[cisco-voip] Windows updates on CCM and CRS servers

[Micah Bennett]

Hello All

I need to do some windows updates on our Call manager servers and IPCC
servers.  I have looked at all the documentation and know where to
download the files from the Cisco site.  I still have one question.  

I have 3 Call Manager Servers (1 Pub, 2 Sub) and 2 CRS Servers.  I have
a very short maintenance window to work with so I want to spread this
over a couple of days.  

I know I need to update the Publisher first, but can I safely update the
Publisher on one night and then the Subs and CRS servers on single
nights after that.  If I do one server on each night, it will take me 5
nights.  If it goes well, I may be able to do two a night, but I know I
will not be able to do all 5 in one night.  I did not know or see in the
docs that having the servers run on different OS versions is good or
bad.  

Also, are the updates for the Unity server the same or different as what
I have found for the CCM and CRS servers.

Micah Bennett
Telecommunications Admin
Automated License Systems

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