RAID (redundant array of independent disks) is a way to protect data against disk failures where multiple hard (or SDD) disks are used to protect data in the event of a disk failure. There are a few RAID levels that protects 1:1, 3:2 and more. This online RAID calculator will help you determine amount of storage you can protect with a number of disk drives.
The minimum number of disks in a RAID 10 set is 4 and it must be an even number.
The minimum number of disks in a RAID 50 set is 6 and it must be an even number.
The minimum number of disks in a RAID 60 set is 8.
The minimum number of disks in a RAID 5E set is 4.
The minimum number of disks in a RAID 51 set is 6 and it must be an even number.
The minimum number of disks in a RAID 61 set is 8 and it must be an even number.
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Easily compute total usable space and data protection for your RAID setup. Supports RAID 0, 1, 5, 6, 10, and more with customizable drive sizes and counts.
