Enable your ESXi host to swap to the host cache. You can also change the amount of space allocated for the host cache.

Use this task if you do not have an appropriate license that allows you to set up and manage a virtual flash resource. If you have the license, use the virtual flash resource for host cache configuration.


Create a flash-backed VMFS datastore. See Create a VMFS Datastore.


  1. Navigate to the host.
  2. Click the Configure tab.
  3. Under Storage, click Host Cache Configuration.
  4. Select the flash datastore in the list and click the Edit icon.
  5. Allocate appropriate space for host cache.
  6. Click OK.