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QNAP

QTS 5.0.x

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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 Storage & Snapshots > Storage > Storage/Snapshots.
  2. Select a storage pool or static volume.
  3. Click Manage.
  4. Select a RAID 5 or RAID 6 group.

    The RAID group status must be Ready.

  5. Select Manage > 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 Storage & Snapshots > Storage > 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

  5. Specify when data scrubbing will run.
    Tip:

    QNAP recommends specifying a time when the NAS is not in use, such as after business hours or on weekends.

  6. Click Apply.

Data scrubbing will run according to the specified schedule. When data scrubbing is running on a RAID group, the status of the group changes to Scrubbing.