Make sure your files are safe in the event of a hard drive disaster.

Whether it's photos, videos, financial records or an assortment of questionable personal poetry, you've probably generated stacks upon stacks of data over the years, figuratively speaking. While taking the time to make sure all that data is safe and backed up might not be your idea of an action-packed afternoon, there's a distinct and unpleasant panic that comes from realizing that your important files are gone for good. After all, no one wants to lose all those treasured cat photos. Fortunately, one fried hard drive doesn't have to leave you breathing into a paper bag and bargaining with the gods.

While there are different approaches out there to backing up your data, there's a classic rule you can use to get started. The 3-2-1 rule is a framework that covers how many copies of your data you need across how many types of media, and where that media should live. That way, if something happens to one of your copies, you have others you can rely on, keeping the panic at bay.

" At a baseline, the rule says that you need three copies of your data stored on two types of media (often interpreted as two different devices in recent times), and that one of those should be kept offsite. Think about it like this: if you only have one copy of your favorite vacation photos stored on an SSD and something happens to that SSD, you're out of luck.

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