10. Go to Main Menu > Storage & Snapshots > Storage Space .
11. Locate the shared folder that contains the new drive and then verify that the status is Rebuilding.
Recovering Unintentionally Removed Healthy Drives
The NAS supports exclusive RAID recovery technology to recover failed RAID disk volumes from
unintentional disconnection or removal of drives. Users can recover an inactive RAID 1, RAID 5, RAID 6,
RAID 10, RAID 50, RAID 60, triple mirror, and RAID-TP volume from degraded mode.
Disk Volume RAID
Recovery
Support
Number of Disks Maximum Number of Removed Drives
RAID 0 Yes ≥ 2 N/A
RAID 1 Yes 2 1
RAID 5 Yes ≥ 3 1
RAID 6 Yes ≥ 4 2
RAID 10 No ≥ 4 (Must be an even
number)
One or two member drives in two
dierent pairs fail.
RAID 50 Yes ≥ 6 One disk per subgroup fails.
RAID 60 Yes ≥ 8 Two disks per subgroup fail.
Triple Mirror Yes Multiple of 3. (For example,
3, 6, 9, 12 disks and so
forth.)
2
RAID-TP Yes ≥ 5 3
Support and Other Resources
QNAP provides the following resources:
Resource URL
Documentation https://download.qnap.com
Compatibility List https://www.qnap.com/compatibility
NAS Migration Compatibility https://www.qnap.com/go/nas-migration
Expansion Unit Compatibility https://www.qnap.com/go/compatibility-expansion
Service Portal https://service.qnap.com
Product Support Status https://www.qnap.com/go/product/eol.php
Downloads https://download.qnap.com
Community Forum https://forum.qnap.com
QNAP Accessories Store https://shop.qnap.com
TS-hx90FU User Guide
Troubleshooting 62
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