Peter Walter wrote:
> 
>> Still, it would be awesome to combine the simplicity and pooling
>> structure of BackupPC with the flexibility of a database
>> architecture...
>>   
> I, for one, would be willing to contribute financially and with my very 
> limited skills if Craig, or others, were willing to undertake such an 
> effort. Perhaps Craig would care to comment.

The first thing needed would be to demonstrate that there would be an 
advantage to a database approach - like some benchmarks showing an 
improvement in throughput in the TB size range and measurements of the 
bandwidth needed for remote replication.

Personally I think the way to make things better would be to have a 
filesystem that does block-level de-duplication internally. Then most of 
what backuppc does won't even be necessary.   There were some 
indications that this would be added to ZFS at some point, but I don't 
know how the Oracle acquisition will affect those plans.

Meanwhile, if someone has time to kill doing benchmark measurements, 
using ZFS with incremental send/receive to maintain a remote filesystem 
snapshot would be interesting.  Or perhaps making a vmware vmdk disk 
with many small (say 1 or 2 gig) elements and running backuppc in a 
virtual machine.  Then for replication, stop the virtual machine and 
rsync the directory containing the disk image files.  This might even be 
possible without stopping if you can figure out how vmware snapshots work.

-- 
   Les Mikesell
    lesmikesell AT gmail DOT com




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