rescan causes offlined tape to reload

[Matthew Jacob]

On 1/20/2011 9:24 PM, G. Paul Ziemba wrote:
> ....
> # camcontrol rescan all
>
> Jan 20 21:08:40 hairball kernel: (probe4:sym0:0:4:0): TEST UNIT READY. CDB: 0 0 0 0 0 0
> Jan 20 21:08:44 hairball kernel: (probe4:sym0:0:4:0): LOAD UNLOAD. CDB: 1b 0 0 0 3 0
> Jan 20 21:09:34 hairball kernel: sym0:4:control msgout: 80 6.
> Jan 20 21:09:34 hairball kernel: (probe4:sym0:0:4:0): TEST UNIT READY. CDB: 0 0 0 0 0 0
> Jan 20 21:09:34 hairball kernel: (probe4:sym0:0:4:0): INQUIRY. CDB: 12 0 0 0 24 0

Okay, you've proved that the probe code is issuing this. That's wrong. 
Let me chase what has happened here.