Hi all,

I have a cachepool with two discs. sde stopped working so I took it out of the pool (which was in RO mode) and replaced it with the new SSD (again sde). I added the new sde to the pool again and restart the array.

I'm still getting an error (Surprisingly about sdd (had the same error while the pool was running without a second device.)) And I still cannot use shares that use cachepool. I can see the files but it's the read only, I think.

Any ideas what to do?

Please post the diagnostics.

Something very odd is going on with your pool storage size, we need the diagnostics to confirm

Hi, yes something was very wrong. I eventually went another way to solve the issue:

• I backed up all data on the drive as it was still readable

• Moved all data over to the array (mover)

• completely re-initialized the cachepool

But now i realized that the other ssd is in bad shape as well, so I would like to change it. As the cachepool is still fully working, can I just:

• Stop the array. Shutdown

• remove ssd physically from the computer

• Connect the new SSD (would be ssd again)

• Start the array again

Would unraid automatically rebuild the btrfs raid 1 of the cachepool?

Thanks

please post your current system diagnostics

Here you go. THANKS

deheinserver-diagnostics-20260922-1441.zip

Yes to replace a disk in a RAID1 btrfs pool you should follow the steps here in the unraid docs: https://docs.unraid.net/unraid-os/using-unraid-to/manage-storage/cache-pools/#replace-a-disk-in-a-pool

sounds good, thank you!