On the Disks tab in the Management task area, check the status of disks. If a disk is missing, rescan the disk configuration ...

On the Disks tab in the Management task area, check the status of disks. If a disk is missing, rescan the disk configuration to detect the disk. If the disk is still missing, verify physical disk connections and perform Rescan again. If the disk is no longer available, you can remove the disk from the storage pool. To continue protecting the affected data, stop protection of the data sources using the Delete replica option, and then add the data sources to a protection group again.