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RAID Calculator

Calculate RAID array capacity, usable space, fault tolerance, and performance for RAID 0, 1, 5, 6, 10, and JBOD configurations.

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RAID Calculator

Configure your RAID array to see usable capacity, fault tolerance, and read/write performance estimates.

RAID Configuration Results

Usable Capacity
Total Raw
Efficiency
Fault Tolerance
Read Speed
Write Speed

RAID Level Comparison

Level Min Disks Fault Tolerance Read Write Best For
RAID 02NoneFastFastSpeed / Temp data
RAID 121 diskFastNormalOS / Boot drive
RAID 531 diskFastMediumFile server / NAS
RAID 642 disksFastSlowerArchive / Critical
RAID 1041 per pairVery FastFastDatabase / VM
JBOD1NoneNormalNormalMax capacity