HighPoint RocketRAID 4500 Series User Manual page 16

The Window will show 2 options if create RAID 0: Quick Initialize and Keep Old Data.
Keep Old Data: This is the default option when creating a RAID array.
A. This option is used to assure data safety and avoid operation errors causing
data lose to the original disk.
B. This option does not initialize the array disk. New disks can be used to create
a RAID without initialization since the disk is empty.
C. This option can be used to recover the disabled RAID array.
Quick Init: The RAID array will be immediately accessible.
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