QNAP

QuTS hero 5.0.x

Expanding a Storage Pool By Adding a New RAID Group

You can expand the capacity of a storage pool by creating a new RAID group and adding it to the pool. QuTS hero combines the new group with the other RAID groups in the storage pool using striping (RAID 0).

Important:
  • The new RAID group must have the same RAID type as all existing RAID groups in the pool.

  • Adding a RAID group to a pool may change the RAID type of the pool.

The number of required disks for expansion depends on the current RAID type of the specified pool.

Pool RAID Type

Disks Required to Expand Pool

Pool RAID Type After Expansion

RAID 0

≥ 1

RAID 0

RAID 1

2

RAID 10

RAID 5

≥ 3

RAID 50

RAID 6

≥ 4

RAID 60

RAID-TP

≥ 5

RAID-TP

Triple Mirror

Multiple of 3

Triple Mirror

RAID 10

Multiple of 2

RAID 10

RAID 50

≥ 3 for each additional RAID 5 group

RAID 50

RAID 60

≥ 4 for each additional RAID 6 group

RAID 60

  1. Go to Storage & Snapshots > Storage > Storage/Snapshots.
  2. Select a storage pool.
  3. Click Manage.

    The Storage Pool Management window opens.

  4. Select Action > Expand Pool.

    The Expand Storage Pool Wizard opens.

  5. Select Create and add a new RAID group.
  6. Click Next.
  7. Optional: Select an expansion unit from the Enclosure Unit list.
    Important:
    • You cannot select disks from multiple expansion units.

    • If the expansion unit is disconnected from the NAS, the storage pool becomes inaccessible until it is reconnected.

  8. Select one or more disks.
    Warning:

    All data on the selected disks will be deleted.

  9. Click Next.
  10. Review the summary information.
  11. Click Expand.

    A confirmation message appears.

  12. Click OK.

QuTS hero begins expanding the storage pool. The status of the pool changes to Expanding, and then changes back to Ready after expansion is finished.