I've just set up a new server with ESXi 4.1, and I want to assign a LUN to it which contains a VMFS (v3.33) datastore being used by 4 ESXi 4.0 hosts. I've done this procedure several times before (not with this combination of host versions, though), but I always get nervous.
Is there a chance that Something Bad could happen to my datastore when I connect the new host to it, or is it just my OCD acting up?
If you follow Dave's instructions above, you have nothing to worry about - though you are taking the right approach by being very careful with Storage matters.
The variations in versions should make no difference at all, as lon as all ESX hosts attached to the storage support the version of the datastore you are connecting to.
Good luck - and don't stress!
Welcome to the VMware Communities forums. You should add it to the new host with the same LUN id as the other hosts. Then just do a Rescan on the new host (don't use the Add Storage wizard). If the storage doesn't show up after a rescan then the vmkernel log file (messages).
If you follow Dave's instructions above, you have nothing to worry about - though you are taking the right approach by being very careful with Storage matters.
The variations in versions should make no difference at all, as lon as all ESX hosts attached to the storage support the version of the datastore you are connecting to.
Good luck - and don't stress!
It worked! Thanks.