[CentOS] Rsync and differential Backups

Mon Nov 9 17:59:37 UTC 2015
John R Pierce <pierce at hogranch.com>

On 11/9/2015 9:50 AM, Gordon Messmer wrote:
> I don't see the distinction you're making.

a incremental backup copies everything since the last incremental

a differential copies everything since the last full.

rsync is NOT a backup system, its just a incremental file copy

with the full/incremental/differential approach, a restore to a given 
date would need to restore the last full, then the last differential, 
then any incrementals since that differential, for instance, if you do 
monthly full, weekly differential and daily incrementals.    If you 
don't use differentials, then you'd have to restore every incremental 
since that last full, which in a monthly full, daily incremental 
scenario could be as many as 30 incrementals.

john r pierce, recycling bits in santa cruz