User manual

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This function can recover failed RAID disk volumes from the "Inactive" status to the
normal state (RAID 1, RAID 5, RAID 6 and RAID 10 will be recovered to the degraded
mode; RAID 0 and JBOD will be recovered to the normal state.) Before recovering a
failed disk volume, please confirm that all hard disks of that disk volume are properly
seated in the NAS drive bays. Once recovery is completed, back up your data on the
disk(s) immediately in case the disk volume fails again.
Inactive RAID disk volumes can be recovered only if the minimal number of healthy disks
required for the RAID configuration is available on the NAS. For example, in a RAID 5
configuration with three hard disks in the array, at least two healthy hard disk drives
are required available in the NAS for volume recovery. If not, this RAID volume cannot
be recovered. Refer to the following table for the minimal number of hard disks required
to recover each RAID
group:
RAID
group
Minim al num ber of hard disks required for recovery
RAID 1
1
RAID 5
2
RAID 6
2
RAID 10
2
Follow the steps below to recover a failed RAID group:
1. Select a failed RAID group.
2. Click "Manage" > "Recover".
3. The chosen RAID group is recovered.
Creating New Volum es for Storage Pools
To create a new volume for a storage pool, choose a storage pool first and click "New
Volume". Follow the onscreen instructions to finish the creation process. For step
details, please refer to the chapter on Volumes .
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