From: BJ Quinn <bj@placs.net>
To: linux-btrfs@vger.kernel.org
Subject: Cloning a Btrfs partition
Date: Wed, 07 Dec 2011 12:35:42 -0600 (CST) [thread overview]
Message-ID: <d0ff909c-00a0-4f34-a1dc-6be0a8fdd832@mail.placs.net> (raw)
In-Reply-To: <bb747e0c-d6d8-4f60-a3f6-cf64c856515e@mail.placs.net>
I've got a 6TB btrfs array (two 3TB drives in a RAID 0). It's about 2/3 full and has lots of snapshots. I've written a script that runs through the snapshots and copies the data efficiently (rsync --inplace --no-whole-file) from the main 6TB array to a backup array, creating snapshots on the backup array and then continuing on copying the next snapshot. Problem is, it looks like it will take weeks to finish.
I've tried simply using dd to clone the btrfs partition, which technically appears to work, but then it appears that the UUID between the arrays is identical, so I can only mount one or the other. This means I can't continue to simply update the backup array with the new snapshots created on the main array (my script is capable of "catching up" the backup array with the new snapshots, but if I can't mount both arrays...).
Any suggestions?
-BJ Quinn
next parent reply other threads:[~2011-12-07 18:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bb747e0c-d6d8-4f60-a3f6-cf64c856515e@mail.placs.net>
2011-12-07 18:35 ` BJ Quinn [this message]
2011-12-07 18:39 ` Cloning a Btrfs partition Freddie Cash
2011-12-07 18:49 ` BJ Quinn
2011-12-08 15:49 ` Phillip Susi
2011-12-08 16:07 ` BJ Quinn
2011-12-08 16:09 ` Jan Schmidt
2011-12-08 16:28 ` BJ Quinn
2011-12-08 16:41 ` Jan Schmidt
2011-12-08 19:56 ` BJ Quinn
2011-12-08 20:05 ` Chris Mason
2011-12-08 20:38 ` BJ Quinn
2011-12-12 21:41 ` BJ Quinn
2011-12-13 22:06 ` Goffredo Baroncelli
2011-12-30 0:25 ` BJ Quinn
2012-01-12 0:52 ` BJ Quinn
2012-01-12 6:41 ` Chris Samuel
2011-12-08 16:27 ` Stephane CHAZELAS
2011-12-08 10:00 ` Stephane CHAZELAS
2011-12-08 19:22 ` Goffredo Baroncelli
2013-07-29 8:21 Fwd: " Jan Schmidt
2013-07-29 15:32 ` BJ Quinn
2013-07-30 10:28 ` Jan Schmidt
2013-08-19 20:45 ` BJ Quinn
2013-08-20 9:59 ` Xavier Bassery
2013-08-20 15:43 ` BJ Quinn
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