Daniel J Blueman, Thu, 01 Jul 2010 12:26:10 +0100:
>> What is the correct way to do this?
> 
> The only way to do this preserving duplication is to use hardlinks
> between duplicated files (which reference counts the inode), and use
> 'rsync -H'.
> 
> Dan

But when the files are on different snaphots, does rsync see them as 
hardlinked?

A scenario - I have raid5 of say, 1TB HDDs. It contains many snapshots.
Then, few years later, new machine is bought and there are, say, 5TB 
discs.

So I need to transfer the btrfs volume to the new machine. 

But how to do it so that it looks the *same*, ie. the same snapshots?
I could of course write a custom script to create the subvolume, rsync 
the files, create snapshot, rsync files, etc,

but it would be nice if the btrfs toolset supports this by default...

Lubos

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