From owner-freebsd-questions@FreeBSD.ORG Sun Dec 11 00:41:26 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 12ACA106564A for ; Sun, 11 Dec 2011 00:41:26 +0000 (UTC) (envelope-from rwmaillists@googlemail.com) Received: from out2.smtp.messagingengine.com (out2.smtp.messagingengine.com [66.111.4.26]) by mx1.freebsd.org (Postfix) with ESMTP id D48B68FC13 for ; Sun, 11 Dec 2011 00:41:25 +0000 (UTC) Received: from compute1.internal (compute1.nyi.mail.srv.osa [10.202.2.41]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id AEAC420505 for ; Sat, 10 Dec 2011 19:23:51 -0500 (EST) Received: from frontend1.nyi.mail.srv.osa ([10.202.2.160]) by compute1.internal (MEProxy); Sat, 10 Dec 2011 19:23:51 -0500 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=date:from:to:subject:message-id :in-reply-to:references:mime-version:content-type :content-transfer-encoding; s=smtpout; bh=fQXcs8vzKA5K/A5zY5FuMU veAgg=; b=MDUJQL3BKcF/UyaLmda/tKlGKLDUbiyF0iJfEvaNqdoT21ty9b+1cz Btaypr9ZKsxqOsibr+RAzF/3nQmNqMt8npNWGzOW+HXTnXE4+El/zOZacMR+7XQo yoLPdYZVRC4QYsnHrvkzR1EysolrQ8K6+IduvSFnQ2WqeJ9Il3NZo= X-Sasl-enc: p5vlGBPb37RlH9kbxdAsQObltNE1s3MfcEClF7Aeq8Mt 1323563031 Received: from gumby.homeunix.com (87-194-105-247.bethere.co.uk [87.194.105.247]) by mail.messagingengine.com (Postfix) with ESMTPSA id 134D98E00B8 for ; Sat, 10 Dec 2011 19:23:50 -0500 (EST) Date: Sun, 11 Dec 2011 00:23:48 +0000 From: RW To: freebsd-questions@freebsd.org Message-ID: <20111211002348.56497fde@gumby.homeunix.com> In-Reply-To: <4EE3DA85.4070903@herveybayaustralia.com.au> References: <4EE32BB6.3020105@herveybayaustralia.com.au> <4EE38454.3020307@otenet.gr> <4EE3D1F0.60500@herveybayaustralia.com.au> <4EE3DA85.4070903@herveybayaustralia.com.au> X-Mailer: Claws Mail 3.7.10 (GTK+ 2.24.6; amd64-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: 9.0 install and journaling 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: Sun, 11 Dec 2011 00:41:26 -0000 On Sun, 11 Dec 2011 08:17:41 +1000 Da Rock wrote: > > SUJ speeds up the check a lot, seconds as opposed to minutes. If > > something happens to the journal, it falls back to a standard fsck. > But fsck needs to be run manually- I have users that can't do that, > and the filesystem corrupts. Ergo gjournal; it boots up and fixes on > the fly. So SU+J needs a manual fsck before booting proper or can it > just boot and be done? It's not very different; gjournal and SU both attempt to leave the filesystem in an coherent state, but both still need a preen to recover lost space. In either case the preen can fail requiring a full fsck. Journalled SU make SU behave more like gjournal in that you can do a fast foreground check which avoids the lengthy background fsck and avoids deferring the handling of unexpected inconsistencies to the next boot.