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Date:      Tue, 31 Oct 2000 15:40:10 +1100 (EST)
From:      Andy Farkas <andyf@speednet.com.au>
To:        Arun Sharma <adsharma@sharmas.dhs.org>
Cc:        cjclark@alum.mit.edu, freebsd-questions@FreeBSD.ORG
Subject:   Re: softupdates and (avoiding) fsck
Message-ID:  <Pine.BSF.4.21.0010311537470.12722-100000@backup.af.speednet.com.au>
In-Reply-To: <20001029191544.A27575@sharmas.dhs.org>

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> > For more information on what soft updates really does.
> 
> That file doesn't exist in -current anymore. But I found some other
> file, which pointed me to:
> 
> http://www.mckusick.com/softdep/
> 
> which says:
> 
> > By ensuring that the only inconsistencies are unclaimed blocks or
> > inodes, soft updates can eliminate the need to run a filesystem check
> > program after every system crash. Instead, the system is brought up
> > immediately. When it is convenient, a snapshot is taken and a background
> > task can be run on on that snapshot to reclaim any lost blocks and
> > inodes. The use of a snapshot allows normal filesystem activity to
> > continue concurrently.

The key word here is "snapshot".  If you read the next paragraph, it says:

"The snapshot code is in alpha-test in the FreeBSD-current system and
should be available in most BSD systems towards the end of
2000."

> 
> 	-Arun
> 

--
 
 :{ andyf@speednet.com.au
  
        Andy Farkas
    System Administrator
   Speednet Communications
 http://www.speednet.com.au/
  




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