Did try to do an extended test a while back which failed...
Yes the drive is marked with a red "x" and was unable to run any sort of smart test...
I re-seated the sata cables, booted the array without the disk then restarted the array with the disk.
Currently rebuilding the disk now.
Will launch an extend smart test once it has finished rebuilding.
Cheers
blackpearl-diagnostics-20230718-0946.zip