From owner-freebsd-questions@FreeBSD.ORG Tue Aug 8 19:07:24 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 17DF316A4DA for ; Tue, 8 Aug 2006 19:07:24 +0000 (UTC) (envelope-from chad@shire.net) Received: from hobbiton.shire.net (mail.shire.net [166.70.252.250]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6EEF943D5E for ; Tue, 8 Aug 2006 19:07:20 +0000 (GMT) (envelope-from chad@shire.net) Received: from [67.171.127.191] (helo=[192.168.99.68]) by hobbiton.shire.net with esmtpa (Exim 4.51) id 1GAWv9-0002O2-FU; Tue, 08 Aug 2006 13:07:19 -0600 In-Reply-To: References: Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: Content-Transfer-Encoding: 7bit From: "Chad Leigh -- Shire.Net LLC" Date: Tue, 8 Aug 2006 13:07:18 -0600 To: Freminlins X-Mailer: Apple Mail (2.752.2) X-SA-Exim-Connect-IP: 67.171.127.191 X-SA-Exim-Mail-From: chad@shire.net X-SA-Exim-Scanned: No (on hobbiton.shire.net); SAEximRunCond expanded to false Cc: Atom Powers , freebsd-questions@freebsd.org Subject: Re: Large File System? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Aug 2006 19:07:24 -0000 On Aug 8, 2006, at 1:01 PM, Freminlins wrote: > Yes, I had all that. It is of absolutely no use in the event of an > unclean > shutdown (on FreeBSD). If the file system itself is dirty, it will > need to > fsckd. The bigger the file system, the longer it takes (generall). > That is > what journalling saves you. > > To give you some indication of what this means in real life, I'll > refer > (again, sorry) to a power outage we suffered in our colo. This is > FreeBSD on > modern hardware: > > Jul 23 17:52:05 weeble kernel: WARNING: /var was not properly > dismounted > Jul 23 17:55:52 weeble fsck: /dev/aacd0s1f: 1352 files, 956469 used, > 13988364 free (1484 frags, 1748360 > blocks, 0.0% fragmentation) > > I've snipped out the logs in between. But that's nearly 4 minutes > to get > itself sorted out. That file system has only 1.9GB of data. Our > Solaris > boxes came up straight away. Right now, if no fsck is really really important to you for your data store, then get an OpenSolaris system and put ZFS on it. Never fsck again as it is ALWAYS (they claim) in a coherent state. Or wait for ZFS to show up on FreeBSD Not just for the above reasons, I am implementing a Solaris server with 1.7TB on ZFS and sharing it to a bunch of FreeBSD machines over nfs on dedicated gigabit with jumbo frames on separate interfaces from the standard default interface. (My main reason was to not have storage tied to an individual worker server) Chad --- Chad Leigh -- Shire.Net LLC Your Web App and Email hosting provider chad at shire.net