Apple Workgroup Server 9150 - Manual (Page 10)

Basics RAID Information - 8
If you plan to install the Apple RAID software on an existing
Power Macintosh Workgroup Server, or if you are
reinitializing an existing Apple RAID drive, keep in the mind
the following:
• If you wish to use your server’s startup disk for Apple
RAID, do not install the Apple RAID program on your startup
disk until you have initialized and set up new volumes on
that disk. Before you initialize the startup disk, backup all
valuable data.
• You must reinitialize all disks on which you will use Apple
RAID volumes. Initializing with Apple RAID removes all
data, so be sure to backup your disks first.