Re: RE Compression usage
2006-07-06 06:10:37
Sorry to be bothersome about this, but will the below work?
Joe Donner wrote:
>
> Thanks for your reply.
>
> do you mean that I will see the behaviour you're describing only if I'm
> reusing tapes with hardware-compressed data? I only have 3 tapes so far,
> so don't mind erasing them.
>
> I find this slightly confusing. My understanding at this stage is that as
> long as I start with "fresh" tapes, and then use mt -f /dev/nst0
> defcompression 0 to switch off hardware compression, I should be OK from
> then onwards? Surely the argument about the tape drive switching into
> compression mode (when fed a hardware-compressed tape) then also works the
> other way round, i.e. when a tape drive has hardware compression enabled,
> and is fed a non-hardware compressed tape, then it won't enable hardware
> compression?
>
> I see that you're saying use stinit, but I've had a look at that and at
> this stage it will only add more complexity to (for me) a rather complex
> situation.
>
> If I could get away with erasing 3 tapes, using mt -f /dev/nst0
> defcompression 0 (maybe add that into crontab for good measure), and it
> all works reasonably well, then I'll be happy for now.
>
> Will appreciate your thoughts and thanks a lot for being so helpful.
>
> Joe
>
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