User Guide

13. Click OK.
QTS creates the new RAID group, and the RAID group starts rebuilding. The volumes status changes
to Rebuilding...
After expansion is complete, the volume status changes back to Ready.
RAID Management
RAID Spare Disks
Configuring a RAID Group Hot Spare
Assigning a hot spare gives extra protection against data loss. In normal conditions, a hot spare disk is
unused and does not store any data. When a disk in the RAID group fails, the hot spare disk automatically
replaces the faulty disk. QTS copies the data to the spare disk in a process called RAID rebuilding.
1. Go to Main Menu > Storage & Snapshots > Storage/Snapshot .
2. Verify that the NAS contains one or more available disks.
3. Select a storage pool or single static volume.
4. Click Manage.
5. Select a RAID 1, RAID, 5, RAID 6, or RAID 10 group.
6. Select Manage > Configure Spare Drive .
7. Select one or more disks that will be used as spare disks.
8. Click Apply.
Warning
All data on the selected disks will be deleted.
A confirmation message appears.
9. Click OK.
The spare disks are added to the RAID group. The disk appears as a green Spare in the disks summary at
Disks/VJBOD.
Configuring a Global Hot Spare
A global spare disk acts as a hot spare for all RAID groups in a storage device such as a NAS or a
connected expansion unit. In normal conditions, the disk is unused and does not store any data. When a disk
in any RAID group fails, the hot spare disk automatically replaces the faulty disk. QTS copies the data to the
spare disk in a process called RAID rebuilding.
Important
Storage enclosures (the NAS and connected expansion units) cannot share global spare
disks. A unique global hot spare disk must be assigned to each storage enclosure.
1. Go to Main Menu > Storage & Snapshots > Storage/Snapshot .
2. Verify that the NAS contains one or more available disks.
QTS 4.3.4 Getting Started Guide
Storage & Snapshots 41