[cisco-voip] UCS Sizing woes

[Ki Wi]

All along each C220 server (based on TRC spec), i have sized can only
accomodate like 3 to 4 Cisco VM . Partly because C220 is only 8 CPU core.
If each VM actually takes up 2 vCPU , i can only squeeze 4 VM. If i have a
Unity connection VM, i am able to squeeze only 3 VM since CUC will takes up
additional CPU core.

I discovered that I might be wrong all along after I have read the PCCE
sizing. Looks like if my UCS server have 4 cores , my largest VM needs only
4vCPU for example. As long as the total CPU reservation and memory
reservation doesn't hit the limit, i could actually squeeze more VM in? Is
this true? I know it is true in VMware world (since i am vcp certified) but
I was somehow mislead to believe that each vCPU requirement actually maps
to 1 physical core.

http://www.cisco.com/en/US/docs/voice_ip_comm/cust_contact/contact_center/pcce/pcce_901/reference/guide/PCCE_BK_PBD08CF9_00_packaged-cce_chapter_00.html
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