Real 1/2" mag tape for Sun Sparcs
Hamid Taghavi
optigfx!hamid at uunet.uu.net
Fri May 10 23:03:00 AEST 1991
We have an application that writes directly to a 1/2" tape drive. Up to
now we have used a Xylogics tape controller plugged into a VME bus slot on
a SUN server. The controller provides a Pertec interface to the tape
drive. We are transitioning our products to SPARCStations which do not
have a VME bus. We need to support 1/2" tape drives on these machines.
The Obvious answer is to use a 1/2" tape drive with a SCSI interface, but
it turns out that not all the features and functions that are available on
the Pertec interface are are available over SCSI: for example, from "man
st":
BUGS: SPARCstation 1 does not support ... ..., nor does it support 1/2"
variable record length operations, record space operations, or implied
seeking.
We want a *real* start-stop-tape-driver that works over SCSI, *not* one
that makes a 1/2" drive look like a 1/4" streamer!
Any pointers would be appreciated.
Hamid Taghavi
hamid at optigfx.com
uunet!optigfx!hamid
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