From mboxrd@z Thu Jan 1 00:00:00 1970 From: BJ Quinn Subject: Re: Cloning a Btrfs partition Date: Wed, 07 Dec 2011 12:49:43 -0600 (CST) Message-ID: <22fa7cb1-728a-4a3d-a51b-3ff54053380e@mail.placs.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: linux-btrfs@vger.kernel.org To: Freddie Cash Return-path: In-Reply-To: List-ID: >Until an analog of "zfs send" is added to btrfs (and I believe there >are some side projects ongoing to add something similar), your only >option is the one you are currently using via rsync. Well, I don't mind using the rsync script, it's just that it's so slow. I'd love to use my script to "keep up" the backup array, which only takes a couple of hours and is acceptable. But starting with a blank backup array, it takes weeks to get the backup array caught up, which isn't realistically possible. What I need isn't really an equivalent "zfs send" -- my script can do that. As I remember, zfs send was pretty slow too in a scenario like this. What I need is to be able to clone a btrfs array somehow -- dd would be nice, but as I said I end up with the identical UUID problem. Is there a way to change the UUID of an array? -BJ Quinn