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Raid Calculator Raid 60

RAID 60 Capacity Formula:

\[ \text{Capacity} = \frac{(N - 2M) \times \text{DriveSize}}{\text{Groups}} \]

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1. What is a RAID 60 Calculator?

Definition: This calculator estimates the usable storage capacity in a RAID 60 array based on drive configuration.

Purpose: It helps IT professionals and storage administrators plan their RAID configurations and understand storage efficiency.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \text{Capacity} = \frac{(N - 2M) \times \text{DriveSize}}{\text{Groups}} \]

Where:

Explanation: The formula accounts for the dual parity protection of RAID 6 across multiple groups (RAID 0).

3. Importance of RAID 60 Calculation

Details: Proper capacity planning ensures optimal storage utilization while maintaining redundancy for data protection.

4. Using the Calculator

Tips: Enter the total number of drives, parity drives per group (default 2), drive size in TB, and number of groups (default 2).

5. Frequently Asked Questions (FAQ)

Q1: What is RAID 60?
A: RAID 60 combines RAID 6 (dual parity) with RAID 0 (striping) for both redundancy and performance.

Q2: Why use 2M in the formula?
A: RAID 6 uses two parity drives per group for double fault tolerance.

Q3: What's a typical group size for RAID 60?
A: Common configurations use 6-12 drives per RAID 6 group with 2-4 groups.

Q4: How does this differ from RAID 50?
A: RAID 50 uses single parity (RAID 5) groups, while RAID 60 uses dual parity (RAID 6) groups.

Q5: Does this account for formatting overhead?
A: No, the calculation shows raw capacity before filesystem overhead (typically 5-10% less usable space).

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