From owner-freebsd-fs  Wed Feb 12 19:41:44 2003
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Date: Wed, 12 Feb 2003 19:40:00 -0800
From: Terry Lambert <tlambert2@mindspring.com>
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To: Darren Pilgrim <dmp@pantherdragon.org>
Cc: Matthew Emmerton <matt@gsicomp.on.ca>,
	David Schultz <dschultz@uclink.Berkeley.EDU>,
	Daxbert <daxbert_news@dweebsoft.com>,
	Bill Moran <wmoran@potentialtech.com>,
	Heinrich Rebehn <rebehn@ant.uni-bremen.de>,
	freebsd-questions@FreeBSD.ORG, freebsd-fs@FreeBSD.ORG
Subject: Re: Why is there no JFS?
References: <3E4A5B77.5080103@ant.uni-bremen.de> <3E4A863E.2030801@potentialtech.com> <3E4A8EF5.1070308@ant.uni-bremen.de> <3E4A9712.8030609@potentialtech.com> <3E4AA331.5040701@ant.uni-bremen.de> <3E4AA734.5040102@potentialtech.com> <045401c2d2db$f9d45c30$0a0aa8c0@dweebsoft.com> <20030212225631.GA10375@HAL9000.homeunix.com> <005801c2d2eb$aa5fae60$1200a8c0@gsicomp.on.ca> <3E4ADDDE.5040208@pantherdragon.org>
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Darren Pilgrim wrote:
> Not really.  A properly laid-out filesystem hierarchy will result in no
> writes to / (except for installworld/kernel).  That removes the problem
> that journalling addresses, and is probably why softupdates is disabled
> by default for /.  For large, active filesystems, journalling would be a
> big improvement when you had to run a foreground fsck.

Soft updates are disable on / by default because of the chicken
and egg problem of runing tunefs on /.

-- Terry

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