You can create VM-Host affinity rules to specify whether or not the members of a selected virtual machine DRS group can run on the members of a specific host DRS group.

Create the virtual machine and host DRS groups to which the VM-Host affinity rule applies.

1

Browse to the cluster in the vSphere Web Client navigator.

2

Click the Manage tab.

3

Click Settings and click DRS Rules.

4

Click Add.

5

In the Create DRS Rule dialog box, type a name for the rule.

6

From the Type drop down menu, select Virtual Machines to Hosts.

7

Select the virtual machine DRS group and the host DRS group to which the rule applies.

8

Select a specification for the rule.

Must run on hosts in group. Virtual machines in VM Group 1 must run on hosts in Host Group A.

Should run on hosts in group. Virtual machines in VM Group 1 should, but are not required, to run on hosts in Host Group A.

Must not run on hosts in group. Virtual machines in VM Group 1 must never run on host in Host Group A.

Should not run on hosts in group. Virtual machines in VM Group 1 should not, but might, run on hosts in Host Group A.

9

Click OK.