Path: utzoo!utgpu!attcan!sobeco!mfp
From: mfp@sobeco.UUCP (Mark F. Proudman)
Newsgroups: comp.sys.att
Subject: Re: QIC capacity on 3B2/x00
Summary: Tape drives on 3B2/x00 - some are QIC 24, but not older 3B2/400's
Keywords: QIC cartridge tape compatibility porting
Message-ID: <319@sobeco.UUCP>
Date: 5 Aug 88 14:20:11 GMT
References: <314@uucsbb.UUCP>
Distribution: na
Organization: Sobeco Group - Montreal, Canada
Lines: 24

In article <314@uucsbb.UUCP>, wgh@uucsbb.UUCP (Bill Hutchison) writes:
> We need to exchange data between an AT&T 3b2/[45]00 and some other UNIX 
> systems via cartridge tape.  The other systems have QIC 45 or QIC 150 drives.
> What standard QIC drives does (if any) does the 3b2 support?

3B2/400's until very recently came only with an (expletive deleted) formatable
tape (I once made a file system on one - just for fun. fsck took hours).  600's
have standard QIC 24 tapes, exchangeable with just about anything else. I have 
seen some newer 400's with what are referred to as "60 Meg SCSI drives" (the old
formatable ones took only 23Meg on a 600 foot tape); whether these are standard
or commonly available I don't know.  I don't have experience with 500's or
700's but AT&T support types have told me that they too are QIC-24.

The only way I ever found to get anything to and from a 3B2/400 was uucp.

>  (And the same question re Sun workstations, if you happen to know).

I have both read and written QIC-24 tapes on Sun 3's; I think the device
was /dev/rst0.  But for some reason I didn't look into /dev/rst8 etc don't
work - or didn't in my case.

Mark Proudman	uunet!attcan!sobeco!mfp
		(514) 878 9090
"It is agreed that the ice is thin here" - K&R.