• 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
.
11.
Optional: Configure SSD over-provisioning.
Over-provisioning reserves a percentage of SSD storage space on each disk in the RAID group to
improve write performance and extend the disk's lifespan. You can decrease the amount of space
reserved for over-provisioning after QTS has created the RAID group.
Tip
To determine the optimal amount of over-provisioning for your SSDs, download and run SSD
Profiling Tool from App Center.
12.
Click
Next
.
13.
Click
Expand
.
A confirmation message appears.
14.
Click
OK
.
15.
Optional: For a RAID 50 or RAID 60 pool, repeat these steps for each sub-group.
QTS starts rebuilding the RAID group. The storage capacity of the pool increases after RAID rebuilding is
finished.
QTS 4.5.x User Guide
Storage & Snapshots
200