Re: [MooseFS-Users] Optimized copy

[Ben T. <bt...@gm...>]

On Wed, Jun 8, 2016 at 10:25 PM, Elliot Finley <efi...@gm...>
wrote:

> mfsmakesnapshot makes a ”real” snapshot (lazy copy, like in case of
> mfsappendchunks) of some object(s) or subtree (similarly to cp -r command).
> It’s atomic with respect to each SOURCE argument separately. If DESTINATION
> points to already existing file, error will be reported unless -o
> (overwrite) option is given. Note: if SOURCE is a directory, it’s copied as
> a whole; but if it’s followed by trailing slash, only directory content is
> copied.
>
> mfsmakesnapshot does a copy-on-write copy... i.e. only the metadata is
> copied.  it happens very quickly.  if your tens of thousands of files are
> all in a single directory tree, just copy the head directory.
>

Thank you Elliot, I think this is exactly what I was looking for.