Hi i have addet a second cache drive and now i get this error.

 

Something weird there, pools can't be xfs:

 

 

With array stopped click on cache and set filesystem to brtrfs, if already that set to another then back to btrfs, is still issues after that please post diags.

2 minutes ago, johnnie.black said:

With array stopped click on cache and set filesystem to brtrfs, if already that set to another then back to btrfs

This assuming original cache drive was already btrfs.

the origiinal cache drive was xfs

Hmm - you should not have been able to add a second cache drive if the format is XFS.    BTRFS is mandatory once you have more than 1 drive in the cache.

ok so how can i fix it? 

With array stopped set cache slots back to 1 and leave only original device assigned, it should mount normally.

 

Before doing that grab and post diags, might provide a clue on why it allowed to create a xfs pool.

i have already tried to set the original drive back but it shows the same error.

 

homeserver01-diagnostics-20191121-1826.zip

12 minutes ago, MrYoshii said:

i have already tried to set the original drive back

Yes, but you also need to:

14 minutes ago, johnnie.black said:

With array stopped set cache slots back to 1

 

Looking at the diags you formated the cache when it was unmountable, so since data was deleted anyway and if you still want to create a pool no point in going back to the single device.

yes so ii got it to work now but it only shows 240gb and not 480gb.

By default the pool is a mirror (raid1), but it can be changed.

ok im not sure where i need to add this -dconvert=raid0 -mconvert=raid1

On the main GUI page click on cache and scroll down to the balance window.

got it thx