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From: jesup@cbmvax.commodore.com (Randell Jesup)
Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.audio
Subject: Re: Query: M.A.S.T., Fujitsu, Large capacity disk drives, DATs
Message-ID: <20120@cbmvax.commodore.com>
Date: 26 Mar 91 04:25:08 GMT
References: <1991Mar6.145948.17848@javelin.es.com> <1991Mar7.191718.8668@digi.lonestar.org> <1991Mar8.085326.27349@evax.arl.utexas.edu>
Reply-To: jesup@cbmvax.commodore.com (Randell Jesup)
Organization: Commodore, West Chester, PA
Lines: 23

In article <1991Mar8.085326.27349@evax.arl.utexas.edu> hill@evax.arl.utexas.edu (Adam Hill) writes:
>  A CDTV developer (Scott Lamb) has a 1.2G MiniScribe and has had no
>problems (Besides formatting - You need a *BIG* bitmap for the initial
>format, A small gotcha). He gets 1.9Megs/sec on a Hardframe. It uses

	The ST1480N gets about 2MB/s through the FS under diskspeed in the
earlier portions of the disk (zone recorded drives get slower on higher
cylinders, since there are less sectors per cylinder).  Nice drive (4400 rpm,
400+MB, 3.5").  I like it.  ;-)

>so much DMA bandwidth in that mode as to "artifact" the screen,
>because the Amiga runs out of DMA time to refresh the screen :-)

	That shouldn't happen!  (Right, dave?)  Screen refresh has higher
priority than most anything, I thought.  (Maybe if they hold the bus too
long...  ah, too much hardware for me. ;-)

-- 
Randell Jesup, Keeper of AmigaDos, Commodore Engineering.
{uunet|rutgers}!cbmvax!jesup, jesup@cbmvax.commodore.com  BIX: rjesup  
Thus spake the Master Ninjei: "To program a million-line operating system
is easy, to change a man's temperament is more difficult."
(From "The Zen of Programming")  ;-)