Date: Sat, 03 Dec 2011 17:44:32 +0800 From: darcsis@gmail.com (Denise H. G.) To: lists@midsummerdream.org Cc: freebsd-questions@freebsd.org Subject: Re: AHCI driver and static device names Message-ID: <87hb1ic7lr.fsf@pluton.xbsd.name> In-Reply-To: <4ED98E9F.9010401@midsummerdream.org> (Rob's message of "Fri, 02 Dec 2011 20:51:11 -0600") References: <4ED98E9F.9010401@midsummerdream.org>
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On 2011/12/03 at 10:51, Rob <lists@midsummerdream.org> wrote: > > I was getting ready to install the latest FreeBSD 9-RCs image, and I > found that 9 now defaults to using the ahci driver for sata disks. > This would be great if it weren't for the fact that the ahci driver > seems to do dynamic device name assignment as opposed to the static > ones used with the older drivers. > > I've looked around on google and while this is mentioned (in old > threads), the "solution" is to use labels or elaborate mapping via > hints which really aren't solutions imo. If I have 15 disks in an > array, I want to be able to label them and know which bay is which > device name. If I have to replace a drive, I have no idea what dynamic > device name it will have when it comes time to partition (and label, > if I were using that). I could probably figure it out by looking at > what disks are used on the system, but that's more work that it really > should be. It seems AHCI driver uses static naming policies if you have 'options ATA_STATIC_ID' in your kernel configuration. Anyway, I just have one SATA disk, which the system recognizes as 'ada4'. I don't know whether this will apply in your case. > > Is there a way to use the ahci driver and get static device names? > > Rob > ................ -- The first page the author turns to upon receiving an advance copy will be the page containing the worst error.
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