NEC Express5800 Series Maintenance Manual page 156

Chapter 2 Useful Features
14. Select "Start Operation", and press the <Enter> key.
15. The following screen is output, and Reconstruction starts.
156
Important

During Reconstruction, do not shutdown or reboot the server.

Be sure to make backup copy of data and perform Consistency Check
before starting Reconstruction.

You cannot perform Reconstruction on the configuration where several
Virtual Drives are defined in one Drive Group.

Reconstruction can be performed for the degraded or partially degraded
Virtual Drive. However, it is recommended to execute Rebuild to recover
the Virtual Drive, then execute Reconstruction.
Express5800/B120f Maintenance Guide
4. RAID System Configuration