Battery Powered Server

Posted by on Fri, April 10, 2009

▼ A d v e r t i s e m e n t

For real?


The black box with two terminals is a 12V battery, and it looks like a lead-acid battery. Is it a DELL? Is it an IBM? Is it an HP? No, it is a Google. That’s right people, it’s a unit of many Google’s server inside its data center containers. It’s a 2U thick server, with a Gigabyte mainboard holding 2 CPUs, 2 hard disks, and 8 pieces of RAM.

It’s not really battery powered, but the battery kicks in once the main power is lost. This effectively eliminates the need for more expensive and space consuming giant UPS’s (uninterruptible power supplies) which are batteries anyway. Is this a better solution? You be the judge.

If you ask me, I’d like to have one of those Magnetek power supply unit to install on my PC. The battery can nicely fit in a tower casing, much better than having separate UPS units. However I think the mainboard itself must be custom because the 12V to 5V conversion takes place there. The power supply unit only outputs 12V (approximately 13.65V).

However I can’t find any info on how long can the battery can actually supply power.

Story found on CNET:

Related Posts with Thumbnails

Tags: , ,

Facebook Comment

WARNING & REMINDER: Comments are moderated and there is no exception. Comments unrelated to the post, too short, using phoney emails or funny names, will be marked as spam. Foul languages are filtered as spam. Your email will never be displayed on this site. If you would like to receive replies, use a valid email address and check the subscription box below.
  • It seems like your server’s image hotlink configuration is so powerful, I can’t even see what you are displaying. I understand hotlink protection for RSS, but on website?

    • ady

      You must be confused with hotlink protection if that’s your comment. The protection image is only displayed if the referrer is not the same domain. I believe you have been facing this issue with my site for quite a while and I am guessing something is rewriting HTTP_REFERER on your browser. Are you connecting direct or via some sort of hi tech connection? I am really interested in solving this once and for all so please help me?


  • Yeah..I am confused. After refreshing my browser a couple of time, I can now see the image. I only use anonymous proxy on public wifi or else I just use normal Streamyx connection.

    • ady

      Ah-ha! That usually happens when your browser caches the image after the hotlink protection was activated. My protection only allows my domain, and the Google domain (for Google Reader). If you’re using other RSS readers it is likely that the image is replaced with the hotlink protection image and the browser caches it. If you’re using other RSS reader, then the mystery is solved. I wonder how can I allow all RSS readers… hmmm. Time to dig that Apache manual again.

      Anyway thanks for visiting I know you must be busy you don’t blog a lot lately. Nothing interesting after Citrawarna?