Path: utzoo!attcan!uunet!decwrl!ucbvax!NIC.GAC.EDU!scott
From: scott@NIC.GAC.EDU
Newsgroups: comp.sys.next
Subject: Re: NeXT Religion
Message-ID: <9010022239.AA00278@next-5.gac.edu>
Date: 2 Oct 90 22:39:26 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 20

mmeyer@next.com (Morris Meyer) writes (in reply to message about new DATs):
   Granted once DAT players take off the internals of a DAT player will
   start to drop in price.  That however does not account for the front end
   electonics required to make a solid backup solution.  The Exabyte 8mm
   tape drives go to incredible amounts of effort to get hard error rates
   down to 1e-13 (*).  They put a 500 byte error correction section at
   the end of each 1000 byte segment of data.  In doing so, they can
   correct hundreds of one and two bit errors, as well as completely
   correct a 200 bit long burst error.  All of this costs money.

We could just use the same basic electronics CD players and OD drives
use now, right?  Because they already have something like this, no?
Well, at least WORMs are supposed to, using Solomon-Reed codes, I
believe.  About 50% overhead for ECC.

scott hess
scott@gac.edu
Independent NeXT Developer	(Stuart)
NeXT Campus Consultant		(Not much, really)
GAC Undergrad			(Horrid.  Simply Horrid.  I mean the work!)