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When making a backup, what is the best method to check for corruption?

In my case I have frequent power cuts to a powered external drive.

Using OS X and Linux

jakethedog
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1 Answers1

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As you recognize, a bad backup is worse than useless, since it lulls the user into a false sense of security.

First, get a UPS for the external HDD. It might be easier to power the drive from a battery on a charger, rather than a commercial UPS, since many external HDD's use just a single-ended 12 VDC supply.

Second, set the backup/imaging software to verify the file automatically. However, if there are frequent power outages, the verify operation might fail due to that, rather than due to a bad file.

DrMoishe Pippik
  • 37,887