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Knowledge Center

Data Scrubbing

Data scrubbing is a data maintenance feature that inspects storage pools. The following two types of data scrubbing will be performed sequentially:

  • File system scrubbing: This function will check the volumes in the Btrfs file system. If any data inconsistent with the checksum is detected, the system will try to use a backup to repair the data and the file path will be recorded in Log Center.
  • RAID scrubbing: This function can be used with storage pools that implement SHR (comprised of three or more drives), RAID 5, or RAID 6. It can repair any detected data inconsistencies.

We recommend regularly performing data scrubbing to ensure data consistency and avoid data loss in the event of drive failure.

Note:

  • Data Scrubbing cannot be performed when the status of a storage pool is Crashed or Degraded.
  • The system will execute Data Scrubbing automatically if it shuts down abnormally during data writing.

To perform data scrubbing manually:

  1. Launch Storage Manager.
  2. Go to Storage Pool > Data Scrubbing.
  3. Select the storage pool on which to perform data scrubbing.
  4. Click Action > Manual Run.

Note:

  • Data scrubbing can only be performed when the status of the storage pools is Normal.
  • If the system is shut down before data scrubbing is completed, some progress may be lost and you will need to manually restart data scrubbing.