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Test your Backups

It would be devastating to diligently make backups, only to find some day that you're unable to restore the file(s) you've lost and so desperately need. Two things often go wrong: Either the file you thought you had backed up was not included in your backup, or your file restore process fails to work.

Follow the steps below to test your backups and make sure neither happens to you:

  • Start with a small test: You really only need to backup and restore a few files to see if the system itself works. Don't restore some important file to test your process. Something might go horribly wrong and you'd lose your file completely.
    • Create a test folder containing a couple of test files. Create the files, or just copy a few existing ones to your test folder. Back up the folder and files, using the method you've picked. Use the actual backup media that you intend to use for your real backups (floppy, Zip, CD-R, etc.) too.
    • Check the content of your backup archive. Not all archives have a way for you to examine what's in them, but most do. You may need to go through the first steps of the restore process to see the contents of the archive. You can usually abandon the process before the file(s) are actually restored.
    • Delete the test files and test folder. Then, see if you can actually restore them from your backup.
  • Make your *real* backup(s). Check the actual contents of the archive(s). If they don't have everything in them you expected, figure out why, and do the backup again.

    In particular, make sure that any new files that you've added get picked up. For example some CD burning software does not add new files to compilations that you've saved, even though you see the folder listed. You'll need to delete the folder in the compilation and then add it back to pick up new files.

  • Checking your backup contents thoroughly every time you make new backups until you're confident your process works consistently.

"Bad habits are like a comfortable bed, easy to get into, but hard to get out of." -- Anon.
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