/dev/ch0 not recognized

[Justin T. Gibbs]

On 7/8/2010 8:00 AM, Scott Long wrote:

...

> With that note aside, you have to understand how this system works.  It
> doesn't follow the traditional rules of SCSI when it comes to device
> discovery; instead the CISS firmware controls what devices are allowed to
> be seen by the OS.

My hunch on this is that these changers show up as non-zero luns on the
tape device.  Since the ciss driver tells CAM that the max-lun is 0,
the changer device will never be probed.  Even if this were changed,
someone with more knowledge of the ciss_device_address format (i.e.
how to pass through lun information to a physical pass-through device)
would need to step forward so we could support this.

--
Justin