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Noob-Question on Unraids zfs raidz1

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Hi all

First, this is my first post here, a somewhat fresh Unraid-nooby and old geezer coming from the Syno-land.

So far, i got Unraid to fly pretty easily and my question is as follows:

  • I have 4 disk-box with 4x5TB disk (and 2 nvme in a cachepool in mirror and 1 nvme do not use for the moment).

  • The 4 disks are in my "datapool" in zfs raidz1

Question: where is my parity or such?

pool: datapool
 state: ONLINE
config:

	NAME           STATE     READ WRITE CKSUM
	datapool       ONLINE       0     0     0
	  raidz1-0     ONLINE       0     0     0
	    /dev/sdb1  ONLINE       0     0     0
	    /dev/sdc1  ONLINE       0     0     0
	    /dev/sdd1  ONLINE       0     0     0
	    /dev/sde1  ONLINE       0     0     0

errors: No known data errors

So far so good

NAME         SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP    HEALTH  ALTROOT
datapool    21.8T  2.50T  19.3T        -         -     0%    11%  1.00x    ONLINE  -
  raidz1-0  21.8T  2.50T  19.3T        -         -     0%  11.4%      -    ONLINE
    sdb1    5.46T      -      -        -         -      -      -      -    ONLINE
    sdc1    5.46T      -      -        -         -      -      -      -    ONLINE
    sdd1    5.46T      -      -        -         -      -      -      -    ONLINE
    sde1    5.46T      -      -        -         -      -      -      -    ONLINE

Sorry to have bothered with nooby one, but i somewhat do seem to not get it out of documentations etc.?

br

Solved by simu

  • 2 weeks later...
  • Author

Hi

(I do greet other ppl online - I read that you do not)

I read the doc and I did the same thing as in the video. (Been there, done that), i understand, that z1 is a R5 alike?

Is there no info on paritiy or a parity check function?

br

Edited by simu

  • Author
  • Solution

I actually found this very useful

  • Community Expert
4 hours ago, simu said:

Is there no info on paritiy or a parity check function

This not Unraid specific so you can try googling for results. For instance trying "zfs where is parity held" shows that it is striped across drives, and that there is no direct equivalent to the Unraid Parity Check functionalit as that is handled automatiall as a background activity..

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