Hitachi 220H Bios Manual page 94

3. The following window is displayed. Click Manual Configuration > Next.
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The existing disk arrays remain as is, when you select Add

Configuration. Add Configuration should be selected when
you want to keep the data in existing disk arrays, and to build
disk arrays using additional disks.
If you click New Configuration, you lose the data in the

existing disk arrays. This should be selected when you discard
the data in the existing disk array and build a new one.
If you click New Configuration, the following window is

displayed first. Click Yes to build new disk array.
MegaRAID WebBIOS
Hitachi Compute Rack 210H/220H BIOS Guide