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Raid


Ximerousgaming

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My Array is not acting as if it's in raid.

 

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Array Devices

Device Identification Temp. Reads Writes Errors FS Size Used Free View

Parity Not installed

Disk 1 WDC_WD10EZEX-00BN5A0_WD-WCC3F4JZ6L90 - 1 TB (sdb) 26 C 10,081 17,216 0 xfs 1000 GB

29.8 GB

970 GB

Browse /mnt/disk1

Disk 2 WDC_WD10EZEX-00BN5A0_WD-WCC3F0TF7JLT - 1 TB (sdc) 27 C 200 32 0 xfs 1000 GB

33.8 MB

1000 GB

Browse /mnt/disk2

Total Array of two devices 26.5 C 10,281 17,248 0 2 TB

29.8 GB

1.97 TB

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Also at the place where you can go into drive files via unraid they are not copies

 

EDIT: Do I need a parity?

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unRAID is not a traditional RAID system!  There is a good write-up in the online documentation on how it is different.

 

One key difference is that all parity information is written to a single drive (with an option for a second parity drive coming in the 6.2 release).  Therefore if you do not have a parity drive your files are not protected against a data drive failing.

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Wait then how does one parity protect multiple drives?

 

I am installing parity right now.

RAID5 does that quite happily, so as such it is not a new concept!  It is just that with RAID5 the parity information is spread across multiple drives rather than a single drive as is the unRAID case.

 

The use of parity in unRAID is discussed in some detail here in the online documentation.

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