From owner-freebsd-fs@FreeBSD.ORG Sat Feb 8 18:19:35 2014 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7416272D for ; Sat, 8 Feb 2014 18:19:35 +0000 (UTC) Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id E23EB12C4 for ; Sat, 8 Feb 2014 18:19:34 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by woozle.rinet.ru (8.14.5/8.14.5) with ESMTP id s18IJPjs053390; Sat, 8 Feb 2014 22:19:25 +0400 (MSK) (envelope-from marck@rinet.ru) Date: Sat, 8 Feb 2014 22:19:25 +0400 (MSK) From: Dmitry Morozovsky To: Freddie Cash Subject: Re: Using the *real* sector/block size of a mass storage device for ZFS In-Reply-To: Message-ID: References: <1487AF77-7731-4AF8-8E44-FF814BB8A717@ebureau.com> <1391808195.4799.80708189.5CAD8A4E@webmail.messagingengine.com> <8B5D8D0C-ADDE-49B3-87A9-DE1105E32BF9@ebureau.com> <878utmxtum.wl%berend@pobox.com> User-Agent: Alpine 2.00 (BSF 1167 2008-08-23) X-NCC-RegID: ru.rinet X-OpenPGP-Key-ID: 6B691B03 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (woozle.rinet.ru [0.0.0.0]); Sat, 08 Feb 2014 22:19:26 +0400 (MSK) Cc: FreeBSD Filesystems X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 08 Feb 2014 18:19:35 -0000 On Sat, 8 Feb 2014, Freddie Cash wrote: [snip] > I believe there's a sysctl in FreeBSD 10 where you can set the minimum > ashift level so you don't need to use the gnop method. Does not seem so, only the max one: marck@hamster:/FreeBSD> uname -a FreeBSD hamster.wpub.woozle.net 10.0-STABLE FreeBSD 10.0-STABLE #1 r261284: Thu Jan 30 14:06:02 MSK 2014 marck@hamster.wpub.woozle.net:/usr/obj/usr/src/sys/HAMSTER amd64 marck@hamster:/FreeBSD> sysctl -a | grep ashift vfs.zfs.max_auto_ashift: 13 -- Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------