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Date: Fri, 25 Mar 2011 16:12:36 +0000
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Subject: Re: How to set tape parameters on freebsd?
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Hi Trond,

On 25/03/11 15:28, Trond Endrestøl wrote:
> Have you tried using /dev/sa0.ctl? E.g.: mt -f /dev/sa0.ctl comp off
Thanks for your answer!
I can confirm, that mt -f /dev/sa0.ctl comp off just works without the 
tape cartdridge loaded.

I'm currently using the same approach that you use (mt before amdump), 
though setting it up only once at boot looks me a cleaner solution 
(unless the drive resets for some reason (electrocity or sas cable) stuff).

Thanks,
   Attila