Date: Mon, 10 Aug 2009 20:43:10 +0300 From: Alexander Motin <mav@FreeBSD.org> To: "Julian H. Stacey" <jhs@berklix.com> Cc: freebsd-hardware@FreeBSD.org, freebsd-arch@FreeBSD.org Subject: Re: Do we still need ATA disk CHS addressing? Message-ID: <4A805C2E.8020300@FreeBSD.org> In-Reply-To: <200908101640.n7AGeYH0054650@fire.js.berklix.net> References: <200908101640.n7AGeYH0054650@fire.js.berklix.net>
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Julian H. Stacey wrote: >> Julian H. Stacey wrote: >>>> Have anybody seen ATA drive without LBA support in last years? >>> Yes >> What it is? Some ancient HDD or flash card? > > I run 20+ assorted hosts from 4.11 to 7.2 Uni & Dual proc, i386 (real 386!) > to 686 & amd64, so I guess I'm > A) Pretty vulnerable to legacy scare. > B) A litmus tesst for a wider community of others, some with older kit, > not on lists or with bleeding edge latest hardware, but will > get hit when stuff eg HCS gets declared legacy=dumped. > (hardware@ & arch@ are more likely mostly high enders, > lower percentage of legacy hardware users I guess) Are you administering computer hardware museum? ;) I have tested all drives I have and found none requiring CHS support. Even most ancient 850MB HDD and 16MB CompactFlash card I have support LBA. I have doubts that something even older that this is still working in production and require system there to be upgraded to 8.x. > If I have to pull the lid on 20/25 hosts, to check disk sticky > labels, I will if I must, but could you please reccomend people > syntax to run on 4 5 6 7 RELEASES to check if a host is susceptible ? > (Yes I know 4 is declares dead, but I still have lots of > hosts with it & I suspect quite a lot of others do, > be nice to know if any of those boxes are doomed to only > upgarde to 7 not 8 ) `atacontrol cap adX` can show you if LBA is supported. -- Alexander Motin
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