Date: Fri, 23 Jan 2004 10:22:59 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Peter Risdon <peter@circlesquared.com> Cc: freebsd-questions@freebsd.org Subject: Re: How dangerous is 5.2 for production use Message-ID: <20040123102259.GA47759@happy-idiot-talk.infracaninophile.co.uk> In-Reply-To: <4010EE2E.3050200@circlesquared.com> References: <4010DF2B.1070804@ant.uni-bremen.de> <20040123091337.GA46755@happy-idiot-talk.infracaninophile.co.uk> <4010EE2E.3050200@circlesquared.com>
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On Fri, Jan 23, 2004 at 09:49:34AM +0000, Peter Risdon wrote:
> Matthew Seaman wrote:
=20
> >Certainly. You will find it better suited to the large filesystems
> >you have than UFS1. I also have a vague feeling that background fsck
> >is a UFS2 feature, but I can't find documentation to either confirm or
> >deny that.
> I'm sure this is right. If one of my 5.* machines has an un-clean=20
> shutdown it states that it is starting background fsck checks as it=20
> completes its boot process.
Hmmm... After searching through any number of web pages, I must
conclude that background fsck(8) works on all versions of UFS on 5.x.
Conclusion drawn this way because if it didn't it would be documented
as not working, or there would be any number of messages on mailing
lists asking why doesn't it work? Also, background fsck(8) depends on
the 'snapshotting' feature of UFS, which comes out of the soft-updates
functionality definitely available in both UFS1 and UFS2.
One of these days I really must get my hands on a 5.x system.
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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