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Note: After changing the RAID mode, create a shared folder.
Configuring a Hot Spare
If you have a hot spare configured and an array fails, the TeraStation immediately switches over to the hot spare. To use a
hot spare, you need an extra drive that’s not part of any array and a RAID 1, RAID 10, RAID 5, RAID 51, RAID 6, or RAID 61
array.
Note: All data on the hot spare drive is deleted when it is configured as a hot spare and again when it changes from
a spare to a drive in the array.
1 In Settings, click Drives.
2 Choose RAID.
3 Choose a RAID array.
4 Click Set as a hot spare.
5 Step through the wizard.
6 When the “Confirm Operation screen opens, enter the confirmation number and click OK.
Notes:
To turn the hot spare back into a normal disk, choose Set as a normal disk.
If a drive fails in the RAID array before it is rebooted, the hot spare will not automatically replace the failed drive.
In this case, follow the steps below to repair the array.
(1) In Settings, navigate to Drives - Drives.
(2) Select the drive that was configured as a hot spare, then click Dismount Disk.
(3) Click Rediscover Disk.
(4) Navigate to Drives - RAID.
(5) Select the RAID array to repair.
(6) Select the drive that was previously configured as a hot spare, then click Recover RAID Array.
This will rebuild the RAID array.
After the hot-spare drive replaces a failed drive and the RAID array finishes rebuilding, the hot-spare drive status
may still show “Hot Spare / Dismounted/ Plugged”. Check the drive status LED. If it has changed from red to blue,
the RAID array has finished rebuilding and is ready for use. This bug will be fixed in a future firmware update.
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