----- Original Message ----- > From: "Rainer Traut" <tr.ml at gmx.de> > To: centos at centos.org > Sent: Monday, August 27, 2012 4:55:03 AM > Subject: [CentOS] Deduplication data for CentOS? > > Hi list, > > is there any working solution for deduplication of data for centos? > We are trying to find a solution for our backup server which runs a > bash > script invoking xdelta(3). But having this functionality in fs is > much > more friendly... > > We have looked into lessfs, sdfs and ddar. > Are these filesystems ready to use (on centos)? > ddar is sthg different, I know. > > Thx > Rainer Although not open source, CrashplanPROe only costs $365 for a perpetual five client license. I use it to backup some of my Linux boxes. It has very good deduplication, compression, and encryption. For example I have 1.7TB of data on one linux system and another system that has 1.5TB. I NFS mount one of the systems to another and only use one Crashplan client to backup both data sets to a single backup archive. The backup archive is only 1.2TB and that also spans 90 days worth of file modification and deletion I can recover. David.