[cisco-voip] CallManager 4.2 upgrade to 8.x on UCS

[Wes Sisk]

"As long as performance doesn't suffer"

That's the gotcha.  We don't have a way inside the CM application or VOS 
to reliably detect when "performance suffers". Example: your users can 
experience delayed dialtone up to 5 seconds without every triggering 
high IOWait or CodeYellow alarms.  You are left to depend on user 
reports.  As an administrator that leaves you in a completely reactive 
position. That is not acceptable especially where voice and calls are 
involved.

/Wes

On Thursday, August 05, 2010 11:47:50 AM, Rhodes, Geoff 
<GRhodes at rbh.com> wrote:
> We are about to upgrade our existing CallManager 4.2 system to 8.x, probably on our new Cisco UCS platform.  We have been told by our reseller that Cisco requires that the Publisher and Subscriber run on separate blades, and that NO OTHER APPS are allowed to run on those blades.  I am totally blown away by this.  Our phone system is relatively small (~ 400 phones), and I just cringe when I think that I will be using an entire blade to run a single server.  We were told they have to be running under VSphere 4 (ESXi), which is what we are running on all the other blades for our servers.  I mean these UCS blades are SO beefy, we are easily running multiple Exchange and SQL servers on one blade.
>
> I simply cannot understand why it's required to have its own blade, especially when it running under VMWare.  As long as performance doesn't suffer, why would it even care?  I was told that we could run Unity and Presence servers on the same blade our Pub or Sub, but no other "non-Cisco" apps are allowed.
>
> Grrrr.
>
> Has anyone run 8.x on UCS?
>
> Many thanks in advance for any help here...
>
>
> Geoff Rhodes
> Director of Information Technology
> ROBINSON, BRADSHAW & HINSON
> 101 North Tryon Street, Suite 1900
> Charlotte, NC 28246
> P: 704.377-8188
> F: 704-339-3488
> grhodes at rbh.com
> www.rbh.com
>
>
>
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