[Info-vax] VMware

[Arne Vajhøj]

On 12/10/2019 9:15 PM, Kerry Main wrote:
> Yes, you can put a large number of VM's on a single server, but you also
> need humungous amounts of physical memory on that server which adds huge
> costs to each physical server. I have seen quotes for enterprise ProLiant's
> with 1-2 TB's of memory in the $250,000 range - per server!

If they don't need HP branded memory they can find third party memory
for Proliant for about 10 dollars per GB. That is 10K-20K for 1-2 TB.

(BTW I think DL580 prefer 1.5 or 3)

> Also, keep in mind that if using COTS products that are licensed per core,
> then you definitely want to keep that COTS product on its own small VMware
> cluster - just ask those who deploy Oracle on VMware.

Most COTS vendors charge per VCPU allocated to the VM.

Only a few charge per core in the physical server.

> Now, however, large companies have the problem of VM sprawl. Where they
> might have managed 40-80 physical servers before, they now manage hundreds
> of separate VM's. A common question from IT C levels is "how come our IT
> costs keep going up even though we consolidated all the physical servers we
> had before?"

True.

But their cost would have totally exploded if they had had the same 
growth of instances with physical servers.

Arne