Date: Fri, 27 Jun 1997 11:35:42 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: abial@korin.warman.org.pl (Andrzej Bialecki) Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Disk built-in hw cache Message-ID: <199706270205.LAA08899@genesis.atrad.adelaide.edu.au> In-Reply-To: <Pine.NEB.3.95.970626173254.9829A-100000@korin.warman.org.pl> from Andrzej Bialecki at "Jun 26, 97 05:37:57 pm"
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Andrzej Bialecki stands accused of saying: > > I just read certain discussion on Linux list concerning > bad/missing/removed disk cache in "repaired" (and sold as new) hard disks. > Linux prints during probing the size of disk cache (at least that what the > hd will tell it). How to achieve the same result in FreeBSD? There is a > #ifdef WDDEBUG flag in wd.c, around some interesting printfs. Will it give > me this info? Uhh, this sounds pretty bogus. Do you have a reference to anything authoratative on the subject? It's probable that some IDE disk vendors allow you to query the cache size using a vendor-specific command, but the thought of "removing" the cache memory from a repaired disk is laughable. The PCBA on a modern disk is worth no more than a few dollars; the _only_ economical means for "reapairing" it would be to throw it away and replace it. > Andrzej Bialecki FreeBSD: Turning PCs Into Workstations -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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