Date: Mon, 2 Jun 2014 09:37:16 -0700 From: Matthew Ahrens <mahrens@delphix.com> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: freebsd-fs <freebsd-fs@freebsd.org>, FreeBSD Hackers <freebsd-hackers@freebsd.org>, Steven Hartland <killing@multiplay.co.uk> Subject: Re: fdisk(8) vs gpart(8), and gnop Message-ID: <CAJjvXiGoLgtso1gq23dvfdqLm%2BVhAVfwA1KoMqncb8gorYWVaA@mail.gmail.com> In-Reply-To: <538C9207.9040806@freebsd.org> References: <20140601004242.GA97224@bewilderbeast.blackhelicopters.org> <CAOjFWZ5N9FGwgSz0_YFNQjavzdJDitRn52VKn4ipW1ddj6-weQ@mail.gmail.com> <BCA9F5D6-3925-4E7E-9082-128652508305@FreeBSD.org> <3D6974D83AE9495E890D9F3CA654FA94@multiplay.co.uk> <538B4CEF.2030801@freebsd.org> <1DB2D63312CE439A96B23EAADFA9436E@multiplay.co.uk> <538B4FD7.4090000@freebsd.org> <CAJjvXiFAX7N-30g0OZ6idqLnyJww5dsyhGfLj6nYwKs9Xp--1g@mail.gmail.com> <538C9207.9040806@freebsd.org>
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On Mon, Jun 2, 2014 at 8:02 AM, Nathan Whitehorn <nwhitehorn@freebsd.org> wrote: > > My bigger concern is this pool upgrade one -- what if someone puts in a 4K > disk in the future? > > We could dynamically change the "effective ashift" by preferring to allocate multiples of 4K. This would involve some work in the space allocator. Again, I don't have time to do this right now but would be happy to mentor someone. --matt
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