If you are comparing VM and VMware, I would estimate that 1 IFL will support about the same load as 5-10 HP blades running ESX. How many virtual severs will VMware support? Depending on the workload sometimes only 1 sometimes 70 per ESX. How many will VM support? Between a few and a thousand per IFL.
On 12/6/2010 11:07 AM, John Cousins wrote:
Here we go again! Without success, we've been trying to get the IT department here to adopt z/Linux since 2003! Our zVM licence has been recently cancelled, and I have just had a request from our Enterprise Architects for some costing for z/Linux as they need to compare server virtualisation costs with VMware! One problem of trying to get a cost per virtual server was always trying to estimate how many servers an IFL will support. We had a 13 SuSe servers defined in a z800 IFL but as they were hardly used we couldn't measure a thing! So are there any rules of thumb out there on how many production virtual servers would run on a Z10 IFL? Obviously it will depend on server utilisation, guess that will need to be estimated as well? Another question is where do the bulk of the savings come from? From my investigations over the years other success stories suggest most savings come from software licensing, e.g Oracle, Tivoli etc. but also from networking infra-structure by the use of virtual switches. Are there any other areas that provide benefits? Any ideas or constructive suggestions would be gratefully received! Best regards John John Cousins Senior IT Officer Central Support Services ICT Division Bristol City Council Romney House Romney Avenue PO Box 1380 Bristol BS7 9TB Tel : 0117 922 4705 Fax: 0117 922 3983 e-mail: [email protected]
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