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From: blgardne@javelin.es.com (Blaine Gardner)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Serious problem with Amiga 3000 drives
Message-ID: <1991Feb4.160205.25221@javelin.es.com>
Date: 4 Feb 91 16:02:05 GMT
References: <1991Feb2.114128.1483@dayton.saic.com> <15690@milton.u.washington.edu>
Reply-To: blgardne%javelin@dsd.es.com
Organization: Evans & Sutherland Computer Corporation
Lines: 20

bryant@milton.u.washington.edu (Jonathan Woolsey) writes:

>What is the maximum sustained transfer rate of the
>Amiga 3000's SCSI controller?  I am thinking of
>buying this 700 MB hard drive. . . :) 

I've measured 1.9 megabytes/second on the A3000 with a Fujitsu 1.2
gigabyte drive. This was measured with DiskSpeed 3.1, and using high
intensity with DMA and CPU stress modes had nearly no effect on the
transfer rate. I think it's safe to say that the A3000's controller is
faster than any drive you'll run into.

By comparison: a CDC Wren III got 0.9 megabytes/sec, a Quantum 170S
measured 1.05 megabytes/sec, and an H-P 1 gigabyte drive gave 1.5
megabytes/sec.
-- 
Blaine Gardner @ Evans & Sutherland  580 Arapeen Drive, SLC, Utah 84108
blgardne@javelin.sim.es.com     or   blgardne%javelin@dsd.es.com
...dsd.es.com!javelin!blgardne  or   {decwrl, utah-cs}!esunix!blgardne
DoD #0046   My other motorcycle is a Quadracer.         BIX: blaine_g