You can configure low disk space thresholds on a datastore to receive an email from vCloud Director when the datastore reaches a specific threshold of available capacity. These warnings alert you to a low disk situation before it becomes a problem.


  1. Click the Manage & Monitor tab and click Provider VDCs in the left pane.
  2. Right-click the provider virtual datacenter name and select Open.
  3. Click the Datastores tab.
  4. Right-click the datastore name and select Properties.
  5. Select the disk space thresholds for the datastore.

    You can set two thresholds, yellow and red. When you set thresholds on a stand-alone datastore, they apply only to that datastore. If you set thresholds on a storage POD, they apply to all datastores in the storage POD. By default, vCloud Director sets the red threshold to 15% of the stand-alone datastore's or POD's total capacity and the yellow threshold to 25% of the stand-alone datastore or POD's total capacity.

    When vCloud Director sends an email alert, the message indicates which threshold was crossed. When a datastore reaches its red threshold, the virtual machine placement engine stops placing virtual machines on the datastore.

    Because the default thresholds on a storage POD are based on the total POD capacity, the thresholds might exceed the capacity of individual datastores within the POD. When setting thresholds on a storage POD, take into account the capacity of each datastore in the POD and set thresholds manually rather than accepting the default threshold configurations.

  6. Click OK.


vCloud Director sets the thresholds for all provider virtual datacenters that use the datastore. vCloud Director sends an email alert when the datastore crosses the threshold.