You can change the percentage of space allocated for host cache or disable the host's ability to swap to host cache.

You must have an SSD-backed datastore in your inventory.

1

Browse to the host in the vSphere Web Client navigator.

2

Click the Manage tab.

3

Under the Storage tab, click Host Cache Configuration.

4

Select the datastore in the list and click the Allocate space for host cache icon.

5

Select a size for the host cache allocation on the drive.

6

To disable the ability for the host to swap to host cache on a per-datastore basis, deselect the Allocate space for host cache check box.

7

Click OK.