display the IP address.
Enter esxcfg-vswif -i <192.168.145.10> -n <255.255.255.0> vswif0
Enter esxcfg-vswif -l to display the change.
Change gateway - vi /etc/sysconfig/network.
Update Hosts file.
Begin the next ESX server IP address change.
Log back on to each server after it reboots to test connection. ping 192.168.145.20
Restore ESX servers to DR cluster
Update ESX’s DNS records.
Start vCenter Console.
Right mouse click on DR cluster.
Update VM IP addresses
Start each VM.
Access VM via the Console.
Update the IP address.