Re: Planning for subvolumes of subvolumes and btrfs send/receive

[Marc MERLIN <marc@merlins.org>]

On Sun, Apr 20, 2014 at 11:39:22PM -0600, Chris Murphy wrote:
> 
> On Apr 20, 2014, at 1:46 PM, Marc MERLIN <marc@merlins.org> wrote:
> 
> > Can you help me design this right?
> > 
> > Long story short, I'm wondering if I can use btrfs send to copy sub
> > subvolumes (by snapshotting a parent subvolume, and hopefully getting
> > all the children underneath). My reading so far, says no.
> 
> That's my understanding thus far also. Seems like first a recursive read-only snapshot creation is a pre-requisite, since a read-only snapshot is needed first in order to send it.
> 
> I think the seed device method is a better way to do this, though I'm not sure what state its in.

Thank you both for the confirmation.

This indeed makes it too much of a pain for me, so I think I will go
back to making hardlinks like I did with ext4
That way I won't need subvolumes of subvolumes and will be able to do
snapshots and replication more easily.

Thanks,
Marc
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