Article View: comp.sys.next.sysadmin
Article #830Re: Internal SCSI error
From: Dave Olson
Date: Mon, 17 Aug 1992 06:27
Date: Mon, 17 Aug 1992 06:27
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In <1992Aug16.081957.3652@tssnext.rmNUG.ORG> bruce@tssnext.rmNUG.ORG writes:
| Despite much talk over in the MS-DOS World, with the Integrated-Drive-Elect-
| ronics drives (IDE) ``not requiring LLF'', unless the controller re-maps on
| the fly, which is normally an ESDI feature, not found on SCSI drives, the mag-
| netic capacity of the ``tracks'' changes over time, even if no surface defects
| arise to clobber the drive.
This is complete garbage all around. ESDI does not support remapping
of *grown* bad sectors on the fly, period (there may be some controllers
and drivers that do, but the drives do not). Many SCSI drives do;
ALL SCSI hard disk drives support badblock mapping in the drive itself (at
least, I've never heard of one that didn't), I've never seen or heard
of an ESDI drive that did (the driver or controller has to do it).
The magnetic capacity of tracks does not change over time, in the sense
you seem to be indicating.
--
Let no one tell me that silence gives consent, | Dave Olson
because whoever is silent dissents. | Silicon Graphics, Inc.
Maria Isabel Barreno | olson@sgi.com
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Newsgroups: comp.sys.next.sysadmin Path: arc1-ca.pugleaf.net!sparky!uunet!usc!sdd.hp.com!mips!odin!sgihub!zola!zuni!anchor!olson From: olson@anchor.esd.sgi.com (Dave Olson) Subject: Re: Internal SCSI error Message-ID: <om1ktc8@zuni.esd.sgi.com> Sender: news@zuni.esd.sgi.com (Net News) Organization: Silicon Graphics, Inc. Mountain View, CA References: <Aug.10.09.04.03.1992.20063@dartagnan.rutgers.edu> <1992Aug16.081957.3652@tssnext.rmNUG.ORG> Date: Mon, 17 Aug 92 06:27:06 GMT Lines: 20