Lenovo ThinkServer RD240 Software User's Manual page 116

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Figure 4.21 WebBIOS Span Definition Screen
10. Under the heading Array With Free Space, hold <Ctrl> while you
select a drive group with two drives, and click Add to SPAN.
The drive group you select displays in the right frame under the
heading Span.
11. Hold <Ctrl> while you select a second drive group with two drives,
and click Add to SPAN.
Both drive groups display in the right frame under Span.
12. If there are additional drive groups with two drives each, you can add
them to the virtual drive.
13. Click Next.
The Virtual Drive Definition screen appears, as shown in
You use this screen to select the RAID level, stripe size, read policy,
and other attributes for the new virtual drives.
14. Hold <Ctrl> while you select two drive groups with two drives in the
Configuration panel on the right.
WebBIOS Configuration Utility
Figure 4.22.