Perry Whittle (10/21/2016)
SQLKnowItAll (10/20/2016)
I have designed hosts specifically for only 1vm. If you believe you can't get the same or better performance after virtualization, I'm sorry for you. There's not much more I can say here, this really isn't the forum for it.And that's the whole point, when you get to the scenario where you dedicate a whole host resource to 1 VM, it very likely shouldn't be a VM. That's wasting valuable money paying ESX licences, etc and as I said the storage is the weak point. Doesn't matter how hot your hardware is the virtual storage is the weakest link.
I'm sorry for you and more importantly your employers
Well.. there are, in fact, cases for this. Is it an edge case? Yes. However, my point is there are sometimes other advantages to virtualization. I.e. Ha/dr features, scalability, etc. And yes, sometimes an employer asks you to build a system that spends a lot of money to get HA and DR that it needs. In those cases could I have used the same hardware to build a better performing system, probably. However the business needs did not require that. FYI, that idea of 1 vm per host came from a sql vmware expert who's clients are very satisfied. Now my employers are as well.
Jared
CE - Microsoft