QNAP TVS-472XT 4-Bay NAS Enclosure - Manual (Page 59)

Status Description
Warning (Rebuilding) One or more RAID groups in the storage pool have the status Degraded
(Rebuilding)
. QTS is currently rebuilding them due to disk failure.
Warning (Read-Only) One or more RAID groups in the storage pool have the status Not Active .
Note
It might be possible to recover some data from volumes and
LUNs.
Storage Pool Expansion
Expanding a Storage Pool by Adding Disks to a RAID Group
The total storage capacity of a storage pool can be expanded by adding one or more additional disks to a
RAID group. This operation can be performed while the pool is online and accessible to users.
Important
• Adding disks to a RAID 1 group changes the RAID type of the group to RAID 5.
• To expand a RAID 50 or RAID 60 group, every sub-group must be expanded with the
same number of disks.
1. Verify the following:
• The storage pool you want to expand contains at least one RAID group of type: RAID 1, RAID 5,
RAID 6, RAID 50 or RAID 60.
• The NAS contains one or more free disks. Each free disk must be the same type as the other disks
in the RAID group (either HDD or SSD), and have a capacity that is equal to or greater than the
smallest disk in the group.
• The status of the RAID group that you want to expand is
Ready
.
2. Go to Storage & Snapshots > Storage > Storage/Snapshots .
3. Select a storage pool.
4. Click Manage.
The Storage Pool Management window opens.
5. Select Expand Pool > Expand Pool .
The Expanding Storage Pool Wizard window opens.
6. Select Add new disk(s) to an existing RAID group.
7. Select a RAID group.
The group must be of type: RAID 1, RAID 5, RAID 6, RAID 50, RAID 60.
8. Click Next.
9. Select one or more disks.
Warning
All data on the selected disks will be deleted.
10. Click Next.
QTS 4.4.x User Guide
Storage & Snapshots 58