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Make your own Wayback Machine or Time Machine in GNU/Linux with rsnapshot

Sep 18, 2009, 12:36 (0 Talkback[s])
(Other stories by Terry Hancock)

[ Thanks to steve hill for this link. ]

"In practice, you can expect to need a backup drive approximately twice the size of the system you are backing up. Once fully established, the backup system will not continue to grow, because old data will eventually be retired and deleted automatically.

"With the configuration options in rsnapshot it will be possible to create just about any tiered backup arrangement you want. For my system, I keep daily snapshots for 30 days, weeklies for just over a year, and finally, monthly backups for ten years. Presumably, I will have set up a new system long before any of the monthlies get deleted.

"Using a script, I have set up my system to work like the Wayback Machine in that each backup incorporates the date in its file path. So, I can browse the available dates and pick one I think is most likely to have the data I want. Thus if today is August 20, 2009, and I’ve accidently deleted my Mozilla bookmarks file (I’ve known Sea Monkey to destroy this file if it crashes badly), I can recover it by copying from yesterday’s backup:"

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