[cisco-voip] CUCM 6.1 Upgrade Recovery Question

[STEVEN CASPER]

Getting ready to upgrade  from Call Manager 4.1.3 to 6.1.1 by removing our
existing hard drives and installing new hard drives to load 6.1.1 on. The system will be
then be restored using the DMA file.

If we had to fall back to 4.1.3 by reinstalling the 4.1.3 disk drives do we need to do
anything  special or is it simply a matter of powering down the Call Manager servers, removing the 6.1 disks, inserting the 4.1.3 disks and powering the servers up? I have tried this in the lab and it seemed to work fine but I just want to make sure I am not missing anything.
 
Thanks!
Steve

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