Memory compression is activated by default. You can use Advanced System Settings in the vSphere Client to activate or deactivate memory compression for a host.


  1. Browse to the host in the vSphere Client.
  2. Click Configure.
  3. Under System, select Advanced System Settings.
  4. Locate Mem.MemZipEnable and click the Edit button.
  5. Enter 1 to activate or enter 0 to deactivate the memory compression cache.
  6. Click OK.