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Date: Fri, 21 Oct 2005 02:02:44 +0400
From: "Andrew P." <infofarmer@gmail.com>
To: gayn.winters@bristolsystems.com
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Cc: user <user@dhp.com>, freebsd-questions@freebsd.org
Subject: Re: FreeBSD UFS2 snapshots, and math ...
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On 10/21/05, Gayn Winters <gayn.winters@bristolsystems.com> wrote:
> > -----Original Message-----
> > From: owner-freebsd-questions@freebsd.org
> > [mailto:owner-freebsd-questions@freebsd.org] On Behalf Of Andrew P.
> > Sent: Thursday, October 20, 2005 12:35 PM
> > To: user
> > Cc: freebsd-questions@freebsd.org
> > Subject: Re: FreeBSD UFS2 snapshots, and math ...
>
> > Imagine that each data block is marked with labels
> > on change. It doesn't matter how many labels there
> > are, there will be only one data block saved.
>
> In trying to follow this thread, I started looking around for a precise
> definition of snapshot.
> Man mksnap_ffs
> wasn't too helpful, and googling for "snapshot" etc. wasn't fruitful.
> I'm guessing that the original author of the thread (user at dhp.com)
> may also need such a definition.  Can someone provide a pointer to a
> specification or at least an RFC-like paper?
>
> Thanks,
>
> -gayn
>
>
>

Here ya go: http://www.mckusick.com/softdep/