I am in the process of migrating my entire network from class C /24 to a Class B /16 totally changing IPs.
In my vmware infracture I have a VNX3150 Datastorage in one cluster, one vcenter server with 3 host and about 10 bussiness critical VMsThe migration of the VNX seems very straight forward once I have a new vcenter. I use ISCI which is in a separate network that I am not planning to touch at all.
I thought the migrating the ESXI was a straight fooorward task as well. Removing Hosts from Vcenter changing Ip of the hosts and subnetmask rebooting creating a new vcenter (which I can afford since is very small datacenter) with new Ip addressing and Voila rejoing host to Vcenter and life is good!!!
After a conversation with Vmware they seems to believe I need to rebuilt my entire datacenter from scratch, rebuilding ESXI from scratch and rejoining storage and recreating networking switches and connections. The question is is it true? do I have to go to the painful task of starting from 0?
I alrady have enough moving DControllers, PC and all kind of equipment..HELP!!
That is what i thought even if i am changing subnets i do not see the need of rebuilding, i think i am going to try it that way: removing from vcenter make the changes in the DCUI and rejoin as you mention. Do you think i need to recreate the vcenter server or just change ips before rejoining?
To be safe what is the best way to backup my VMs copying the folders where the Vms live on, creating OVF or you have a suggestion.
Thanks a lot again!!!!!