Date: Tue, 27 Apr 2010 12:07:13 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: lev@freebsd.org Cc: mav@freebsd.org, freebsd-current@freebsd.org, Pawel Jakub Dawidek <pjd@freebsd.org>, "M. Warner Losh" <imp@bsdimp.com>, freebsd-geom@freebsd.org Subject: Re: Switchover to CAM ATA? Message-ID: <035A6E1D-6537-476B-9427-52072E60C41D@gsoft.com.au> In-Reply-To: <609355278.20100426234808@serebryakov.spb.ru> References: <4BD06BD9.6030401@FreeBSD.org> <20100426.103327.319083499807534535.imp@bsdimp.com> <20100426181209.GB3012@garage.freebsd.pl> <20100426.121946.506212773266921087.imp@bsdimp.com> <20100426191012.GA1711@garage.freebsd.pl> <609355278.20100426234808@serebryakov.spb.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
On 27/04/2010, at 5:18 AM, Lev Serebryakov wrote: > Hello, Pawel. > You wrote 26 =C1=D0=D2=C5=CC=D1 2010 =C7., 23:10:12: >=20 >> You most likely got it right, I'm just saying creating separate GEOM >> class for each metadata format is wrong direction. :) > Does ataraid translations and checksuming (in case of RAID5) now or > it configures chipsets only? >=20 > All these ``raids'' are known as ``soft raids'' or ``fake raids'', > but what does do real work -- BIOS or driver (Ataraid in case of > FreeBSD)? Both.. ataraid does it when FreeBSD is running but the BIOS does it before then = so boot0, the loader, et al can read the disk without having an = underlying driver. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?035A6E1D-6537-476B-9427-52072E60C41D>