Hitachi 220H Bios Manual page 96

5. After selecting all physical drives to build a virtual drive, click Add To Array.
Status of those selected drives is Online that is displayed in the Drive
Groups pane.
6. Click Accept DG.
7. The following window is displayed. Click Next.
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To release a physical drive from [Online], select the drive and click
Reclaim.
MegaRAID WebBIOS
Hitachi Compute Rack 210H/220H BIOS Guide