Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!hplabs!hp-ses!hpcea!hpldsla!cjames
From: cjames@hpldsla.HP.COM (Craig James)
Newsgroups: comp.sys.hp
Subject: Re: HP9144 cartridge tape drive doesn't stream with HP tape
Message-ID: <3140001@hpldsla.HP.COM>
Date: 15 Jun 89 07:24:06 GMT
References: <234@rdahp.UUCP>
Lines: 17

Scott Hammond writes:

> System: HP9000/300 running HPUX 6.2, with HP9144 Cartridge tape drive

> I noticed something unusual last week.  I was trying the -S 8 option to
> tcio which ...  lets the computer keep up with the tape drive so it can
> stream ... Upon trying it, I discovered it only worked for 3M
> HP-compatible tapes (DC 600HC), and did not work with HP tapes. 

There is a small chance that your tape is from a bad batch.  A year or
two ago HP shipped a few that were formatted wrong, screwing up the
adjacency of various sectors in a way I don't pretend to understand.
These tapes take many, many times longer to do things than good ones.

Perhaps someone else at HP recalls the date codes of these tapes?

Craig James, HP Labs