Article View: comp.sys.mac.hardware.storage
Article #50Re: Comparisons of 2-gig AV drives?
From: Joseph Boykin
Date: Mon, 13 Nov 1995 21:15
Date: Mon, 13 Nov 1995 21:15
32 lines
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1537 bytes
In article <101195.12153942962.n@frontier.canrem.com>, Richard Whitehouse
<rwhitehouse@frontier.canrem.com> wrote:
> >The sustained performance is no mystery. Just look at the
> 'Cuda 4LP's specs <http:>//www.seagate.com/sales/cuda/cuda4lp.html>
> >where it states (on the first line no less) that the data rate
> >ranges from 75-120 Mbits/sec. That roughly translates to 7-12 MBytes/sec,
> >sustained.
>
> If it can do a sustained 12 mb/sec, I would be very surprised. I'd
> wager that the real numbers are between 5 and 10 mb/sec.
The number quoted is the *Internal Transfer Rate* -- that's the speed the
on-board controller can deal with data coming off the heads. The
*external* transfer rate, that is, the interface between the disks
on-board controller and the computer (SCSI or Fibre Channel for these
guys) is anywhere from 20 to 200MB/s.
jb
-----
Joseph Boykin
Principal Investigator
Distributed Computing Systems
GTE Laboratories, Inc.
Vice-President of Press Activities
IEEE Computer Society
Internet: boykin@gte.com
Phone: 617-466-2803
FAX: 617-466-2137
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Path: arc1-ca.pugleaf.net!scuba.gte.com!user From: boykin@gte.com (Joseph Boykin) Newsgroups: comp.sys.mac.hardware.storage,comp.periphs.scsi,rec.audio.pro Subject: Re: Comparisons of 2-gig AV drives? Date: Mon, 13 Nov 1995 16:15:47 -0500 Organization: GTE Laboratories Message-ID: <boykin-1311951615470001@scuba.gte.com> References: <101195.12153942962.n@frontier.canrem.com> NNTP-Posting-Host: scuba.gte.com