Create an Anti-Affinity Rule for the NSX-T Edge Nodes for an NSX-T Workload Domain

To ensure that the two NSX-Т Edge appliances run on different ESXi hosts in VMware Cloud Foundation, create a vSphere DRS VM-host anti-affinity rule. If a failure occurs on one of the hosts, the appliance on the other host continues providing routing services.

Because you allocate an NSX-T Edge pair to each availability zone, you configure a rule for each zone.

You repeat this procedure twice to create the anti-affinity rules for both availability zones.

Setting	Value for Availability Zone 1	Value for Availability Zone 2
Name	anti-affinity-rule-az1-ecmpedges	anti-affinity-rule-az2-ecmpedges
Enable rule	Selected	Selected
Type	Separate Virtual Machines	Separate Virtual Machines
Members	sfo01wesg01 sfo01wesg02	sfo02wesg01 sfo02wesg02

Procedure

1. In a Web browser, log in to vCenter Server by using the vSphere Client.

   Setting	Value
   URL	https://sfo01m01vc01.sfo01.rainpole.local/ui
   User name	[email protected]
   Password	vsphere_admin_password

2. In the Hosts and Clusters inventory, expand the sfo01w01vc01.sfo01.rainpole.local tree and expand the sfo01-w01dc tree.
3. Select the sfo01-w01-shared01 cluster and click the Configure tab.
4. In the Configuration section, select VM/Host rules and click Add.
5. In the  sfo01-w01-shared01- Create VM/Host rule dialog box, configure the settings for Availability Zone 1 and click Add.

   Setting	Value
   Name	anti-affinity-rule-az1-ecmpedges
   Enable rule	Selected
   Type	Separate Virtual Machines

6. In the Add rule member dialog box, select sfo01wesg01 and sfo01wesg02, and click OK.
7. In the sfo01-w01-shared01- Create VM/Host rule dialog box, click OK.
8. Repeat this procedure to create the anti-affinity rule for Availability Zone 2.