User Guide

5. Select a RAID group with the status Error.
6. Click Manage and then select Recover.
The RAID group starts to rebuild.
RAID Scrubbing
RAID scrubbing helps maintain the consistency of data on the NAS. QTS scans the sectors of a RAID 5 or
RAID 6 group and automatically attempts to repair any detected errors. You can run RAID scrubbing
manually, or on a schedule.
Tip
QNAP recommends performing RAID scrubbing at least once a month to maintain system
health and prevent data loss.
Running RAID Scrubbing Manually
Warning
The read/write speeds of the RAID group may decrease while RAID scrubbing is in
progress.
1. Go to Main Menu > Storage & Snapshots .
2. Select a storage pool or single static volume.
Verify that the RAID status is Ready.
3. Click Manage.
4. Select a RAID 5 or RAID 6 group.
5. Click Manage and then select RAID Scrubbing.
The RAID group status changes to Scrubbing.
Running RAID Scrubbing on a Schedule
You can schedule periodic RAID scrubbing of all RAID 5 and RAID 6 groups.
Warning
The read/write speeds of the RAID group may decrease while RAID scrubbing is in
progress.
1. Go to Main Menu > Storage & Snapshots .
2.
Click the Global Settings icon .
The Global Settings menu opens.
3. Enable RAID Scrubbing Schedule.
4. Specify how often data scrubbing will run.
• Daily
• Weekly
• Monthly
QTS 4.3.4 Getting Started Guide
Storage & Snapshots 45