VM sizing

Patrick Goh
Patrick Goh used Ask the Experts™
on
I have a cluster of 3 esxi hosts, each host has 2 x 8-core CPU and 256GB RAM; datastore size 6TB.
Is it realistic to run a MS SQL server VM with 16 core, 128GB RAM, and 3TB disk space on this cluster?
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Andrew Hancock (VMware vExpert / EE Fellow)VMware and Virtualization Consultant
Fellow 2018
Expert of the Year 2017

Commented:
Yes, depends on the other free resources you have available.

and do you really require 16 sockets for your VM.
System Engineer
Commented:
Hi,
well, you could also think of a separate physical deployment here.
But vSphere is still an option, sure, also there might not be the need to configure 16 vcpu for this VM..

Virtualization in your case :
pros
- ease of use (vmotion and all vmware potential)
- easier protection (backup/restore, replication)
...

cons
- it will already take a big part of your vmware cluster ressources
- less performance than without virtualization
...

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