From owner-freebsd-stable@FreeBSD.ORG Tue Mar 29 17:20:47 2011 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 07F96106566C for ; Tue, 29 Mar 2011 17:20:47 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 8C5278FC12 for ; Tue, 29 Mar 2011 17:20:46 +0000 (UTC) Received: by fxm11 with SMTP id 11so497507fxm.13 for ; Tue, 29 Mar 2011 10:20:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=6sx4PCb0+oeboo+VL1qiwRtRaLhynpC6fMTa36yk5qM=; b=BC4rEW1P6ePLfUsV95dW+0o5T1QaaMnZU2MWOEXoiprk8/hWE6/oU0VqOjrfIR+P9G 6VrlsfKWWLw6h6NKWnkLAlATE2HnBrIqdzkmcKhq416KXu2PCDzSqQsCSt9RadfdXwGk bfcNGm78Ik9WV9Xb5UFLaf6TavCDnAgmMH0BI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=X8JRvJIkJ0eCjwe9zIwhem5EHA6spNa6m7zRDl5X7g4tznP7pPCc9ShurYmUOBs0eC zJXPjhhX3Hh7U3kEPiRTkP/Ja/bKYA8je0zgKbfUX7Y81FzbbO9M8dqK8g7wQQjwY2Ao ZRKHi6Hd4ZG1PuY6GxiDCpElk0ww3NXsXiwwI= MIME-Version: 1.0 Received: by 10.223.13.137 with SMTP id c9mr49107faa.60.1301419245389; Tue, 29 Mar 2011 10:20:45 -0700 (PDT) Received: by 10.223.101.208 with HTTP; Tue, 29 Mar 2011 10:20:45 -0700 (PDT) In-Reply-To: References: <20110328164113.70512us1tv7w5gcg@webmail.leidinger.net> Date: Tue, 29 Mar 2011 12:20:45 -0500 Message-ID: From: Adam Vande More To: Claus Guttesen Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Alexander Leidinger , FreeBSD Stable Subject: Re: zfs, nfs and zil X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 29 Mar 2011 17:20:47 -0000 On Mon, Mar 28, 2011 at 11:46 AM, Claus Guttesen wrote: > I'm aware of that, but the only way the problem shows up is when a > windows machine performs an installation or a windows update (and has > alot of updates in the pipeline). When traffic (i/o) is low to > moderate it justs goes along without any issues. And if the same > virtual windows-installation is on an iscsi-partition (mounted by the > vmware-server) I can't reproduce the problem. So if disabling the zil > did make a difference I would install a dedicated zil-ssd-device. And > if that did alleviate my problem the issue could be related to windows > performing alot of small reads and writes. Hence why I wanted to > disable the zil. > What did someone say about shooting yourself on the foot? http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide#Disabling_the_ZIL_.28Don.27t.29 I don't think you can even disable it on newer versions of ZFS so it may be something of a moot point. -- Adam Vande More