Hitachi 220H Bios Manual page 125

2. The following window is displayed.
If you set the drive as "global hot spare", check Make Global HSP.
If you set the drive as "dedicated hot spare", click the logical drive to be
protected in the upper right pane, and then check Dedicated HSP.
3. Check Make Global HSP or Make Dedicated HSP, and then click Go.
The drive is set as hot spare.
Hitachi Compute Rack 210H/220H BIOS Guide
MegaRAID WebBIOS 2-61