Replace Cache Pool Drive on 6.12.6 - Read other posts already

[bigdave]

I've read all the other posts I can find on how to replace a failing cache pool drive but they don't seem to work for me.  What I have tried is, run balance, shut down array, replace bad drive with a new drive, start array, I get an error that I can't start the array and that the Cache pool BTRFS missing device(s) even if I try to specify the new drive, it says too many missing and can't start the array. I have two drives and they are in RAID1 at least in the GUI. 

 

What am I missing on how to replace a cache pool drive?  I have both drives in now so if needed I could make it a 3 drive pool.

 

Thanks,

bigdave

 

[JorgeB]

Please post the diagnostics.

[bigdave]

Attached.

unraid-diagnostics-20240122-1404.zip

[JorgeB]

The pool cfg is not correct, to reset the pool unassign both pool devices, start array, stop array, re-assign both pool devices, start array, post new diags

[bigdave]

Will the data on those be safe or should I back them up first?

Edited January 22 by bigdave

[bigdave]

3 hours ago, JorgeB said:

The pool cfg is not correct, to reset the pool unassign both pool devices, start array, stop array, re-assign both pool devices, start array, post new diags

Done. New diag attached.

unraid-diagnostics-20240122-1711.zip

[JorgeB]

Sorry, didn't notice before that the pool is also missing a device:

 

             Data      Metadata System                              
Id Path      RAID1     RAID1    RAID1    Unallocated Total     Slack
-- --------- --------- -------- -------- ----------- --------- -----
 1 /dev/sdm1 287.00GiB  2.00GiB 32.00MiB   642.48GiB 931.51GiB     -
 2 missing   172.00GiB  2.00GiB 32.00MiB   757.48GiB 931.51GiB     -
 3 /dev/sdh1 115.00GiB        -        -   816.51GiB 931.51GiB     -

 

This device is failing to be removed due to errors on one of the remaining ones (sdm), since the pool is not redundant at the moment suggest copying what you can elsewhere and then reformatting the pool.