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Focuses_Moments's avatar
Dec 01, 2012

What's redundant? :)

Sorry new here! Installed all fine, I have 2*2TB in RAID 1 configuration.

Raidar tells me I have Redundant, 541MB, 0% of 1845GB used

My question is what is redundant? My guess is it's taken 220.5MB off each disk to use for <ReadyNAS stuff> - any more info anyone can provide? No issue (i think!), just checking - thanks!

1 Reply

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  • StephenB's avatar
    StephenB
    Guru - Experienced User
    Redundant means that even if one disk fails you will still have access to your data.

    In your case (RAID-1), that means your disks are mirrored.

    The NAS (and RAIDar) report the disk space in TiB (1024*1024*1024*1024 is 1 TB). The drive manufacturer uses TB (1000*1000*1000*1000). Similarly for GB (GiB).

    2000 GB is 1863 GiB - that is the biggest reason the storage is less than you are thinking.
    In addition there is an OS partition for the NAS, and some space for snapshots. That accounts for the rest (18 GB).

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