Hey All,

I'm looking for a sanity check around some issues I've been struggling with.

I'm wondering if I've got a dying SSD that is then causing the HBA to re-scan the connected drives. This is pretty speculative at this point but I'm not sure if that could be a valid issue or not.

Logs are showing I/O error on SDV (12:0:5:0 if I'm reading this correctly), which is one of the drives in my cache pool and then after some time I see a bunch of "Power-on or device reset occurred" for different devices which look to be on the same HBA

I've been chasing this down for a couple weeks, thinking it was an HBA issue but now I managed to catch some more data and I'm hoping someone can finally help me put these issues to rest

Diagnostics attached

unraid-diagnostics-20250723-2101.zip

Try swapping the cables between both cache SSDs and see where the issue follows; alternatively, and better yet, connect both to an onboard SATA controller , so that TRIM can work.