August 20, 20214 yr Hi all, I am currently doing a trial using the current stable version Unraid 6.9.2. I am not sure if my understanding is correct in this setup: 2 x 2TB disks. 1 to parity and 1 as data disk. Would this be the traditional mirror setup? Supposedly if my data disk fails, I will shutdown the array, replace the disk and do a rebuild from parity? Likewise if my parity disk fails, I will just replace the broken parity disk to be protected again? Many thanks in advance! Edited August 21, 20214 yr by kelt solved
August 20, 20214 yr Community Expert 59 minutes ago, kelt said: Hi all, I am currently doing a trial using the current stable version Unraid 6.9.2. I am not sure if my understanding is correct in this setup: 2 x 2TB disks. 1 to parity and 1 as data disk. Would this be the traditional mirror setup? Supposedly if my data disk fails, I will shutdown the array, replace the disk and do a rebuild from parity? Likewise if my parity disk fails, I will just replace the broken parity disk to be protected again? Many thanks in advance! In the special case of 2 drives they happen to be mirrors because of the way parity is calculated. When you expand beyond 2 drives this is no longer true. However the basic process then is still as you describe for a drive failure where you replace the broken drive and the system then rebuilds the parity/data drive to get you protected again.
August 20, 20214 yr For more details on the Parity protected array : https://wiki.unraid.net/Manual/Overview#Parity-Protected_Array
August 21, 20214 yr Author Thank you all, it works as expected, simulate a disk fail and replaced my disk without any issues. All good!
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