On 3/13/07, Bill Moran <[EMAIL PROTECTED]> wrote:
In response to "Pietro Cerutti" <[EMAIL PROTECTED]>:
> On 3/13/07, Bill Moran <[EMAIL PROTECTED]> wrote:
> > In response to "Pietro Cerutti" <[EMAIL PROTECTED]>:
> >
> > > On 3/13/07, Doug Poland <[EMAIL PROTECTED]> wrote:
> > > >
> > > > On Tue, March 13, 2007 10:10, Bill Moran wrote:
> > > > > In response to "Doug Poland" <[EMAIL PROTECTED]>:
> > > > >
> > > > >> Hello,
> > > > >>
> > > > >> I seem to recall, but cannot find, the limitation on the number of
> > > > >> snapshots allowed on UFS2. Could someone point me in the right
> > > > >> direction please?
> > > > >
> > > > > The handbook has it:
> > > > >
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/snapshots.html
> > > > >
> > > > Thank you very much.
> > > >
> > >
> > > Sorry for joining the thread, but it's raised my curiosity: what's the
> > > reason for this limit?
> >
> > I'm not 100% sure, but I believe it's because snapshot information is stored
> > in the filesystem superblock, and that's all that can fit in the space
> > available in the superblock.
>
> This is the same thing that came to my mind, but in the handbook page I found:
> "Active snapshots are recorded in the superblock so they are
> persistent across unmount and remount operations along with system
> reboots."
>
> 1) what an "active" snapshot is?
I think you're trying too hard to read into this. Active snapshot, as opposed
to a snapshot that has been deleted/unmounted and existed in the past, is what
I took it to mean.
Makes sense.
Thanks!
--
Bill Moran
http://www.potentialtech.com
--
Pietro Cerutti
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