Accusys ExaSAN A12S2-PS - Manual (Page 101)

4. How to Use
User Guide Page 4-50
Follow the steps below to select a drive to unlock or change the ID.
Locked drives prevent the accidental loss of user data when drives are installed one at
a time, or a RAID member is accidentally removed while the controller is powered on.
The meta-data and user data on the locked drives are preserved for online/offline
recovery. If users don’t need the data or the locked drive anymore, the locked drive
can be changed into a spare drive by the command of Unlock Drive.
1. Select the drive with the
icon. It will change to the icon.
2. Check the Confirm box and click Unlock Drive.