====== Backup ======

===== Preface =====

This page is **not** grml-specific. It's just a place for collecting documentation regarding backups. So, what do we want to have? A backup system with the following features:

==== Must have features ====

  * automatism (no manual interaction needed)
  * easy to handle (no obscure and 'use trick 17b to get foo' software lacking documentation)
  * simple restore (fast and easy to use)
  * filesystem independent (do not depend on XFS, ext3,... specifics)
  * efficient diskusage (do not require 100% of original data for each backup)

==== Nice to have features ====

  * versioning system (now let's get file foo of backup of 24th of december)
  * support for LVM  (lvm-snapshot)
  * network support OOTB (move backup via sftp/ssh/... to another server)
  * supports encryption OOTB (so we do not have to write our own gpg-wrapper around it)
  * Debian package already available in >=Etch (get security support and have it on other boxes as well)

===== Present Debian Packages =====

  * afbackup - Client-Server Backup System (Server side)
  * afio - archive file manipulation program
  * amanda-server - Advanced Maryland Automatic Network Disk Archiver (Server)
  * backup2l - low-maintenance backup/restore tool for mountable media
  * backup-manager - command-line backup tool
  * backupninja - lightweight, extensible meta-backup system
  * backuppc - high-performance, enterprise-grade system for backing up PCs
  * bacula - Network backup, recovery and verification (Meta-package)
  * chiark-backup - backup system for small systems and networks
  * dar - Disk ARchive: Backup directory tree and files
  * dcfldd - enhanced dd with md5 checksums
  * dd - convert and copy a file
  * dirvish - Filesystem based backup system using rsync
  * duplicity - encrypted bandwidth-efficient backup
  * faubackup - Backup System using a Filesystem for Storage
  * flexbackup - Flexible backup tool for small to medium sized installations
  * ftpbackup - backup to/restore from ftp server
  * hdup - Filesystem duplicator and backup
  * ibackup - Automated backups (even remote) of machine configurations
  * mirrordir - duplicate a directory by making a minimal set of changes
  * mrb - Manage incremental data snapshots with make/rsync
  * multicd - Backup your data to CD-R/CD-RW
  * openafs-fileserver - AFS distributed filesystem file server
  * partimage-server - server to use partimage across a network
  * pdumpfs - a daily backup system similar to Plan9's dumpfs
  * rdiff - Binary diff tool for signature-based differences
  * rdiff-backup - remote incremental backup
  * rsnapshot - local and remote filesystem snapshot utility
  * rsync - fast remote file copy program (like rcp)
  * simba - next generation mirroring tool
  * storebackup - fancy compressing managing checksumming hard-linking cp -rua
  * tar - GNU tar
  * tob - Small yet powerful program for tape oriented backups
  * unison - A file-synchronization tool for Unix and Windows
  * zsplit - zsplit - will read big devices or files and make compressed splitted image chunks of it

===== No Debian Packages available yet =====

  * [[http://reoback.sourceforge.net/|reoback]]: simple to set up, and easy to use backup system

===== Comparison of Tools =====

^ Tool ^ efficient Storage/Diskusage ^ Bandwidth ^ Encryption ^ Compression ^ Bitkeep-Secure ^ add. Notes ^
|  duplicity | + | + | symmetric and asymetric  | + | unknown | - |
| - | - | - | - | - | - | - |