John Goerzen wrote at about 14:26:33 +0000 on Wednesday, February 23, 2011:
 > Carl Wilhelm Soderstrom <chrome <at> real-time.com> writes:
 > 
 > > 
 > > On 02/21 11:00 , Dennis Blewett wrote:
 > > > Will I come across many problems in later restoring the pool's data if I
 > > > just rsync /var/lib/backuppc to the server?
 > > > Are there other files and folders I should be rsync'ing to the server?
 > > 
 > > rsync'ing the BackupPC data pool is generally recommended against. The
 > > number of hardlinks causes an explosive growth in memory consumption by
 > > rsync and while you may be able to get away with it if you have 20GB of
 > > data (depending on how much memory you have); you will likely run out of
 > > memory when your amount of data gets larger.
 > 
 > One thing to consider: you could omit the syncing of pool/ and cpool/ when
 > rsyncing to remote if you are rsyncing for disaster recovery purposes only. 
 > This will save some memory/time.  Note however that rsyncing the BackupPC 
 > tree
 > will likely be less efficient than just an rsync directly, because it won't 
 > be
 > able to use binary deltas during transfer since it will appear to rsync as if
 > the files are new since they have new names.
 > 

And of course you either lose pooling (if you don't use the -H flag)
or you are back to the same rsync memory bottleneck if you use the -H
flag.


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