Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!rutgers!bellcore!tness7!petro!swrinde!ut-sally!utah-cs!utah-gr!uplherc!sp7040!obie!wes
From: wes@obie.UUCP (Barnacle Wes)
Newsgroups: comp.sys.atari.st
Subject: Re: Adaptec 4000/4070 controller
Message-ID: <141@obie.UUCP>
Date: 10 Apr 88 18:05:29 GMT
References: <8804062128.AA02500@decwrl.dec.com>
Organization: the Well of Souls
Lines: 22
Summary: RLL for ST?  New drivers, for sure.

In article <8804062128.AA02500@decwrl.dec.com>, heiden@kbomfg.DEC.COM (MATTHIAS HEIDEN, DEC KAUFBEUREN, # 08341/ 913392) writes:
>  Is there any problem with replacing the Adaptec 4000 controller in the SH204
>  by the 4070 model and using an ST506 RLL drive?

I'm sure you'd have to patch or modify the device driver software,
since the RLL disk will have more sectors/track than the standard
ST506.  There was mention of a German magazine article with source to
a hard disk device driver in it a couple of days ago, you might be
able to modify that.

Does anyone know if the current Supra drivers support RLL controllers?

>  What about transfer rate?  Can the ATARI - SCSI interface catch up?

The AHDI part should be a problem, but then only way to tell if your
SCSI->AHDI interface board is fast enough is probably to test it.

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