Hi,

I am replicating through drbd (which is in some way a RAID1 over network). 
My BackupPC Storage is nearly 2TB in size and the connection is only around 
50Mbit/sec.  
Drbd is doing block based so the initial transfer was done through a fast link 
and then placed on off-site. 
To prevent special failures (like an accidentially rm / -rf) drbd is put on top 
of an LVM so I am creating snapshots regulary. 
No issues so far and as the remote server ist configured with backuppc, too I 
can essily restore even the primary Backuppc. 

Christian Völker


> Am 08.07.2015 um 19:48 schrieb Jeff Boyce <jboyce AT meridianenv DOT com>:
> 
> Greetings -
> 
>     I am running BackupPc to backup 8 desktop systems (mostly Windows) 
> in my office to a CentOS 6 VM on my in-house server.  It currently takes 
> about 150GB of storage space.  I would like to replicate (on a daily 
> basis) the backup to an off-site system for disaster recovery purposes.  
> I have searched through the archives and read much discussion about 
> this, which generally concludes that using rsync to replicate the backup 
> is not appropriate.  Tim Massey's post of 2/22/2011 sums up the options 
> pretty clearly.
> 
> * For most people, rsync does not work to replicate a backup server
> effectively.  Period.  I think *no* one would suggest this as a reliable
> ongoing method of replicating a BackupPC server.  Ever.
> 
> * The best methods for this boil down to two camps:
>         1) Run two BackupPC servers and have both back up the hosts
> directly
>                 No replication at all:  it just works.
>         2) Use some sort of block-based method of replicating the data
> 
> * Block-based replication boils down to two methods
>         1) Use md or dm to create a RAID-1 array and rotate members of
> this array in and out
>         2) Use LVM to create snapshots of partitions and dd the partition
> to a different drive
>         (I guess 3) Stop BackupPC long enough to do a dd of the partition
> *without* lVM)
> 
>     My backup pool is located on a separate LVM partition and I have 
> some spare disk space, so I can do LVM snapshots.  But my primary 
> question is that I am looking for recommendations for a 3rd party 
> off-site storage vendor that is set up to accept dd'ing a LVM snapshot 
> to a partitioned space.  I am completely open to all options here, as I 
> have not worked with any off-site storage vendors previously.
> 
>     Please cc me directly as I only receive the digest version of the 
> mailing list, which appears to be only sent out about once a month.  Thanks.
> 
> Jeff
> 
> -- 
> 
> Jeff Boyce
> Meridian Environmental
> www.meridianenv.com
> 
> 
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GigeNET's Cloud Solutions provide you with the tools and support that
you need to offload your IT needs and focus on growing your business.
Configured For All Businesses. Start Your Cloud Today.
https://www.gigenetcloud.com/
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