From owner-freebsd-current Fri Jan 8 02:46:03 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id CAA06055 for freebsd-current-outgoing; Fri, 8 Jan 1999 02:46:03 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from polaris.we.lc.ehu.es (polaris.we.lc.ehu.es [158.227.6.43]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id CAA06032 for ; Fri, 8 Jan 1999 02:46:00 -0800 (PST) (envelope-from jose@we.lc.ehu.es) Received: from we.lc.ehu.es (tiburon [158.227.6.111]) by polaris.we.lc.ehu.es (8.9.1/8.9.1) with ESMTP id LAA09125; Fri, 8 Jan 1999 11:41:22 +0100 (MET) Message-ID: <3695E0D2.2A837D2A@we.lc.ehu.es> Date: Fri, 08 Jan 1999 11:41:22 +0100 From: "José Mª Alcaide" Organization: Universidad del País Vasco - Dept. de Electricidad y Electrónica X-Mailer: Mozilla 4.07 [en] (X11; U; FreeBSD 2.2.8-RELEASE i386) MIME-Version: 1.0 To: Matthew Dillon CC: freebsd-current@FreeBSD.ORG Subject: Re: SOFTUPDATES References: <199901080632.WAA38081@apollo.backplane.com> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Matthew Dillon wrote: > > Softupdates basically gives you the advantage of an async mount without > any of the risks. It's actually better then that - it can unwind commits > to disk before they occur ( e.g. if you create a temporary file and then > delete it very soon after ). Softupdates basically guarentees disk > consistancy in the face of a crash. > > It's pretty well debugged as it stands -- I'd call it production. I don't > think the problem the person who was posting and calling a softupdates > is actually a softupdates problem. I've been using it solidly for a while > and BEST has been using it on their nntp box ( a very heavily loaded box ) > for a few months. > The main problem I see with softupdates is the lack of information. I read the tunefs(8) manpage and I found the "-n" option. However, there is no mention to the need of the SOFTUPDATES kernel option (I bumped into it while reading LINT). I think that a little tutorial about what softupdates is, and how to turn it on, should be very useful for many users (like me :-) ). -- JMA ----------------------------------------------------------------------- José Mª Alcaide | mailto:jose@we.lc.ehu.es Universidad del País Vasco | http://www.we.lc.ehu.es/~jose Dpto. de Electricidad y Electrónica | Facultad de Ciencias - Campus de Lejona | Tel.: +34-946012479 48940 Lejona (Vizcaya) - SPAIN | Fax: +34-944858139 ----------------------------------------------------------------------- "Go ahead... make my day." - H. Callahan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message