On 08/28/12 11:41 AM, Les Mikesell wrote: > On Tue, Aug 28, 2012 at 3:03 AM, Rainer Traut<tr.ml at gmx.de> wrote: >>> >> >> >Rsync is of no use for us. We have mainly big Domino .nsf files which >> >only change slightly. So rsync would not be able to make many hardlinks. :) > Rdiff-backup might work for this since it stores deltas. Are you > doing something to snapshot the filesystem during the copy or are > these just growing logs where consistency doesn't matter? NSF files are a proprietary database format used by Lotus Notes and Domino, very complex, there's a pile of versions, and they are totally opaque. Pretty sure that if they are being accessed or updated while being copied the copy is invalid, so yes, some form of snapshotting is required. commercial backup software uses Domino/Notes APIs to do incremental backups, for example http://www.symantec.com/business/support/index?page=content&id=TECH46513 -- john r pierce N 37, W 122 santa cruz ca mid-left coast