18 August 2012

"A backup isn't a backup if it's your only copy."

I recently had a hard drive fail, as it wont to happen at the busiest and most inconvenient times. After a couple days, an efficient technician, and a large hole in my wallet, everything is back up, running normally, and safe. This experience was much less traumatic than it could have been had I not had an established habit of regularly backing up my data.


I recently ran across this article regarding data storage safety. The author recounts a stressful close-call with hard drive failure:
"Last week, one of my son's friends lost a summer of work he'd done filming a documentary. It was a crucial college project for which he'd solicited and received considerable financial support via Kickstarter. He'd backed up months of footage garnered from extensive travel and interview to an external hard drive. Secure that he had a backup, he deleted the source data to gain more room on his Mac. It wasn't until the external hard drive failed that it dawned on him that a backup isn't a backup if it's your only copy."
Luckily, for the student of the article, all the data was able to be recovered with a little forensics, but one cannot count on being so lucky if your hard drive unexpectedly fails. The author has a few very simple points of advice for safe backup practices as the school year begins once again:

  • Backup regularly to a drive that won't be lost or damaged with the source
  • Periodically confirm that what you backup is present and recoverable
  • Never carry your backup media in the same backpack or bad as your computer.

I echo all this advice. If you don't have an external backup drive, get one. Nowadays, storage devices are very spacious and are relatively inexpensive for the security they provide. Ideally, backups should be stored in a different physical location from the source drive. That way, if one gets damaged, there is a greater chance that the other copy will survive unharmed and recoverable. I'd like to strongly emphasize that backing up must be a regular  activity, like doing laundry, balancing the checkbook, or going to confession. Otherwise, you're more likely to end up with several weeks, months, etc. of lost work.

On a similar note, if you have not already done so, it is a good idea to take an inventory of just where all your data is on the web. Where do you have accounts? What are the usernames and passwords? How much data are you sharing, and when did you last use an account/service? Organizing all this information can help you mitigate personal data needlessly floating around cyberspace, and will make you more conscious of your information-sharing habits on the web.

It is important to think of managing personal digital assets and data in the same way as we care for other non-static organisms. More helpful resources for personal digital archiving from the Library of Congress can be found here.

2 comments:

  1. "A backup isn't a backup if it's your only copy." – It’s a good thing you’ve pointed this out. There should be no less than two separate copies of your data. Have a backup of a backup. Another thing I may add is: test the backup from time to time. Do not go on believing that the software could get it right all the time. Try restoring them in various locations. This will reveal any defects or corrupt data before it’s too late.

    Lakisha Rubert

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  2. “Ideally, backups should be stored in a different physical location from the source drive. That way, if one gets damaged, there is a greater chance that the other copy will survive unharmed and recoverable.” Good point, and that is why it really pays to have a back up copy of your every important file. It does not only apply to private individuals, but also to different businesses that own and carry a big amount of data. Some businesses employ data storage management companies that provide security and back up plans for disaster recovery.

    Ruby Badcoe

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