On Wed, Feb 10, 2010 at 10:48:57PM -0600, David Dyer-Bennet wrote:
>  But I see how it could indeed be useful in  
> theory to send just a *little* extra if you weren't sure quite what was  
> needed but could guess pretty closely.

I think it's mostly for the benefit of retrying the same command, if a
send|recv breaks partway (and you're not sure where).   recv is
atomic, but only per dataset/snapshot - not for a whole send -R
stream.

Note it will also break if there are intermediate snapshots missing on
the source, but still on the destination, since it will only skip
incrementals that match what it already has.  recv -F may "help" here.

--
Dan.

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