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Headline

rsync

rdiff-backup

  • no archives created - mirrored structure is available at destination (like rsync). Easy to browse.
  • special directory rdiff-backup-data are also created at dest where old versions are kept
  • http://www.nongnu.org/rdiff-backup/

duplicity

  • encrypted/compressed volumes
  • restarting of broken backup needs only to re-download first volume from destination

duply

  • front end to duplicity

Performance

Backups to NSA310 over fast ethernet. Hard disc encrypted with software ARM-optimized AES. Average network copy performance 6-8MB/s. About 22GB of small files.

proto tool initial copy update no changes
rsync rsync
ssh rdiff-backup 144m