If your cluster includes ESXi 5.0 hosts, prevent virtual machines from VMX swapping to the VSA datastores by disabling VMX swapping on each virtual machine that runs in the VSA cluster.

After you upgrade to vSphere 5.1 and VSA 5.1, make sure to reverse these changes to enable VMX swapping for virtual machines.

Power off the virtual machine before you change its settings.

1

In the vSphere Client, right-click a virtual machine from the inventory.

2

Select the Options tab, and under Advanced, select General.

3

Click Configuration Parameters.

The Configuration Parameters window appears.

4

Depending on the VSA version, perform one of the following actions to disable or enable the virtual machine swapping to the VSA datastores.

Option

Action

Disable VMX swapping (VSA 5.0)

a

Click Add Row.

b

Type sched.swap.vmxSwapEnabled for the name and false for the value.

Enable VMX swapping (VSA 5.1)

Change the value for sched.swap.vmxSwapEnabled to true.

5

In the Virtual Machine Properties window, click OK to confirm the changes.

Repeat the steps for all virtual machines in the VSA cluster.