I have a cluster of four ESX 3.01 servers, SAN back end, VC2.01, full licenses.
Everything is working as it should. Vmotion works, and DRS works. However, I have four terminal server VMs that I wish to keep separated onto their own machines to ensure the load (and mostly fault tolerance) is maintained.
I set up a simple DRS rule for the cluster, type "Separate Virtual Machines" and included the four VMs.
Unfortunately, DRS seems to be ignoring this, and it often ends up with two or three of the VM's running on the same host. Because these are the highest spec VMs on the cluster, I'm guessing that DRS moves them to get the biggest "bang for the buck" when balancing the load between servers since they do move a lot.
I could set a rule to never move those VMs but that seems to defeat the purpose of the rules function. But, if I did that, would HA still bring the VM's up if a host crashes?
Thanks in advance.
We had the same problem with three servers in a seperation group.
When talking to support: seperation only works with two VM's.
you will have to make the following rules to achieve what you want:
seperate 1 & 2
seperate 2 & 3
seperate 3 & 4
seperate 1 & 3
seperate 1 & 4
seperate 2 & 4