Hot Spare

Hot spare drives are standby drives that can repair a degraded storage pool by automatically replacing a failed drive. Hot spare drives can be globally assigned to protect any storage pool within your DiskStation, as long as the storage pool matches the following criteria:

To set up hot spare drives:

  1. Click Manage.
  2. A dialog appears, displaying the hot spare status of each storage pool, as well as available drives. Storage pool status includes the following:
  3. The Available Drives section displays drives that can be assigned as hot spare drives. To assign a hot spare drive, tick the box next to the drive you wish to assign as a hot spare.
  4. Click Apply to save the settings.

Note:

To configure hot spare settings for a storage pool:

  1. Click Configure.
  2. In the Storage Pool tab, storage pools that can be protected by hot spare drives will be listed. If you untick the boxes, the corresponding storage pools will not be automatically repaired by hot spare drives when degraded.
  3. In the Cross-device Hot Spare tab, you can allow hot spare drives on one device to repair a degraded RAID located on a different device.
  4. Click OK to save the settings.