From owner-freebsd-fs@FreeBSD.ORG Fri Nov 16 18:42:04 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id BFE84CC4 for ; Fri, 16 Nov 2012 18:42:04 +0000 (UTC) (envelope-from lists@eitanadler.com) Received: from mail-lb0-f182.google.com (mail-lb0-f182.google.com [209.85.217.182]) by mx1.freebsd.org (Postfix) with ESMTP id 2CE568FC0C for ; Fri, 16 Nov 2012 18:42:03 +0000 (UTC) Received: by mail-lb0-f182.google.com with SMTP id go10so322228lbb.13 for ; Fri, 16 Nov 2012 10:42:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=eitanadler.com; s=0xdeadbeef; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type; bh=H5piqpFJXYkYp7+DsnDJhERUlUfEcpR5BtFAIzr3kJE=; b=rjxAElzaqsBWTz6x+KibcLvHmGclKcDUi2DHKTOOLq0w7dBPqTKBsSHDHxq3Loenmi jxUdnsx5o9epvRYyHe+J26b6BWtOYSXoAMweL/T/li/SSnGPGgDQBLEA0QTbA/SP4sIq uiLMwl+Bszuh4klgRgYVMRKmk8EZV5LRFojYc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :x-gm-message-state; bh=H5piqpFJXYkYp7+DsnDJhERUlUfEcpR5BtFAIzr3kJE=; b=XfkBWaFmAhSSRDe0ZMZTGHX9Eg12UUMWHXCqYBcI9Vnldi00DGLK/4Zg10qd97eThx kVEJJXUPl1yqd4qDooytXtmAaUhNZXlrUHNGOeIl2Wv42DXOAaqQ9qHHovVRZhEJO3Tc emAJVktpf4cbZF5DsbnXxw2bDPRhVTdNVaaldM2358mSKZ8dcKIO5DAB8v8l94TttZtX O5Pg7H8RW1ysMmDUdmD64REZiRZtHaDQcGoG0Dozg9Xh+YJyBaXeU0nhq/4ZP32X4zPW Ywy70g7AdOVFjalacTBr7uy1iCqrV2+hRub/MdgSH2Cc9yv5euz5enY4wImQ/AYQsgGp jpUQ== Received: by 10.152.104.115 with SMTP id gd19mr5147508lab.13.1353091322607; Fri, 16 Nov 2012 10:42:02 -0800 (PST) MIME-Version: 1.0 Sender: lists@eitanadler.com Received: by 10.112.25.166 with HTTP; Fri, 16 Nov 2012 10:41:32 -0800 (PST) In-Reply-To: <57ac1f$gg70bn@ipmail05.adl6.internode.on.net> References: <57ac1f$gf3rkl@ipmail05.adl6.internode.on.net> <50A31D48.3000700@shatow.net> <57ac1f$gg70bn@ipmail05.adl6.internode.on.net> From: Eitan Adler Date: Fri, 16 Nov 2012 13:41:32 -0500 X-Google-Sender-Auth: Rui3Lb71RJzXHqczMBntU-DDytE Message-ID: Subject: Re: ZFS FAQ (Was: SSD recommendations for ZFS cache/log) To: Stephen McKay Content-Type: text/plain; charset=UTF-8 X-Gm-Message-State: ALoCoQk5rerZzAOk3VfeVAG25vvdZ8mPGYkHiCeVTzck48uL8hFqdWYXKdnUyVgYmOQqh3aMC9ff Cc: FreeBSD FS X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Nov 2012 18:42:04 -0000 On 15 November 2012 23:58, Stephen McKay wrote: > On Thursday, 15th November 2012, Eitan Adler wrote: > >>Can people here please tell me what is wrong in the following content? > > A few things. I'll intersperse them. > >>Is there additional data or questions to add? > > The whole ZFS world desperately needs good documentation. There > are misconceptions everywhere. There are good tuning hints and > bad (or out of date) ones. Further, it depends on your target > application whether the defaults are fairly good or plain suck. New version of the patch taking into account the comments so far: http://people.freebsd.org/~eadler/files/add-zfs-faq-section.diff -- Eitan Adler Source, Ports, Doc committer Bugmeister, Ports Security teams