Chapter 9. Raid Recovery - QNAP Turbo NAS TVS-71 Series Hardware User Manual

Chapter 9. RAID Recovery
The QNAP NAS supports recovery of a failed RAID group from unintentional disconnection
or removal of the hard drives from the system.
RAID 5, or RAID 6 group to degraded mode, or an inactive RAID 0 and JBOD configuration
to normal.
Disk volume
Single
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
Follow the steps below to recover an inactive RAID group on the NAS:
1. Make sure the volume status of the RAID group is "Not active".
2. Install the same hard drives, which have been formerly removed from the NAS, back to
the same hard drive slots.
3. Go to "Storage Manager" > "Storage Pools".
group. Click "Manage" > "Recover".
4. Wait for about 1 minute for the process to complete.
be accessed.
Note:
 After recovering a RAID 1, RAID 5, or RAID 6 RAID group from "not active" to degraded
mode by RAID recovery, users can read or write the volume normally.
status will be recovered to normal after synchronization.
 If the disconnected drive member is damaged, the RAID recovery function will not
work.
Supports RAID recovery
No
Yes
Yes
Yes
Yes
Yes
No
Users can recover an inactive RAID 1,
Maximum number of disk
removal a llowed
-
1 or more
1 or more
1 or 2
2 or more
3 or more
-
Select the degraded or inactive RAID
When finished, the NAS data can
The volume