Path: utzoo!attcan!sobmips!roe
From: roe@sobeco.com (r.peterson)
Newsgroups: comp.sys.mips
Subject: Re: QIC-120 tapes with dump (was Re: /proc and other questions)
Message-ID: <1990Feb8.055653.4140@sobeco.com>
Date: 8 Feb 90 05:56:53 GMT
References: <1990Jan31.171701.18960@smsc.sony.com>
Organization: Sobeco Group - Montreal, Canada
Lines: 22

From article <1990Jan31.171701.18960@smsc.sony.com>, by dce@smsc.sony.com (David Elliott):
> 
> On this same subject, has anyone calculated Exabyte sizes?  I usually
> just give some huge numbers that figure to more than 1GB, and ignore
> what dump tells me.
> 

We're running exabytes on our M-120.  It took a bit of fudging the
device driver, and a rom upgrade from exabyte, but we can actually get
2.0GB (average) on an exabyte cart.  They are supposed to be good for
2.3GB, but error correction and file marks eat some tape.  You will
probably be much better off _not_ using dump.  Single file restores
can take up to 3 hours from a tape this way - much better to use
something like bru, and use multiple savesets.

BTW - to mips: nice job with the PALS and the exabyte rom change -
more pull than we have here at Sobeco.  We get about 230KBS after
modifying the driver for buffered mode.
-- 
One makes strong assumptions delving	       Roe Peterson
into the beginning of the universe...	       roe@sobeco.com
	- Stephen Hawking, Cambridge           uunet!sobeco!roe