The important thing to understand is that it is NOT<\/em><\/strong> a rating for when the particular<\/em> drive will fail – but is a statistical representation of the reliability of the entire product line: if you have 1 000 000 hard drives running, each with an MTBF of 1 000 000 hours, then about 1 will fail every hour (I know I simplified the math there). Likewise, if you have 100 000 hard drives*, one will fail about every 10 hours.<\/p>\n So, the next time you’re getting ready to buy a hard drive, by all means check the MTBF – but remember that it doesn’t mean a whole heckuva lot \ud83d\ude42<\/p>\n Google has an excellent article<\/a> (pdf) on this, as well.<\/p>\n *That is a not an improbable number – I have worked with customers *managing* about 50 000 servers, each of which had at least<\/em> two drives – many with more<\/sub><\/sup><\/p>\n","protected":false},"excerpt":{"rendered":" Most manufacturers will list an MTBF (Mean Time Between Failure) on their products – at least in the computer hardware industry. A typical number might be 1 000 000 hours. For those keeping track at home, that’s about 114 years! Now, since no harddrive has been running for more than a century, how could they …![\"Calvin's](\"http:\/\/antipaucity.com\/wp-content\/uploads\/2011\/04\/0EYY5.gif\" "\\"Calvin's")
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