DISK Tools

RAID Calculator

Enter the number of physical disks in the RAID array
Enter the capacity of each disk in terabytes
Typical: 50-150 MB/s
Common: 64, 128, 256

RAID Configuration Results

Usable Capacity
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Disk Failure Tolerance
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Estimated Rebuild Time
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Storage Efficiency
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RAID 5 - Distributed Parity
  • Minimum disks: 3
  • Can survive 1 disk failure
  • Good read performance
  • Write performance penalty due to parity
  • Capacity: (N-1) × disk size

Disk Space Calculator

Enter numeric value to convert between storage units

Unit Conversions

Unit Value

Percentage & Space Calculator

Enter total storage capacity in gigabytes
Enter used storage space in gigabytes

Space Analysis

Used Percentage
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Free Space
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IOPS Calculator

Enter input/output operations per second for each disk
Enter number of drives in the array
Enter percentage of operations that are reads, 0 to 100

IOPS Performance

Total Read IOPS
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Total Write IOPS
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Effective Total IOPS
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