On 06/14/2017 06:08 PM, Tim Fora wrote:
Hi,
I have BackupPC-3.3.1-5.el6.x86_64 running on a VM (CentOS 6) using
external storage. We have a new storage box now running CentOS 7 with
local disks. I want to install BackupPC on the new box then migrate data
while both are running. What are some options to get this done?
Thanks,
Tim
Hi Tim,
There are three levels you can do this at while keeping both instances
mostly running:
Block level: set up DBRD or similar.
Pool level: rsync your pool (slow) or send your filesystem (if supported).
Latest file level: use something like my script but sacrificing history:
https://johan.ehnberg.net/backuppc-pre-loading-seeding-and-migrating-moving-script
BackupPC does not have a facility to manage clustering though, so you
will not be able to have both instances actively doing backups if you
want to keep the pool.
If your clients are fast and your transfer method supports it, I would
simply set up another instance that runs independently and in parallel,
by only copying the configs to the new instance. Turn off automatic
backups on the old and retire it according to your retention requirements.
Best regards,
Johan Ehnberg
--
Johan Ehnberg
johan AT molnix DOT com
+358503209688
Molnix Oy
molnix.com
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