From owner-freebsd-fs@FreeBSD.ORG Mon Oct 13 21:08:09 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 600D8106568B for ; Mon, 13 Oct 2008 21:08:09 +0000 (UTC) (envelope-from 000.fbsd@quip.cz) Received: from elsa.codelab.cz (elsa.codelab.cz [91.103.162.4]) by mx1.freebsd.org (Postfix) with ESMTP id 1D0F88FC21 for ; Mon, 13 Oct 2008 21:08:09 +0000 (UTC) (envelope-from 000.fbsd@quip.cz) Received: from localhost (localhost.codelab.cz [127.0.0.1]) by elsa.codelab.cz (Postfix) with ESMTP id 1489819E019; Mon, 13 Oct 2008 23:08:08 +0200 (CEST) Received: from [192.168.1.2] (r5bb235.net.upc.cz [86.49.61.235]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by elsa.codelab.cz (Postfix) with ESMTPSA id 0A0AA19E023; Mon, 13 Oct 2008 23:08:06 +0200 (CEST) Message-ID: <48F3B8D6.6060309@quip.cz> Date: Mon, 13 Oct 2008 23:08:38 +0200 From: Miroslav Lachman <000.fbsd@quip.cz> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 X-Accept-Language: cz, cs, en, en-us MIME-Version: 1.0 To: Matt Simerson References: <48F334A0.3080005@quip.cz> <9AAEBB23-75E8-49B2-BA2F-0AF98F79280F@corp.spry.com> In-Reply-To: <9AAEBB23-75E8-49B2-BA2F-0AF98F79280F@corp.spry.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org Subject: Re: ZFS on backup fileserver - RAM usage X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Oct 2008 21:08:09 -0000 Matt Simerson wrote: > > It all depends on your workload. If you work your backup serves hard > (as I do, backing up thousands of OS instances), you'll have > significant reliability problems using FreeBSD 7.1 and ZFS. After a > crash that corrupted my file systems, I have moved to 8-head with > Pawel's latest patch. > > My backup servers have between 16 and 24 disks each. The ones with 16GB > of RAM crash far less frequently than my server that has only 2GB. That > one is getting upgraded soon. > > Matt I am planning to backup about 10-15 servers (mainly webservers and few mailservers) and not expecting high load. Did 8-current with the latest ZFS patch fixed all stability problems? Thanks for suggestions to both of you. Miroslav Lachman