On Wed, Nov 20, 2002 at 10:22:07PM -0500, Gene Heskett wrote:
> On Wednesday 20 November 2002 17:10, Damon Conway wrote:
> >Hello all,
> >I've been wrestling with chg-scsi and my Quantum changer all day. 
> > Here are the specs:
> >
> >Red Hat 8.0 w/ kernel 2.4.18
> >Quantum SuperLoader SDLT 3520L
> >Amanda 2.4.3
> >
> >If I set changerdev to /dev/sg0 and dev to /dev/nst0, I get this:
> >
> ># sudo /usr/local/libexec/chg-scsi -info
> >Can't get ElementStatus
> >#
> >
> >I can't find anything on that error in the list archives,
> > searching Google, or looking in the docs (TAPE.CHANGERS or
> > FAQ-O-MATIC). According to /proc/scsi/sg/device*, /dev/sg0 is
> > "QUANTUM  SuperDLT1 2A2A".  I'm assuming that the error means
> > that it can't talk to the device.
> >
> One thing that can trip up the unwary is that, depending on the 
> drive, the changer robot may be at the same bus address as the 
> drive, but is lun=1 where the drive is lun=0.  Thats the case here 
> at my place.
> 
> The tripup is that the stock kernel dos not AFAIK, do a "scan all 
> luns" at startup, thereby missing the changer robot.  This is an 
> option you may have to turn on and rebuild the kernel to make work 
> if thats the case with your changer.

Ah ha!  This solved the problem.  Thanks.  I'll see about adding
something about this to docs/TAPE.CHANGERS and creating a diff.  Where
does stuff like that get sent?

Thanks,
Damon

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