Hitachi Compute Blade 2000 User Manual page 251

You can select only a hard disk whose status is
Unconfigured Good (unused).
To select multiple hard disks, click them while pressing the
Ctrl key.
5 After selecting all hard disks for building a disk array, click Add to Array.
Status of those selected hard disks is Online as shown in the Drives pane.
To release a hard disk from Online, select the hard disk
and click Reclaim.
Click Accept DG. The following screen appears:
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