Thanks for great response!
tar + copy will of course take a long time and be inefficient due to the amount of data. What about rsync? Is there any reason why the normal benefits of rsync over tar+copy would not apply for the BackupPC v4 pool?
Is there anything, any options to the command, to think about when using rsync? (For instance, can I prevent BackupPC to write to the pool during my rsync job is running?)
I will have a look at wireguard. Anyone got a clue of performance compared to openvpn?
"I think he meant making a snapshot then convey it to he's 2nd site. " - yes, I did :)
/Hannes
-------- Original Message --------
Subject: Re: [BackupPC-users] Backing up the BackupPC pool
From: Ray Frush
To: "General list for user discussion, questions and support"
CC:
Hannes-Option 2, Copying the the pool (tar, then copy) to a remote server appears to be viable for small installations, and we've tested that with success. But at a certain point, if you have a lot of machines, and your pool gets large, that process becomes un-manageable. (Our pool is about 3.5TiB for just over 100 hosts backed up). Just tar-ing the data store up takes most of the day.So, Option 1 starts to look more appealing. It may be that your primary instance (local) has a more aggressive retention schedule than the remote copy, or other differences like how frequently backups run.--Ray FrushOn Wed, Aug 9, 2017 at 2:47 PM, Hannes Elvemyr <hanne...@gmail.com> wrote:
Hi!
I'm using BackupPC for all my machines and it's great! I would now like to protect my BackupPC pool somehow (if my BackupPC server crashes, gets stolen or burns up I don't want to loose the data). As I see it, I have at least two options:
1. Run a second instance of BackupPC off-site
This of course creates a new second pool, but that could actually be an advantage if one of them somehow gets corrupted.
Pros: Two independent pools.
Cons: Complicated setup. I need a VPN between my network and the off-site machine to get this to work, which turned out to be more complicated than I first thought (my current router does not support static routing, so a new router would be the first step). I would also need to sync the BackupPC configuration from my main BackupPC instance to the second one (if I change some configuration on my main instance, I would also like the second instance to get that change).
2. Copying the pool and send it off-site
Pros: No need for a second BackupPC instance. Seems to be the easier solution if I can find out how to make a reliable copy of the pool.
Cons: How to copy the pool? The version 4 documentation says that “In V4, since hardlinks are not used permanently, duplicating a V4 pool is much easier, allowing remote copying of the pool.”. Sound great, but how do I know that BackupPC is not reading/writing to the pool during the copying process (maybe some backup is running or BackupPC_Nightly could start doing some cleaning). Copying a large pool over a bad Internet connection could take hours…
Any thought on this? How do you get redundancy of your BackupPC data?
Thanks!
-- /Hannes Elvemyr
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