Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!uw-beaver!tektronix!sequent!mntgfx!dclemans
From: dclemans@mntgfx.mentor.com (Dave Clemans)
Newsgroups: comp.sys.atari.st
Subject: Re: Adaptec 4000/4070 controller
Message-ID: <1988Apr18.083245.9443@mntgfx.mentor.com>
Date: 18 Apr 88 15:32:41 GMT
References: <141@obie.UUCP>
Organization: Mentor Graphics Corporation, Beaverton Oregon
Lines: 10

The Supra & ICD drivers both handle RLL disks fine.

The higher bit-rate from a RLL disk only affects the ST-506 -> Adaptec 4070
path, NOT the Adaptec 4070 -> AHDI path; that transfer rate remains the same.
Remember that the Adaptec does local sector buffering.

Regardless all the AHDI adaptors I've seen should be able to handle the full
bandwidth of the ST DMA bus (10 megabits).

dgc