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RAID Storage Calculator

The most reliable way to find answers for RAID Storage Calculator. Calculate usable space for RAID 0, 1, 5, 6, and 10 arrays. Designed for professionals...

Decision summary

RAID Storage Calculator estimates Usable Capacity (TB), Raw Capacity (TB), Chart from Number of Drives, Drive Size (TB), RAID Type. Use it to compare at least two realistic scenarios, identify which input moves the result most, and decide whether the next step is a quote, professional review, refinance, purchase, or deeper check. Treat the result as a directional planning estimate and verify current prices, rules, rates, and provider terms before acting.

Get deeper options
Change these first: Number of Drives, Drive Size (TB), RAID Type.
Watch these outputs: Usable Capacity (TB), Raw Capacity (TB), Chart.
Sanity check: compare at least two scenarios before using the estimate for a quote, purchase, or planning decision.

How to use this result

What it is for

Use this technology calculator to compare scenarios before committing money, time, or a provider conversation.

Method

The estimate combines Number of Drives, Drive Size (TB), RAID Type and returns Usable Capacity (TB), Raw Capacity (TB), Chart.

Next step

If the result changes your decision, verify the current quote, rate, eligibility rule, or provider term before acting.

RAID Storage Calculator
Logic Verified
Configure parametersUpdated: Feb 2026
Transparent inputs
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Decision support
Estimate first, verify quotes
2 - 1000
- 100000
- 10

Usable Capacity (TB)

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Raw Capacity (TB)

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Chart

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Data

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Value

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Assumptions used
These are the live inputs behind the result. Change one at a time before acting on the estimate.

Number of Drives

4

Drive Size (TB)

4

RAID Type

5

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Expert Analysis & Methodology

RAID Storage Calculator

Visualize space efficiency and data redundancy for different RAID levels.

RAID Levels Explained

RAID 0 (Striping)

  • Pros: Fastest performance. 100% capacity utilization.
  • Cons: Zero redundancy. If one drive fails, all data is lost.
  • Best for: Temporary scratch disks, high-speed rendering.

RAID 1 (Mirroring)

  • Pros: High redundancy. If a drive fails, the copy takes over immediately.
  • Cons: 50% capacity penalty. You pay for 2 drives but get space of 1.
  • Best for: Boot drives, critical databases.

RAID 5 (Striping with Parity)

  • Pros: Good balance. Fast reads. Can survive 1 drive failure.
  • Cons: Slower writes due to parity calculation. Requires minimum 3 drives.
  • Capacity: (N-1) * Size. You lose 1 drive worth of space.

RAID 6 (Double Parity)

  • Pros: Extremely safe. Can survive 2 simultaneous drive failures.
  • Cons: Slower writes. Requires minimum 4 drives.
  • Capacity: (N-2) * Size.

RAID 10 (Nest of Mirrors + Stripes)

  • Pros: Best performance and redundancy. Fast reads/writes.
  • Cons: Expensive. 50% capacity penalty.
  • Best for: High-performance database servers.

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Disclaimer

This calculator is provided for educational and informational purposes only. It does not constitute professional legal, financial, medical, or engineering advice. While we strive for accuracy, results are estimates based on the inputs provided and should not be relied upon for making significant decisions. Please consult a qualified professional (lawyer, accountant, doctor, etc.) to verify your specific situation. CalculateThis.ai disclaims any liability for damages resulting from the use of this tool.