Even though backups have run successfully in the past, they might start failing when the time that the SnapCenter Plug-in for VMware vSphere must wait for the storage system exceeds the configured timeout period. If this condition occurs, you can increase the configured timeout.

You might encounter the error Unable to discover resources on SCV: Unable to get storage details for datastore <xxx>…

Steps

In the VMware vSphere client, click Storage Systems.
On the Storage Systems page, select the storage system to be modified and click Edit.
In the Timeout field, increase the number of seconds.

180 seconds is recommended for large environments.