If a scratch partition is not set up, you might want to configure one, especially if low memory is a concern. When a scratch partition is not present, vm-support output is stored in a ramdisk.


The directory to use for the scratch partition must exist on the host.


  1. From the vSphere Web Client, connect to the vCenter Server.
  2. Select the host in the inventory.
  3. Click the Manage tab.
  4. Select Settings.
  5. Select Advanced System Settings.
    The setting ScratchConfig.CurrentScratchLocation shows the current location of the scratch partition.
  6. In the ScratchConfig.ConfiguredScratchLocation text box, enter a directory path that is unique for this host.
    For example, /vmfs/volumes/DatastoreUUID/DatastoreFolder.
  7. Reboot the host for the changes to take effect.