By default, Site Recovery Manager checks arrays for changes to device configurations by rescanning arrays every 24 hours. However, you can force an array rescan at any time.

You can reconfigure the frequency with which Site Recovery Manager performs regular array scans by changing the storage.minDsGroupComputationInterval option in Advanced Settings. See Change Storage Settings.

Configuring array managers causes Site Recovery Manager to compute datastore groups based on the set of replicated storage devices that it discovers. If you change the configuration of the array at either site to add or remove devices, Site Recovery Manager must rescan the arrays and recompute the datastore groups.


  1. In the vSphere Client or the vSphere Web Client, click Site Recovery > Open Site Recovery.
  2. On the Site Recovery home tab, select a site pair, and click View Details.
  3. On the Site Pair tab, click Configure > Array Based Replication > Array Pairs.
  4. Select an array pair and click Array Manager Pair > Discover Array Pairs to rescan the arrays, or Discover Devices to recompute the storage devices and consistency groups.
    When you select an array pair, the Array Pairs tab provides detailed information about all the storage devices in the array, including the local device name, the device it is paired with, the direction of replication, the protection group to which the device belongs, whether the datastore is local or remote, and the consistency group ID for each SRA device.