Is it possible to create multiple sets of RAIDs in D5-300?

The answer is no, because the D5-300 storage device is exclusively meant for RAID 5, meaning that it is possible to creat just one set. RAID failure may occur if multiple RAID sets are created, leading to loss of hard drive data. Current arrays must be deleted before creating new ones, if hard drives need to be added or removed from the current RAID. Data should be backed-up prior to array deletion as this may cause hard drive data to be lost.