Site Recovery Manager checks arrays for changes to device configurations every 24 hours. However, you can force an array rescan at any time.
About this task
You can reconfgure the frequency with which Site Recovery Manager preforms regular array scans by changing the storage.minDsGroupComputationInterval option in Advanced Settings. See Change Storage Settings in Site Recovery Manager Administration.
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.