Date: Sat, 22 Sep 2001 19:46:02 -0700 (PDT) From: Matt Dillon <dillon@earth.backplane.com> To: "David W. Chapman Jr." <dwcjr@inethouston.net> Cc: "Chad R. Larson" <chad@DCFinc.com>, "Daniel O'Connor" <doconnor@gsoft.com.au>, "j mckitrick" <jcm@FreeBSD-uk.eu.org>, <freebsd-stable@FreeBSD.ORG>, "Nuno Teixeira" <nuno.mailinglists@pt-quorum.com> Subject: Re: hw.ata.wc && hw.ata.tags && softupdates short question Message-ID: <200109230246.f8N2k2083827@earth.backplane.com> References: <20010921035414.B75668@dogma.freebsd-uk.eu.org> <XFMail.20010921122607.doconnor@gsoft.com.au> <20010922182052.B16388@freeway.dcfinc.com> <002501c143d0$78fa1b40$fe0c4042@inethouston.net>
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:As pointed out, its believed that IBM uses capacitors to fix this problem.
I'm rather skeptical of this. If someone can point out the article
or technical spec then ok, but otherwise it's just rumor. It would take
a fairly large capacitor to hold the input voltages in spec long enough
to write out the cache.
-Matt
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