Date: Fri, 23 Apr 2010 09:01:53 -0700 From: Freddie Cash <fjwcash@gmail.com> To: FreeBSD-Current <freebsd-current@freebsd.org>, freebsd-geom@freebsd.org Subject: Re: Switchover to CAM ATA? Message-ID: <l2tb269bc571004230901xc0f610e9m10facfa83df8a486@mail.gmail.com> In-Reply-To: <4BD15D23.8090501@fletchermoorland.co.uk> References: <4BD06BD9.6030401@FreeBSD.org> <4BD15D23.8090501@fletchermoorland.co.uk>
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On Fri, Apr 23, 2010 at 1:41 AM, Paul Wootton <paul@fletchermoorland.co.uk>wrote: > Alexander Motin wrote: > >> >> Can we do switchover now, or some more reasons preventing this? >> >> The only thing I miss about the old ATA layer was that I knew that a drive > on a particular controller would always be assigned the same adX number, > whether is was present at boot time, or added days later. This could get a > little messy having ad2, ad4, ad12, ad20 and ad22, but at least if I added a > new drive, it would always attach to say ad8. > > Can this be done on the new CAM ATA? I have not tried it with ATA_CAM, but in theory, you should be able to wire things down the same as with SCSI devices. Just takes a bit of mucking around with camcontrol output, and sticking the right info into /boot/loader.conf. See the man page for camcontrol for all the details. -- Freddie Cash fjwcash@gmail.com
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