Path: utzoo!utgpu!cunews!bnrgate!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request
From: komarnit@tramp.Colorado.EDU (KOMARNITSKY ALEK O)
Newsgroups: comp.sys.sun
Subject: Re: Writing 60MB format tapes on QIC150 drive
Keywords: Hardware
Message-ID: <2733@brchh104.bnr.ca>
Date: 30 Apr 91 23:00:00 GMT
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In article <2687@brchh104.bnr.ca> wlw2286@ultb.isc.rit.edu (W.L. Lance) writes:
>The subject basically says it all. I need to exchange data with someone
>who has a QIC150 drive and I only have the standard 60 Meg drive. What
>parameters does my companion have to with tar to write 60 Meg format
>tapes.

Can't be done (at least to the best of my knowledge, but I'd love to hear
otherwise). I belive the Sun manuals discuss the subject directly, and the
table below summerizes it. Note also that QIC150 requires a different
types of media when writing "150 Meg" tapes. Be interesting to see what
happens when/if QIC525 become popular ...

                "60 Meg" tapes          "150 Meg" tapes
Tape-Drive      Write   Read		Write  Read
QIC24		Yes	Yes		No	No
QIC150		No	Yes		Yes	Yes

Alek Komarnitsky (dumb MBA student), University of Colorado

P.S. The QIC150 drives "autosense" the type of tape at read time. That's
the pause and tape noise one first hears.