[cisco-voip] UCS Sizing woes

[Ki Wi]

Anyone used spec based and run into any production issue?

Spec based requires vsphere server to monitor performance, so far i didn't
sell any solution based on that. Just worried that client will run into any
issue due to IOPS.


On Tue, May 21, 2013 at 5:22 AM, Justin Steinberg <jsteinberg at gmail.com>wrote:

> there are plenty of OVA templates you can deploy where the virtual machine
> only needs 1 vCPU.  Also, if you go specs based, there are CPUs that go up
> to 8 cores that you can put in a C220.  Two of those CPUs and you have 16
> cores for your VMs.  At that point you are probably going to be concerned
> about your disk IO if you have DAS
>
>
> On Mon, May 20, 2013 at 11:46 AM, Ki Wi <kiwi.voice at gmail.com> wrote:
>
>> That's is really sad. It is really a waste of resources especially if we
>> purchased TRC servers. Hardly those tiny VMs even use near 24gb of memory :(
>>
>>
>> On Sun, May 19, 2013 at 8:50 PM, Matthew Saskin <msaskin at gmail.com>wrote:
>>
>>> 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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>
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