3 × 12 TB in RAID 0

Usable space and the risk of striping for 3 drives of 12 TB each.

3 × 12 TB drives in RAID 0 give 36 TB of usable space, which Windows shows as 32.7 TB. All of it is usable, and none of it is protected. If any one of the drives fails, everything on the array is lost.
TB

Size printed on the drive label. Different sizes? The array uses the smallest one for every drive.

Advanced settings
MB/s

Typical hard drive: 100–200 MB/s with no other load. SSD: 400 MB/s or more.

From the drive datasheet. It is a worst-case spec, so real drives usually do better.

Show capacity in
36TB usable

Array healthy
Your data Parity or mirror copy Failed drive Click a drive to make it fail.
Drawing3 × 12 TB in RAID 0
Raw36 TB
Efficiency100%

Drives that can fail

Rebuild of one drive

Read error during rebuild

Checks for this setup

The same drives in every RAID level

3 drives of 12 TB each.

LevelUsableEfficiencyDrives that can failRebuildRead error in rebuild
36 TB
100%
None
—
—
12 TB
33%
Any 2
22 h
Fixed by another copy
24 TB
67%
Any 1
22 h
17%
Needs at least 4 drives
Needs at least 4 drives
Needs at least 6 drives
Needs at least 8 drives

3 × 12 TB in RAID 0: the numbers

Usable space36 TB (32.7 TB in Windows)
Raw space36 TB
Used for protectionNothing
Efficiency100%
Drives that can failNone

Rebuild

RAID 0 cannot rebuild. A failed drive means restoring all 36 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 24 TB and survives a failed drive.

Similar setups

All RAID 0 setups

Usable space in TB. Pick a cell for the full numbers.
Drives2 TB4 TB6 TB8 TB10 TB12 TB14 TB16 TB18 TB20 TB22 TB24 TB
2 drives4812162024283236404448
3 drives61218243036424854606672
4 drives81624324048566472808896