Which technology provides the maximum amount of usable storage and resilience for a system with 6 physical volumes?

RAID 0 maximizes usable storage (all 6 disks) but provides zero redundancy, meaning a single disk failure causes total data loss.

RAID 1 mirrors data and yields only 3 disks of usable capacity with 6 drives, wasting 50% of raw storage.

RAID 5 uses striping with distributed parity, yielding N-1 usable disks - five out of six in this case - while tolerating a single disk failure. This gives significantly better storage efficiency than RAID 1 or RAID 6, and unlike RAID 0 it provides meaningful fault resilience, satisfying both requirements simultaneously.

RAID 6 uses double distributed parity, yielding only N-2 usable disks (4 of 6), which is less efficient than RAID 5 while the added resilience does not satisfy the 'maximum usable storage' requirement.