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How long do disk drives last?

The Backblaze guys are looking at their service—an online backup service—in an attempt to come up with numbers about disk failures rates, life expectancy, and other such answers to questions that everyone running a decently sized service needs to estimate and plan for:

The short answer is: we don’t know yet, but it’s longer than you might guess.

backblaze-drivestats-3-lifecycles

✚ The numbers in the post are pretty encouraging. Not in terms of relying on the fact that drives don’t fail as often as you expect, but rather in terms of long term investment.

This is the sort of post you really want to save as reference. Combine the numbers with those from Google’s paper Failure trends in a large disk drive population (PDF)

Original title and link: How long do disk drives last? (NoSQL database©myNoSQL)

via: http://blog.backblaze.com/2013/11/12/how-long-do-disk-drives-last/