Date: Sun, 01 Jun 2014 08:55:27 -0700 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: freebsd-hackers@freebsd.org, freebsd-fs@freebsd.org Subject: Re: fdisk(8) vs gpart(8), and gnop Message-ID: <538B4CEF.2030801@freebsd.org> In-Reply-To: <3D6974D83AE9495E890D9F3CA654FA94@multiplay.co.uk> References: <20140601004242.GA97224@bewilderbeast.blackhelicopters.org> <CAOjFWZ5N9FGwgSz0_YFNQjavzdJDitRn52VKn4ipW1ddj6-weQ@mail.gmail.com> <BCA9F5D6-3925-4E7E-9082-128652508305@FreeBSD.org> <3D6974D83AE9495E890D9F3CA654FA94@multiplay.co.uk>
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On 06/01/14 08:52, Steven Hartland wrote: > ----- Original Message ----- From: "Mark Felder" <feld@freebsd.org> > >> On May 31, 2014, at 20:57, Freddie Cash <fjwcash@gmail.com> wrote: >> >>> There's a sysctl where you can set the minimum ashift for zfs. Then you >>> never need to use gnop. >>> >>> I believe it's part of 10.0? >> >> I've not seen this yet. What we need is to port the ability to set >> ashift at pool creation time: >> >> $ zpool create -o ashift=12 tank mirror disk1 disk2 mirror disk3 disk4 >> >> I believe the Linux zfs port has this functionality now, but we still >> do not. > > We don't have that direct option yet but you can achieve the > same thing by setting: vfs.zfs.min_auto_ashift=12 > Does anyone have any objections to me changing this default, right now, today? -Nathan
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