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Cache Pool ZFS - 1 Disk Only. Wring pool size in Unraid GUI

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Hello, 

 

i have a cache pool set up with only one device. I use this to send ZFS Snapshots to the Array. 
At one point I added a mirror device to the pool, mirrored the data and then removed the old device since it was smaller than the new one. 

This worked pretty well. In the command line everything is ok, it shows me a pool with 1 device: 

 

pool: cache
 state: ONLINE
  scan: scrub repaired 0B in 00:01:02 with 0 errors on Thu Mar 14 21:02:19 2024
config:
        NAME         STATE     READ WRITE CKSUM
        cache        ONLINE       0     0     0
          nvme1n1p1  ONLINE       0     0     0

 

However the Unraid GUI has another opinion. 

First of all i cannot tell it that it is a 1 device pool, and then it added a 3rd device, see the screenshots below. 

 

image.thumb.png.fadda6ab6b8aea7dcce44c5f912be72e.png

 

image.thumb.png.c13a14bfcec554497441bcce17463057.png

 

Why are there 3 devices, and why can't I remove tell the Unraid that only 1 device is in this pool. 

Can somebody tell me what I am doing wrong?

 

Would really appreciate some help. Thanks so much. 

Best Regards!

 

 

Edited by Richy1989

Solved by JorgeB

  • Space-Elephant changed the title to Cache Pool ZFS - 1 Disk Only. Wring pool size in Unraid GUI
  • Community Expert
  • Solution

Stop the array, unassign the pool device, start array, stop array, set the pool to one slot, assign the pool device, start array, that should do it.

  • Author
21 minutes ago, JorgeB said:

Stop the array, unassign the pool device, start array, stop array, set the pool to one slot, assign the pool device, start array, that should do it.

 

Can't believe it, the old turn it off and on again ;)
Yes this worked. Thanks you very much! You made my day. Have a great weekend!

Edited by Richy1989

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