Date: Mon, 10 Jun 1996 10:26:32 -0500 (CDT) From: Bob Willcox <bob@luke.pmr.com> To: michaelv@HeadCandy.com (Michael L. VanLoon -- HeadCandy.com) Cc: wilko@yedi.iaf.nl, michael@memra.com, hdalog@zipnet.net, dror@hopf.dnai.com, freebsd-scsi@freebsd.org, freebsd-isp@freebsd.org Subject: Re: ERROR info:747d9d asc:11,0 Unrecovered read error, other SCSI issues Message-ID: <199606101526.KAA08933@luke.pmr.com> In-Reply-To: <199606082053.NAA19410@MindBender.HeadCandy.com> from "Michael L. VanLoon -- HeadCandy.com" at "Jun 8, 96 01:52:04 pm"
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Michael L. VanLoon -- HeadCandy.com wrote: > > > >> >Maybe Quantum's engineering does something wierd internally and doesn't > >> >test their drives on a real world activity mix that includes UNIX. > > >As Michael L. VanLoon -- HeadCandy.com wrote... > >> That would be hard to believe, considering that Quantum drives ship in > >> some HP Workstations, among others... > > >And in lots of Digital Equipment machines... > >In general: I have yet to hear of a manufacturer that never has 'junk' > >drive types every now and then. > > That has been my experience also, following these lists and Usenet. > > I think I have heard of bad runs of drives from every major > manufacturer. Especially the ones that try to push the limits, like > newer 7200rpm drives. My experience with Quantum drives has been limited to the LP240S, LP570S, and PD700S drives which I use for testing purposes. (Well, I also own a number of the DEC DSP series drives that are now made by Quantum, but I guess I don't think of them as Quantums.) I will say, that with of these particular models, they are usually the first drives to fail on a heavily loaded SCSI bus with a mix of devices. Seems to be an electrical thing, that they are more picky about bus loading than the other devices I generally use. Fact is, I often take advantage of this ``feature'' of the drives while testing, since I can count on them to intermittantly fail if I load the bus up enough with other devices. :-) -- Bob Willcox bob@luke.pmr.com Austin, TX
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