Re: Why optical disks are slow to seek etc...

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Article #12679

#12679

From: Stuart D. Gathman
Date: Tue, 11 Nov 1986 04:25

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In article <586@unccvax.UUCP>, jow@unccvax.UUCP (Jim Wiley) writes:
> winchester.  The killer on the data rate is the 1.33M bits per
						  ^^^^^^^^^^
> second SCSI interface.  I admit the seek time is poor, but SCSI
> seems to me to be a pretty brain damaged way to sacrifice performance

I beg your pardon?

Perhaps you meant 1.33M *bytes* per second.  SCSI is 2 to 4 times faster
than ST506.  ST506 is limited by definition to 5M bits per second.  SCSI
goes 10M to 20M bits per second.  The 20M bps is as good as a high
performance mini.
-- 
Stuart D. Gathman	<..!seismo!{vrdxhq|dgis}!BMS-AT!stuart>

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!vrdxhq!bms-at!stuart

References: <586@unccvax.UUCP>

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!vrdxhq!bms-at!stuart
From: stuart@bms-at.UUCP (Stuart D. Gathman)
Newsgroups: comp.arch,comp.periphs
Subject: Re: Why optical disks are slow to seek etc...
Message-ID: <266@bms-at.UUCP>
Date: Mon, 10-Nov-86 23:25:32 EST
Article-I.D.: bms-at.266
Posted: Mon Nov 10 23:25:32 1986
Date-Received: Tue, 11-Nov-86 06:20:32 EST
References: <586@unccvax.UUCP>
Organization: Business Management Systems, Inc., Fairfax, VA
Lines: 14
Summary: a problem of scale

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