RAID Level Descriptions
Although the RAID Controller supports a large variety of RAID Levels, RAID 0 or RAID 3 are most commonly used for video and content creation purpose.
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RAID Level
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Description
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Advantage
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Disadvantage
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Ideal for
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0
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Striping.
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Highest performance.
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No disk redundancy, one drive failure will lose all data.
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Highest resolution HD, 2K, and maximum multiple streams.
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1
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Mirroring.
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Highest redundancy.
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Less cost efficient for redundancy, loses 1/2 disk capacity.
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Data protection is paramount, maximum disk failure protection.
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3
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Striping with a dedicated parity drive.
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Efficient drive redundancy, 1 drive used for parity.
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Loses 1 disk drive capacity.
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Well balanced for video requiring performance and redundancy.
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5
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Striping the parity across all drives.
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Efficient drive redundancy, parity distributed to all drives.
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Loses 1 disk drive capacity.
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Well balanced for file server requiring performance and redundancy.
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6
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Striping with two dedicated parity drives.
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Double drive redundancy, 2 drives used for parity.
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Loses 2 disk drive capacity.
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Mission critical.
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JBOD
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Just a Bunch
of disks.
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Each drive can be accessed individually from operating system.
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No redundancy.
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Audio applications.
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RAID + Spare
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A drive is set aside as an online hot spare.
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Automatic rebuild of a failed drive.
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Loses another drive capacity. (In addition to the drive(s) needed for the RAID level selected.)
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Minimizes degraded RAID level exposure time.
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