FAQ - Frequently Asked Questions - Knowledge Base
Can I create multiple RAID arrays?
No, it is only possible to create one type of RAID array, which will include all drives that are currently installed.
As an example, if two drives are installed, they could be set up as RAID 1 array. However, if three or four drives are installed, RAID 1 will not be available and instead they could be set up as RAID 5 array.
It is not possible to create a RAID 1 array with two drives and a RAID 0 array with the other two drives.