Hard Drive Failure Statistics at Google

August 9, 2007 at 8:40 pm 12 comments

Statistics about hard drives from Google’s data centers were published in USENIX, showing how different variables affect the failure rate of hard drives. AFR is “Annual Failure Rate”.

The older drives may be failing more simply because they are a less advanced batch.

Low, medium, and high specify the usage.

Surprisingly, 35-45 degrees C is the sweet spot for hard drives. Colder temperatures actually cause them to fail more.

SMART will catch about half of hard disk failures before the happen, but many drives will fail without any warning.

Pinheiro, E., Weber, W., & Barroso, L. (2007). Failure Trends in a Large Disk Drive Population. Proceedings from FAST ’07: USENIX Conference on File and Storage Technologies, 5. [PDF]


Entry filed under: Google, Hard Drives, Statistics.

Firstborns have higher IQs than their siblings Do Opposites Attract or Do People Look For Similar Partners?

12 Comments Add your own

  • 1. Codzienna kupa  |  May 22, 2009 at 5:02 am

    I’ve never had any problems with hard drives. Well except for that one time when I accidentaly erased 40gb of data. But that was my fault.

  • 2. web design in miami  |  June 23, 2009 at 6:37 am

    Oh man, this explains a lot. I’ve been doing some overclocking lately and for that, I had to exchange your regular radiators with something with a bit more punch. I might have overdone it, with all of this on the room temperature starts going down!
    But at least now I know why my hd died. ..

  • 3. mimikmateusz  |  November 24, 2009 at 11:49 am

    Thanks a lot for this information! it is very useful

  • 4. George Clooney  |  March 27, 2011 at 6:50 am

    Interesting facts ;) thank’s for sharing.

  • 5. web page  |  December 21, 2013 at 1:47 am

    Hey there! Would you mind if I share your blog with my facebook
    group? There’s a lot of folks that I think would really appreciate your content.
    Please let me know. Many thanks

  • 6. nyc air conditioning repair  |  January 14, 2014 at 2:59 pm

    Thanks designed for sharing such a fastidious opinion,
    article is fastidious, thats why i have read it fully

  • 7. google  |  February 26, 2014 at 4:14 am

    With havin so much content do you ever run into any issues of plagorism or copyright violation?
    My blog has a lot of unique content I’ve either written myself or outsourced but
    it looks like a lot of it is popping it up all over the internet without my
    agreement. Do you know any ways to help reduce content from being ripped
    off? I’d truly appreciate it.

  • 8. automatic Lead Tools  |  October 8, 2014 at 4:05 pm

    Hi, I think your website might be having browser compatibility issues.
    When I look at your website in Chrome, it looks fine but when opening in Internet
    Explorer, it has some overlapping. I just wanted to give you a quick heads up!
    Other then that, excellent blog!

  • 9. music keyboard  |  October 8, 2014 at 8:48 pm

    I’m gone to convey my little brother, that he should also pay a quick visit this webpage on regular basis to obtain updated from most recent news

  • 10. Dao tao SEO nguoi khuyet tat  |  June 5, 2016 at 3:40 am

    I’ve been exploring for a little bit for any high quality articles or blog posts on this kind
    of space . Exploring in Yahoo I finally stumbled upon this site.
    Reading this information So i am satisfied
    to exhibit that I have an incredibly good uncanny feeling I found out just what I needed.
    I so much undoubtedly will make sure to do not put out of your mind
    this web site and provides it a glance regularly.

  • 11. Pujcka Bez Registru Jeste Dnes  |  June 21, 2016 at 1:56 am

    Gotwka takto nebankovní úvěry pro špatné úvěry a celkovou částku hospody peněžní America takto nebankovních
    půjček pro úvěrové zwycizcw Zych tábora. let i 4000
    bez 4 000 PLN splacení do 1 měsíce peníze na již účet do 15 minut.
    Credit gotwkowe gotwkowe kredit: RÚ gotwkowy
    gotwka zabezpečit poukázky kreditní karty, investiční bankovnictví.

  • 12. kitchen  |  July 13, 2016 at 10:52 pm

    If you purchase a sink that is too big for that house or even too tiny for it, a
    tiny kitchen transforming project could flip into a reasonably massive one.
    All they require is a quick pass-over with a damp sponge.
    Other smaller units or refrigerators can be added to store other food, cooked or


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Subscribe to the comments via RSS Feed


Read any good papers lately?

If you're interested in academic research, I'd love to have additional contributors. Shoot me an email.


%d bloggers like this: