Xref: utzoo comp.unix.sysv386:1056 comp.unix.xenix.sco:406
Path: utzoo!attcan!uunet!mcsun!ukc!stl!robobar!ronald
From: ronald@robobar.co.uk (Ronald S H Khoo)
Newsgroups: comp.unix.sysv386,comp.unix.xenix.sco
Subject: Re: Reading DC6150 XENIX 2.3.2 tapes under ODT
Keywords: tape SCSI 150MB
Message-ID: <1990Oct8.131028.20360@robobar.co.uk>
Date: 8 Oct 90 13:10:28 GMT
References: <62912@iuvax.cs.indiana.edu>
Organization: Robobar Ltd., Perivale, Middx., ENGLAND.
Lines: 22

mikes@iuvax.cs.indiana.edu (Michael Squires) writes:

[ about not being able to read DC600 tapes written on his old machine
  on his new one ]

> The drive appears to be installed correctly according to "mkdev scsi" and
> "mkdev tape" (at least it's being recognized).  So far my best guess is that
> I have a defective unit; any other ideas?

If I were you, I'd have *both* drives checked for alignment.  The particular
technology of design for these tape drives makes it nigh impossible to
tell which drive is out of alignment.   I do it by having a "voting" system
consisting of a pile of tapes written on over half a dozen different
systems, and I read every single tape in every single drive I get through.
Many fail and have to be sent home for re-alignment :-(

It's sad.  In this particular area, the IRWIN mini-cartidges are much
better -- they are self-aligning.  Do let us know what happens!

Oh, BTW, is sir-alan up yet ?
-- 
ronald@robobar.co.uk +44 81 991 1142 (O) +44 71 229 7741 (H)