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Sanity Check: Parity Check Speed

Arbadacarba
in General Support

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  • Community Expert

Notice [JUPITER] - Parity-Check finished (0 errors)

Duration: 2 days, 2 hours, 22 minutes, 54 seconds. Average speed: 143.4 MB/s

The Array has 7 Data disks and 1 26TB Parity Disk... Does this length of time make sense?

Thanks

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    • Solved by Frank1940

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    • Community Expert
    • Solution

    Yes. This is a disadvantage to large-capacity parity and data disks. Any parity operation will take approximately 2 hours per TB.

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    • Thanks 1
    • Community Expert

    My parity checks run on average around 180MB/s. The array is a mix of 18TB and 16TB drives.

    If you have some smaller capacity drives in your array, 143MB/s seems very reasonable.

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    • Thanks 1

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