Probably more of a hardware issue but I hope theres been someone seen this before...I have an LTO4 drive in a robot with other LTO4s.
One has now started behaving erratically but doesnt show an error.
It seems its undecided about what sort of drive it is:it advertises itself as HP ultrium lto4, but dont try putting an LTO4 tape in : it gets spat out.
Eventually I tracked this down and on the filer to which it is attached I get this response:
filer> mt -f nrst3a status
Tape drive: Hewlett-Packard LTO-4 :good
Status: offline
Format: LTO-2(ro)/3 2/400GB: not so good.
fileno = -1 blockno = -1 resid = 0
so this goes some way to explain the behaviour. All thats left is to figure out why my drive now thinks it might be an lto2/3 drive having been an lto4 for all of its life so far. It and the robot have both been rebooted to no avail.
The ideal answer would not involve replacing the drive though I feel this may be optimistic.
Your input appreciated, Jim.