14 Feb
2002
14 Feb
'02
1:25 a.m.
On Feb 14, 6:53, Doc wrote:
On Thu, 14 Feb 2002, Zane H. Healy wrote:
> >There are currently 5 DAT formats (DDS, DDS-1, DDS-2, DDS-3, and
DDS-4)
> >and all are backward compatible.
>
> But, can a drive from manufacturer "A" read a DDS-1 tape written on
> manufacturer "B's" drive? It's been my understanding that
sometimes
even
> different model drives from the same manufacturer
can't read the same
tape.
I've never seen that with either 4mm DDS-x or with 8mm DAT formats.
We do classroom loads of RS/6000s from tape quite often, making
tapes on, and installing from, a very wide assortment of drives. I've
never seen a load fail if the drive was rated for the tape format.
Nitpick alert: DDS = DDS-1 (ie, it's the same thing -- originally called
DDS but now sometimes called DDS-1 so that it's clearly not one of the
later versions). So there are only 4 formats, not 5.
Nitpick 2: 8mm is not DDS or DAT. It's Exabyte videotape.
--
Pete Peter Turnbull
Network Manager
University of York