SOYO SY-KT400 Dragon Ultra User Manual page 127

3. When the capacity of spare disk can' t fit all the RAID 1 or
RAID 0/1 arrays, the spare disk will not take effect when the
arrays are broken.
Duplicating an Array
Duplicating will copy data from the source disk to the target disk to
ensure data consistency on the mirroring array. This operation will be
performed when a failed array member is replaced. Only RAID 1
array and RAID 0/1 array can be duplicated.
To duplicate an array, follow these steps:
1. Click Configuration - > Duplicate in the main window, the
Duplicate window appears.
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