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What is the minimum number of drives needed to create a RAID set?

April 26, 2017create drives minimum needed raid

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What is the minimum number of drives needed to create a RAID set?

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This is determined by the RAID level being used. For example, RAID level 0 (disk striping) and RAID level 1 (disk mirroring) each require at least 2 hard disk drives. A RAID 5 volume, on the other hand, requires a minimum of 3 drives of equal capacity to configure.

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This is determined by the RAID level being used. For example, RAID level 0 (disk striping) and RAID level 1 (disk mirroring) each require at least 2 hard disk drives. A RAID 5 volume, on the other hand, requires a minimum of 3 drives to configure. The storage capacity of the RAID array will be determined by the smallest drive in the array. For example, if three 120GB drives and one 100GB drive are used to create a RAID volume, all four drives will be treated as 100GB drives for purposes of configuring the RAID. Although it is not an absolute requirement, it is always beneficial for optimum performance and storage capacity to use hard drives that are the same make and model when establishing a RAID volume.