Backblaze’s 2014 Drive Reliability Report Link
I’m a happy Backblaze subscriber. I love them all the more for their regular report on hard drive reliability.
The assumption that “enterprise” drives would work better than “consumer” drives has not been true in our tests. I analyzed both of these types of drives in our system and found that their failure rates in our environment were very similar — with the “consumer” drives actually being slightly more reliable.
If you are looking for an awesome backup service, here’s my affiliate link. But I suggest you read about their file exclusions to understand what you are getting.