From owner-freebsd-hackers  Mon Dec 17 11:11:50 2001
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Date: Mon, 17 Dec 2001 11:11:36 -0800
From: Tim Wiess <twiess@ahaza.com>
To: Terry Lambert <tlambert2@mindspring.com>
Cc: Tony <tony@ubik.demon.co.uk>, Greg Lehey <grog@FreeBSD.ORG>,
	freebsd-hackers@FreeBSD.ORG, Hiten Pandya <hitmaster2k@yahoo.com>
Subject: Re: [SUGGESTION] - JFS for FreeBSD
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References: <20011210220153.50612.qmail@web21102.mail.yahoo.com> <3C15AB82.FDF598A8@mindspring.com> <20011211182856.A67986@monorchid.lemis.com> <JGny5rAjuUH8IwoW@ubik.demon.co.uk> <3C1DC607.7A757837@mindspring.com>
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> >     This doesn't sound any more robust than FreeBSD's current
> >     Softupdates.  JFS wins though as fsck is faster on a reboot ...

Please correct me if I'm wrong. But I heard that Kirk (or perhaps someone else)
is continuing softupdates development with the intent of removing any
dependency for fsck.


> >     Does AIX JFS log any file data?
> 
> Yes (or ratherm, it journals it).  And the EXT3 FS and BSD LFS do the
> same, and so do XFS and VxFS, though the last two do lazy synchronization.

Actually, for the record, XFS only logs file metadata.


> > *  where is a good place to start learning about FreeBSD file systems,
> >    specifically UFS?

Well, if you have a copy of the "Daemon Book", chapters 6 - 8 would probably
be a good place to start. Also, for geneneral FS design I highly recommend
Dominic Giampaolo's book "Practical File System Design".

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