Dale Worley:
>
> From: Jozef Hitzinger <[EMAIL PROTECTED]>
>
> I'm trying to set up a Sony SDT-9000 DDS-3 tape on Debian 2.1 (2.0.36-3)
> system. 'mt status' reports the tape has DDS density, and 'mt setdensity'
> refuses all values except 0x13 (DDS) and 0 & 127 which have no effect.
>
> How many densities is the drive supposed to support?
AFAIK, DAT tapes do automatic density recognition (they use the
tiny holes in the bottom side of the cartridge). So a DDS-3 drive
will write DDS-1 tapes in the correct manner (so you can read it
in a, say, HP 35480A) and so it does with DDS-2 and -3 too.
Another point is _compression_, which is quite obscure (some
years ago, I tried to find out the meaning of the DIP switches
on top of a DDS-1 drive, there seems to be some correlation to
the OS to be used [!!!] - but HP never explains what they do
in particular...)
Should mt setdens affect compression (and is it possible to activate
and deactivate compression by mt, anyway) ?
Steffen
