Repair a Storage Pool

Storage pool errors may occur as a result of a drive failure or other problems. In most cases, you can follow the steps in this article to diagnose and fix the errors.

Note:

Repair a Storage Pool with Failed System Partitions

In the event of a system partition failure, a message will appear informing you that the system can no longer access the system partitions. Please do the following to troubleshoot this issue:

  1. Launch Storage Manager.
  2. Go to the Overview page and click the Repair link. The system should start repairing the system partitions.

Repair a Storage Pool with a Degraded Status

A storage pool becomes Degraded when one or more of its drives becomes defective, but the storage pool remains accessible because no data loss has occurred. You can use the Repair feature to repair a degraded storage pool and return it to a healthy status. Before initiating the repair, please replace the defective drives in the storage pool with healthy ones.

Note:

Drive requirements:

Please replace the defective drives with healthy drives matching the following criteria:

For RAID 1, RAID 5, RAID 6, RAID 10, and RAID F1 storage pools:

For SHR-1 storage pools:
The replacement drive must meet one of the following criteria.

For SHR-2 storage pools:
The replacement drive must meet one of the following criteria.

To repair a degraded storage pool:

Please follow the steps below to repair a degraded storage pool.

  1. Go to Storage Manager > Storage Pool and select the storage pool in Degraded status.
  2. View the storage pool information and check the drive status.
  3. Go to the HDD/SSD page to confirm which drive is defective.
  4. Remove the defective drive from your DiskStation and replace it with a healthy one. If your DiskStation does not support hot-swapping, please power off your device before removing and installing any drives.
    Note: All existing data on the replacement drive will be erased.
  5. After installing the replacement drive, return to the Storage Pool page and select the degraded storage pool.
  6. Select Repair from the Action drop-down menu.
  7. Select the replacement drive to add to the storage pool.
  8. Follow the wizard to finish.

Note:

Troubleshoot a Storage Pool with a Crashed Status

When the status of a storage pool becomes Crashed, you can no longer repair it by yourself. Please refer to the following articles for more information on the common volume crash causes and troubleshooting methods: