I don't have any experience with autoloaders, so I can't tell you for sure. If 
you backup fits into one tape, put only ISR005 in the autoloader today to 
ensure that amanda will use that tape, and tomorrow you can put ISR006.

You can run "mt -f /dev/st0 compression 0" at boot time to ensure hw comp is 
off.

--
Inaki Sanchez


Rodrigo Ventura wrote:
>>>>>>"Inaki" == Inaki Sanchez <isanchez AT unav DOT es> writes:
> 
> 
>     Inaki> No problem doing amlabel ISR006 right now, amanda will let
>     Inaki> you do the backup in ISR005 or ISR006, it is up to you.
> 
> But how can I choose which?? Amanda handles the autoloader
> automatically, I have no control on what tape goes next.
> 
> Maybe amanda will use amanda CONF slot next to go to the next slot,
> until it satisfies the logical condition ISR005 OR new_tape. But I
> don't know. That's what I'd like to know exactly.
> 
>     Inaki> I don't know which kind of tape you have, but in scsi tapes
>     Inaki> you cat do "mt -f /dev/nst0 compression 0" to turn hw comp
>     Inaki> off.
> 
> Yeah, that command works for me. However, I'm not sure what happens
> when I powercycle the system. I'm not 100% sure the tape will always
> write in non-compression mode, once all labels were written with no
> compression.
> 
> Cheers,
> 
> Rodrigo
>