Hi, 

I've couple of days ago i added another cache pool with a brand new WD BLACK SN770 2TB disk in it, but struggling to keep it up and running. After a while, it can be 5 mins, or a ocuple of hours, the device gets thrown out of the cachepool with the message "Invalid Path" ... looking at the log of the disk IO error.  I then concluded with a faulty disk, so went back to the store exchanged it for another one, came home, swapped in the new disk again, and 5 minuttes later.    Invalid Path and IO error. 

 

I have tried all the M2 slots now, so its not that, I have no issues with the other SSDS in the server. And the disk always "works" again for a limited period of time after a reboot.      Its a XFS disk btw. 

 

Anyone with the smallest of ideas of what is happening here ? Or is it just that unraid dosnt like WD BLACK SN 770 disks?

Post the diagnostics after the error and before rebooting.

Ended up returning the second disk aswell before i was able to check diags.  

 

Ended up with getting a samsung 990 pro instead, and that seems to work much better, so guess unraid just didnt like the SN 770's

Damn, i spooke to soon, same issue with Samsung 990 PRO aswell, so i guess its not the SSD's fault! it just took longer before it happend. 

 

Unfortunally these diags are from after the rebooot,   but atleast its a lot of errors surrounding the cache disk there aswell, and will remember doing it if neede before rebooting the next time

 

 

enterprise-diagnostics-20231022-1302.zip

The NVMe device is dropping offline, try this, on the main GUI page click on the flash drive, scroll down to "Syslinux Configuration", make sure it's set to "menu view" (top right) and add this to your default boot option, after "append initrd=/bzroot"

nvme_core.default_ps_max_latency_us=0 pcie_aspm=off

e.g.:

append initrd=/bzroot nvme_core.default_ps_max_latency_us=0 pcie_aspm=off

Reboot and see if it makes a difference.

 

Nice one, thanks!

 

Ive added it in and rebootet  crossing my fingers!