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From: dantz@cdp.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Dataframe 30 & XP30 difference ??
Message-ID: <67100016@cdp>
Date: Mon, 16-Nov-87 16:34:00 EST
Article-I.D.: cdp.67100016
Posted: Mon Nov 16 16:34:00 1987
Date-Received: Thu, 19-Nov-87 06:40:19 EST
References: <2863@batcomputer.tn.cornell.edu>
Lines: 17
Nf-ID: #R:batcomputer.tn.cornell.edu:2863:cdp:67100016:000:849
Nf-From: cdp.UUCP!dantz    Nov 16 13:34:00 1987


The DataFrame 30s and 60s do use RLL encoding, and yes, SuperMac did have
some problems getting the reliability up to their standards.  They are now
shipping drives that have passed quite rigorous tests ... although the

SuperMac price list contains an "XP upgrade," that is a part for upgrading
20s and 40s to XP.  At this point, there is no path to upgrade a DataFrame
30 to and XP30.  The DataFrame 30s are new, not used, and a desire to be
competitive in the low-end market has dictated the pricing structure more
than anything else.  There is no way to reliably increase the capacity of
existing DataFrames with an RLL controller--SuperMac had enough problems
with drive units that were supposedly RLL qualified.

Larry Zulch, Dantz Software Development

Note: Our publisher is SuperMac and I talk to their technical people
on a regular basis.