Hopefully this is a straight forward question. Next week we are doing a big network switch replacement / and some re-working of some of our networking. Part of this project, we are changing the IP address scheme of our iSCSI network (with vmware and our san). Currently, our environment is 2 ESXi 5.1 hosts, a vcenter server, and 1 san. I just have a few questions so I don't hose everything up. Because we are moving our iSCSI switches, everything has to come down.
With that being said - I am thinking this should be my process:
1. Power down all virtual machines
2. Unmount our datastores (all external san storage)
3. Disconnect Storage Adapter
4. Change IP addresses of san
5. Change IP addresses of vSwitches to correlate to the new iSCSI network
6. Reconnect storage adapter
7. Remount datastores
3 questions.
1. Is the above process valid?
2. Will I have to setup all of the VMKernel Port Bindings again?
3. I have my configured scratch location set up to be on our shared storage for each of these hosts because they have no internal disk. When I unmount the datastores, will this cause an issue?
Thanks in advance.
SB