Dell PowerVault MD3200i Owner's Manual - Page 121

Configuring Hot Spare Physical Disks Guidelines to configure host spare physical disks: • You can use only unassigned physical disks with Optimal status as hot spare physical disks. • You can unassign only hot spare physical disks with Optimal, or Standby status. You cannot unassign a hot spare physical disk that has the In Use status. A hot spare physical disk has the In Use status when it is in the process of taking over for a failed physical disk. • If a hot spare physical disk does not have Optimal status, follow the Recovery Guru procedures displayed by the MDSM application to correct any problem before trying to unassign the physical disk. • Hot spare physical disks must be of the same media type and interface type as the physical disks that they are protecting. • If there are secure disk groups and security capable disk groups in the storage array, the hot spare physical disk must match the security capability of the disk group. • Hot spare physical disks must have capacities equal to or larger than the used capacity on the physical disks that they are protecting. • The availability of enclosure loss protection for a disk group depends on the location of the physical disks that comprise the disk group. To make sure that enclosure loss protection is not affected, you must replace a failed physical disk to initiate the copyback process. See "Enclosure Loss Protection" on page 124. CAUTION: If a hot spare physical disk does not have Optimal status, follow the Recovery Guru procedures to correct the problem before you try to unassign the physical disk. You cannot assign a hot spare physical disk if it is in use (taking over for a failed physical disk). To assign or unassign hot spare physical disks: 1 In the AMW, select the Physical tab. 2 Select one or more physical disks. 3 Perform one of these actions: • Select Physical disk Hot Spare Coverage. Configuration: Disk Groups and Virtual Disks 121