3 × 2 TB in RAID 0: the numbers
| Usable space | 6 TB (5.5 TB in Windows) |
|---|---|
| Raw space | 6 TB |
| Used for protection | Nothing |
| Efficiency | 100% |
| Drives that can fail | None |
Rebuild
RAID 0 cannot rebuild. A failed drive means restoring all 6 TB from a backup. With a typical 1.5% annual failure rate per drive, the chance that one of the 3 drives fails within a year is 4.4%, and within three years 13%.
Our take
Use this only for data you can copy or download again: scratch space, caches, a game library. With the same 3 drives, RAID 5 gives 4 TB and survives a failed drive.