[cisco-voip] UCS Sizing woes

[Matthew Saskin]

Unfortunately, PCCE is a very special use case tested and approved by the
CCBU.  For all other applications, the rule of no CPU or memory
oversubscription applies.
On May 18, 2013 4:39 PM, "Ki Wi" <kiwi.voice at gmail.com> wrote:

> 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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>
>
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