04-10-2015 03:11 AM - edited 03-18-2019 11:30 AM
Hi,
I need to deploy CUCM (5 nodes), Unity Connection (1 Pair) and Unified Presence server (1 Pair) in a virtualised environment. Approximately 5000 users and 10000 end devices. How do I select a UCS server type and model?
Thank you,
Fawaz
04-10-2015 03:40 AM
Hi
You work out how many CPUs and how much memory/disk each VM needs (CUCM may need 2 or 4 procs depending on node size for example).
Then you add that up.
And select a UCS platform that has the appropriate CPU/memory count and disk space etc.
Google UC on UCS to get the Cisco wiki with all the design information.
The only non-intuitive one is Unity Conn - you need to leave 1 CPU core spare on any host that runs this app, for reasons I don't pretend to understand properly :-)
Aaron
04-10-2015 04:11 AM
[+5] to Aaron
Hi,
you can also use VM Placement tool
http://docwiki.cisco.com/wiki/Virtualization_for_Cisco_Unified_Communications_Manager_(CUCM)
regds,
aman
04-10-2015 06:24 AM
Ah yes... good call (+5)
04-10-2015 06:54 AM
Actually, with CUC 10.5(2) and ESXi 5.5, you no longer need that extra core, and there's a really good white paper from ESXi and real time applications that addressed the why for it, James Arias posted it in a thread in the partner community just before ESXi 5.x was released.
04-10-2015 07:10 AM
[+5] to Jaime.
I was refering the thread where in this was mentioned.
https://supportforums.cisco.com/discussion/12023671/no-cpu-core-reserved-esxi-scheduler
can u please share the thread of James Arias?
regds,
aman
04-10-2015 07:14 AM
https://communities.cisco.com/thread/38376
04-10-2015 07:52 AM
Very useful Jaime; thanks :-)
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