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Attaching esxi4.1 host to vCenter5

sysprof asked
Last Modified: 2012-08-30
Hi I have recently configured a new vSphere5 environment comprising of 3 DL580 G7 servers with 256GB RAM each and a vCenter5.0 server. I need to now migrate around 60 of my VM(s) from existing 4.1 based vMware cluster with vCenter4.1 that have NFS based storage.

Im thinking to simply detach 1 esxi4.1 host at a time from existing vCenter4.1 server and attach to new vCenter5 and migrate all vm (s) to new esxi5 host

I was told earlier by one of the experts that its possible but i have been told that vCenter4.1 will lock esxi4.1 host and i cant detach 4.1 host from vCenter 4.1 and attach to vCenter5.0. I will have to instead REMOVE it from vCenter4.1 and then add to vCenter5.0. Obviously we cant remove without entering Maintenance mode and therefore i will not be able to migrate vm(s) across

Could someone re-confirm that a detach and attach process will work between 4.1 & 5.0 vCenters? and i dont need to worry about locking
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