A disk system is to be constructed using some number of identical disk drives each of which can store up to T terabytes of data. A large database of size 4×T terabytes is to be stored on the disk system. What is the minimum total number of disks that would be required for the system if the disk system is a:
- RAID4 system?
- RAID5 system?
- RAID6 system?
- RAID1 system?
- RAID0 system?