Path: utzoo!mnetor!uunet!seismo!esosun!ucsdhub!sdsu!uzun
From: uzun@sdsu.UUCP (william uzun)
Newsgroups: comp.sys.amiga
Subject: Re: Amiga 2000 HD Situation
Message-ID: <2858@sdsu.UUCP>
Date: 12 Dec 87 05:34:59 GMT
References: <2855@sdsu.UUCP> <3119@tut.cis.ohio-state.edu>
Organization: San Diego State University, Math/Sciences Dept.
Lines: 19
Keywords: hard disks spam
Summary: Non DMA Saheeb?


The Supra hard disk controller (according to the information I was able
to get from them) is a DMA device.  The ability to read physically contiguous
sectors in a bus which can support the bandwidth (like Zorro II) is a definate
speed advantage.  This is really only true if the FS makes some sort of effort
at keeping files contiguous on the disk like the new FS will supposedly do.
I agree that the new FS will give a much needed boost to HD performance
but any little bit can't hurt.  Considering the cost, the full track buffering
and RLL format characteristics of the Controller (and the fact that according
to their literature it is also a DMA device) I cannot see this controller
drive combination as being in any way inferior to the 2090.  But only time
will tell since I cannot make any conclusive statements until I can do some 
benchmarks on each system.  If they support the same auto boot as 1.21 (that
again is what I am told by Supra) and I get ahold of 1.21 ROMS from CA when
released I for one favor booting from the hard disk, of course again this is
only my preference.


-Roger