1

De-duplicating backup tool on a block basis?

view story
linux-howto

http://serverfault.com – I am looking for an (ideally free as in speech or beer) backup tool for Unix-like OS which can store deduplicated backups, i.e. only nonredundant content takes up additional space. I already looked at dirvish (my first candidate) and rsnapshot which use hardlinks to achieve deduplication on a per-file level. However, as I want to back up large files (Thunderbird mailboxes >3GB, VMware images >10GB), such file are stored again entirely even if just a few bytes change. Then there are rsync-based tools like rdiff-backup which only store deltas and a current mirror. However, as the deltas are gen (HowTos)

taskli's picture
Submitted by taskli on 10/11/2012

Stories similar to De-duplicating backup tool on a block basis?

I'm currently using plain and flat rsync to backup my files, meaning I have no incremental backups.

A few days ago I became aware of the existance of rsnapshot and after looking at the man page I came to the conclusion, that this is a great tool, which I'd like to use.

My 'problem' now is, that I'd like to use my already existing backups as base for the first rsnapshot backup. After looking at t

rdiff-backup UpdateError 46 weeks 2 days ago

I am running rdiff-backup on my linux servers for backups and getting some error on Update like this

UpdateError aa.MYD Updated mirror temp file /backup/rdiff-backup.tmp.59 does not match source

how can i fix these errors.

I'm trying to setup a backup script on Ubuntu. Every day I want to copy my local source directory to a backup directory on a remote server uniquely named with the date. (e.g., backup-jan1/, backup-jan2/, etc) It should store a mirror of the earliest state and use difference files to recreate the new backup points.

This is pretty simple with rsync.

Hi,

I'm looking for an incremental backup tool for backing up pictures,documents, work related project files etc. I need a tool which takes incremental backups to DVD. It should not store any copy of the data on my harddrive except the meta-data required for taking backup .

Would be taking backups once in a month. Please suggest a software for this.

Thanks, sarin

Back In Time is a simple backup tool for Linux inspired from “flyback project” and “TimeVault”.The backup is done by taking snapshots of a specified set of directories.Keep in mind that Back In Time is just a GUI. The real magic is done by rsync (take snapshots and restore), diff (check if somethind changed) and cp (make hardlinks).

Dirvish exclude not working 43 weeks 2 days ago

Fedora 14 server I run dirvish to backup every night.

in my master.conf and default.conf for dirvish I exclude /var/backup/**

Every night after the backup completes I see in the tree directory my backup folder which contains every back up that was done.

I am looking for a similar tool like rsnapshot, capable of doing incremental backups and easy viewing of different backup versions (=easy unpacking of all increments of a specific backup or viewing of single files without unpacking them all).

I sadly cannot use rsnapshot because my backup-provider does not support hard-links.

I just bought 100GB of "Cloud"-Space at Strato's HiDrive for remote server backups. They offer the following services: sftp,webdav,smb/cifs,rsync,scp

Now i want to do a remote backup to my Backup-Space using rsnapshot. All the examples I found were only for backing up FROM remote servers to local machine, but not for backing up TO remote servers.

How can I do incremental backups using rsnapshot

I've never used Clonezilla before.

When storing a backup, Clonezilla needs a free partition or free space? I mean, I have a disk for backups with only one partition. Do I have to create a partition for save the backup (what means have 2 partitions) or it is stored just like a normal HUGE file?