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StashRaid

Storage Parameters

Usable Capacity

12 TB

Fault Tolerance

4

Array Resilience

Architecture

RAID 5 • Parity

Fault Tolerance

1 Concurrent Failures Allowed

Current Configuration

RAID 5 (Parity)

12 TB Usable

Total RAW: 16 TB

Disk 01DATA
Disk 02DATA
Disk 03DATA
Disk 04PARITY

Total Drives

4 x 4 TB

Efficiency

75% Utilized

Usable: 12 TBWasted to redundancy: 4 TB

Pros & Cons

  • PRO: Good balance of capacity/speed/safety

  • PRO: Cost-effective redundancy

  • CON: Slower writes due to parity calculation

    This setup prioritizes redundancy but has associated performance or capacity costs.

RAID 10 Calculator

Estimate mirrored capacity and maximize your storage IOPS. Use the RAID 10 calculator above to model striped sets of mirrored drives.

How RAID 10 Capacity Works

RAID 1+0 (or RAID 10) takes sets of mirrored pairs (RAID 1) and stripes the data across them (RAID 0). Because every piece of data must exist in two places, the total usable storage is exactly half of your raw storage.

Why RAID 10 Trades Capacity for Speed

Unlike RAID 5 and RAID 6 which must perform complex math to generate parity blocks, RAID 10 just mirrors the bits. Writing data is phenomenally faster and there is no massive write penalty. Rebuilding a failed drive in RAID 10 is also fast, because it's just a 1:1 disk copy.

When RAID 10 Is the Better Choice

If you are running databases, many virtual machines, or active video editing workloads across standard hard drives, RAID 10 provides the speed you need. See how it stacks up in our RAID level comparison.

RAID 10 FAQ

Why does RAID 10 use half the total capacity?

Because it relies on mirrored drives for redundancy rather than parity. For every drive holding live data, there is a secondary drive completely allocated just to hold an exact copy of the first one.