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Sun Puts Data Center Through 6.7 Earthquake

An anonymous reader sent in a video clip showing Sun experimenting with shoving a data center through a simulated 6.7 Earthquake. Everything stays running, but some power cords came out and some screws worked loose. It's still kind of neat to see a bunch of racks shake like a polaroid.

45 of 195 comments (clear)

  1. Hard drives?? by Mhtsos · · Score: 5, Insightful

    What hard drive survived that, that's what I'd like to know.

    1. Re:Hard drives?? by Remloc · · Score: 4, Interesting

      Hard drives are not as fragile as you might think. I was running our tiny company's "data center" (3 consumer '486s, two HDs each, screwed down to a metal rack bolted to the wall) 35 miles from Northridge during the 6.75 Northridge quake.
      Didn't lose a single drive.

    2. Re:Hard drives?? by furby076 · · Score: 3, Informative

      Usually the ones that cost about $35k/terrabyte as opposed to the ones that cost $99/terrabyte at newegg.

      --

      I do not support "The Man". I also do not support your irrational stupidity
    3. Re:Hard drives?? by maxwell+demon · · Score: 3, Funny

      Usually the ones that cost about $35k/terrabyte as opposed to the ones that cost $99/terrabyte at newegg.

      Well, if it comes to earthquakes, terrabytes surely beat terabytes. After all, it's not a monsterquake! :-)

      --
      The Tao of math: The numbers you can count are not the real numbers.
    4. Re:Hard drives?? by Thelasko · · Score: 3, Funny

      They could have saved a bunch of time and money by simply setting up that server in the town of Esparto, California.

      --
      One of our competitors trademarked the term "hypothesis". From now on, we will call them "boneheaded ideas".
    5. Re:Hard drives?? by fm6 · · Score: 4, Informative

      Neither does Sun. This kind of shock-and-vibe testing is actually routine for their products — I've been in the lab where it's done. That lab can't handle anything bigger than a rack, hence the outsourcing of this particular test.

    6. Re:Hard drives?? by AlecC · · Score: 2, Informative

      If firmly mounted, the drives are very shock tolerant. What people don't realize is how high the G force generated when hard object like a drive hits a hard object like a table. You can get instantaneous tens, possibly hundreds of Gs. Earthquakes can generate several Gs, but not tens. Problems tend to occur when structures have forces in unexpected directions (walls are bad at shifting sideways, masonry doesn't like decompression) or when you get resonance with the oscillation, which builds up the energy. Disk drives don't have these failure modes.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    7. Re:Hard drives?? by Psyberian · · Score: 2, Informative

      Even properly mounted high speed drives can be susceptible to shake damage. In installing a new rack in our datacenter a wire monkey used a hammer drill in our concrete floor next to a rack full of running servers. We had a number of 15000rpm drives have bad sectors from that. They were properly mounted servers and drives. Now if they were 7200rpm drives we probably would have been fine, but what data center needed high speed data access wouldn't use 15000rpm drives.

      Long story short, I would love to see the sector analysis from those hard drives.

    8. Re:Hard drives?? by PIBM · · Score: 2, Interesting

      I've read that some hard drive use a magnetic stabilisation inside, a little like the digital cameras who moves the sensors along with the user movement, thus, if the hard drive is powered, it can sustain bigger vibrations without being damaged.

    9. Re:Hard drives?? by ByOhTek · · Score: 2, Interesting

      True, but I've had several hard drives from MANUFACTURER_A which have been dropped several feet (while off) onto both hard tile and carpeted floors, and get plugged in and work fine for years. Another, while on, took a three foot fling/tumble when my notebook satchel slipped from my arm (I hadn't realized I left the computer on), and it survived.

      Then I went to MANUFACTURER_B, and a turned off computer with a minitower case slipped and fell on it's side, and the drive died (a few other similar, relatively low impatct collisions with these drives had similar effect).

      A third manufactuer was similar to the first in my experience. Then there was a fourth that worked great, except at the slightest hint of shock, they started making crazy noises from then on (they worked, but if a drive starts making noises all of a sudden like that, you can't really trust it).

      --
      Self proclaimed typo king, and inventor of the bear destroying coffee table (patent not pending).
    10. Re:Hard drives?? by Hijacked+Public · · Score: 2, Insightful

      The room probably sat on rubber air springs, which is common for modern buildings in earthquake prone area.

      An earlier reply to you mentions rolling data centers used by militaries. The ones I've seen mount containers on smaller air springs...you'll see Airride on a lot of semi trucks on the highway.

      --
      "Sacrifice for the good of The State" - The State
    11. Re:Hard drives?? by metaforest · · Score: 2, Insightful

      I'm not surprised....

      Earthquakes don't have a lot of energy in the range that HDs are tested...

      Most CONSUMER grade drives are tested with a half-sine shock in the 5ms range; thats like a smack with a hammer for 50G to 100G.. or a drop to a concrete floor from three to six feet. That dents cans, bearings and deforms aluminum drive frames.

      Earthquake energy is a slow gentle push, by comparison, even taking into account distortion of larger structures in the rack. If you use your laptop while riding on a bus, car, or sometimes a plane, your exposing it to more acceleration than an earthquake can usually dish out.

      summary: expecting a consumer grade drive to survive a 6.7 or even a 10 point earthquake is not really much of a stretch unless the rest of the building around the drives is collapsing....

      An installer can do far more damage to a drive just by over tightening the mounting screws.

  2. Slashdot meets 21st century!? by Swizec · · Score: 5, Informative

    FUCKING HELL is that an embedded video I see in the story!? Holy shit, the geek website is ... in step with the times?

    1. Re:Slashdot meets 21st century!? by 0racle · · Score: 5, Insightful

      Actually, that pissed me off.

      --
      "I use a Mac because I'm just better than you are."
    2. Re:Slashdot meets 21st century!? by 45mm · · Score: 2

      Yes, I too *gasped* at having to actually read/view the content of the article. What is this site coming to? Informed commenting may be next!

  3. Fixy Linky Please? :) by Ambiguous+Coward · · Score: 5, Funny

    Sweet, a link in a summary to the summary itself. Just what I've always wanted!

    --
    Their may be a grammatical error, misspeling, or evn a typo in this post.
    1. Re:Fixy Linky Please? :) by mortonda · · Score: 2, Funny

      OH no, you know what that means? We all just RTFA. I think that signals the end of the world or something.

    2. Re:Fixy Linky Please? :) by idontgno · · Score: 5, Funny

      Circular reference for nerds. Dupe optimization that matters.

      --
      Welcome to the Panopticon. Used to be a prison, now it's your home.
    3. Re:Fixy Linky Please? :) by mentaldrano · · Score: 4, Funny

      Circular reference for nerds. Dupe optimization that matters.

    4. Re:Fixy Linky Please? :) by u38cg · · Score: 5, Funny

      Yo dawg, I put an injoke in your injoke so you can...aww screw it. Yo momma fat.

      --
      [FUCK BETA]
    5. Re:Fixy Linky Please? :) by gbrandt · · Score: 2, Insightful

      Most nerds would call it recursive, not circular reference.

      Besides, I prefer techno-weenie.

    6. Re:Fixy Linky Please? :) by Amazing+Quantum+Man · · Score: 4, Funny

      Ah, but you see, Grasshopper, to understand recursion, you must first understand recursion!

      --
      Fascism starts when the efficiency of the government becomes more important than the rights of the people.
  4. Re:TFS by Red+Flayer · · Score: 4, Funny

    but it's still kind of neat to see a bunch of racks shake like a polaroid.

    Only on slashdot does this refer to server hardware.

    (At Hooters, it refers to server software).

    --
    "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
  5. Re:"shake like a polaroid" ? by name_already_taken · · Score: 2, Informative

    As in, shake the instant photo to help it develop.

    The funny part is, the shaking never really helped the photo develop. It just did the user something to do while the chemicals did their work.

    My mother had a Polaroid instant camera in the UK and we had never heard of shaking the pictures until we came to the US. It seemed as stupid as shaking a bottle of water to make it more watery or something.

    --
    Putting moderation advice in your .sig lowers your karma!
  6. Re:TFS by idontgno · · Score: 4, Funny

    (At Hooters, it refers to server software).

    Server firmware, please. Typically, embodied in silicon(e).

    --
    Welcome to the Panopticon. Used to be a prison, now it's your home.
  7. Re:"shake like a polaroid" ? by commodore64_love · · Score: 2, Informative

    >>>shake the instant photo to help it develop.

    That is Not what you do with a polaroid. Shaking the photo can cause damage. The proper procedure is to lay it someplace dark and wait 2-3 minutes.

    --
    "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  8. Old news. by Trentus · · Score: 2, Informative

    I knew there was something familiar about this. I stumbled upon it on a slow day at work a couple of years ago. The video is dated 2007 at the end.

  9. Re:slashdvertisements by dotancohen · · Score: 5, Insightful

    thats what sun is spending money on before its taken over?

    Do you expect all development and innovation to stop the moment one mentions the word IBM? I'm glad to see Sun innovating and proving that their technology is reliable.

    --
    It is dangerous to be right when the government is wrong.
  10. that happened to silicon valley in 1989 by peter303 · · Score: 2, Interesting

    Everyone has pictures of racks sliding across the room and CRT terminals dangling from desktops. The surprising thing was how much rebooted immediately after the power returned. And even in that year the pre-web internet was more reliable than the phone company. Email worked better than many phones.

  11. Re:"shake like a polaroid" ? by commodore64_love · · Score: 2, Insightful

    Dry??? That's a myth equivalent to those who think snakes are slimy. Neither snakes nor polaroids are wet. Both are dry to the touch.

    --
    "I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
  12. Re:"shake like a polaroid" ? by eln · · Score: 5, Funny

    Come sit on your grandpa's knee and I'll tell you a story.

    Long before you were born, back when I was just a lad and dinosaurs roamed the Earth, there was no such thing as "digital photo-graphy". The only way to capture an image of someone or something (or "steal their soul" as we called it back then) was to use a primitive device that would capture light reflected from the target and project it on to a chemical "film", which would end up with a copy of the image embedded into it.

    Later, we would take this film to an old-fashioned building known as a "drug-store" (sort of like Amazon, but you had to drive there, and sometimes you even had to interact with other people in order to purchase goods and services). We would drop off our film, it would be sent off to a magic "photo development center", and transformed into a picture printed on special photo-graphic paper.

    If for some reason you didn't want to wait, you could instead take a picture with a so-called "Polaroid insta-matic camera", which had self-developing film. You would take the picture, and within seconds it would come out of the camera. However, it would still take several seconds to fully develop. Many people thought shaking the picture made it develop faster, but of course that was just silly superstition. The real way to make it develop faster was to sacrifice a goat, but few people tried that, and so were stuck with slowly developing pictures.

    Now, of course, everyone has these "digital photo-graphical machines" which make Polaroids obsolete, and so soon no one will know the simple joy of shaking a Polaroid picture.

    Come back tomorrow, and I'll tell you about how we had to use "floppy disk-ettes" to transfer files from one computer to another, and how we were able to dodge saber-toothed tigers using 1/2-inch tape reels.

  13. Re:slashdvertisements by ubrgeek · · Score: 5, Funny

    Actually, I was wondering if this was being done in anticipation of the shakeup that will happen after the purchase... Get it? Get it? Thanks folks. I'm here all week. Try the veal and tip your waitress... :)

    --
    Bark less. Wag more.
  14. Re:"shake like a polaroid" ? by tecnico.hitos · · Score: 2, Funny

    Dry??? That's a myth equivalent to those who think snakes are slimy. Neither snakes nor polaroids are wet. Both are dry to the touch.

    Mythbusters can prove that a snake is slimy...with explosives!!!

    --
    The good, the evil and the vacuum tubes.
  15. Re:"shake like a polaroid" ? by rlseaman · · Score: 3, Interesting

    Instamatic was Kodak's cartridge loading technology (http://en.wikipedia.org/wiki/Instamatic), not Polaroid.

    Each company's products evolved through many generations. Large cartridges, small cartridges, flash cubes, flash bars, wet developer/fixer, dry process. We gave my dad a Polaroid SX-70 (http://en.wikipedia.org/wiki/SX-70) when it first came out. Something very satisfying about the whirr and thunk of the ejection mechanism. The batteries were contained in the film cartridge.

    I recall some Japanese tourists stopping him to take a look at the camera - this may have been the last cool technology that the U.S. saw before Japan.

  16. Re:"shake like a polaroid" ? by ShieldW0lf · · Score: 3, Interesting

    http://edition.cnn.com/2004/TECH/ptech/02/17/polaroid.warns.reut/index.html

    In older cameras, there was no protective plastic cover, the chemicals were exposed to the air, and shaking or blowing on the picture would make it dry faster.

    In newer cameras, there is a protective plastic cover, the chemicals are not exposed to the air, and shaking will not cause it to dry faster.

    --
    -1 Uncomfortable Truth
  17. yay! cant wait to see what happens when by nimbius · · Score: 3, Informative

    my manager sees this shit.

    now whenever i mention colocation and its impending budget, ill have this godforsaken thing thrown in my face. important facts like "way outside its normal envelope" will fall to the wayside as superbox 9000 will solve all the companies woes, cause our shareholders to sing, and increase productivity by big number!

    then, when i integrate it with both the cloud and the grid infrastructure, ill see a completely service oriented architecture designed to leverage our aging, proprietary, uncompetitive, lazy, and barely piece of suck ass assets to rocket us in direct competition with google, before we overtake microsoft!

    glad they tested it, but sad it was never really emphasized the box shouldn't be guaranteed to specifications that resemble porn.

    --
    Good people go to bed earlier.
  18. The real test... by LabRat007 · · Score: 3, Funny

    They need to test if Data Centers can survive a Myth Busters taping. Thats a REAL test.

    http://www.kcra.com/cnn-news/19016582/detail.html

    --
    "Capital punishment makes the state into a murderer. Imprisonment makes the state into a gay dungeon-master"
  19. Your shaken milage may vary by MountainLogic · · Score: 3, Interesting

    I designed a navigation display product some years ago for shipborne application (think bridge of supertankers) and we put it through a standard shake & vibe test. Everything came through fine except the video was scruzled. At first we assumed the CRTs died but upon investigation we found that the connectors on the MB ate their way through the gold fingers on the PCI video card. As electrical engineers we learned a lot of hard lessons. Shake and vibe are tough and since every system is going to have different harmonics it is hard to generalize. Simple rules of thumb and intuition may serve you poorly. In some cases shock mounts made things worse.

  20. Re:Old. by Anonymous Coward · · Score: 4, Funny

    Anonymous just because I'm to lazy to login...

    The way I read it, is that the data center as a whole stayed up and functional. I'm sure it's built with enough redundancy to maintain service through a failure of a few machines/drives/switches/etc...
    Not every power cord came loose, the "system" compensated, and the box kept on serving.

    Now they need to test what happens when the field tech is replacing a drive right when the earthquake hits. That should be some fun watching! Does he still get the drive replaced?
    Let's find out!

  21. Re:Old. by danw5k1 · · Score: 4, Interesting

    Real computers have more than one power cord.

  22. Re:Old. by j-pimp · · Score: 3, Insightful

    Everything stayed running... the failures consisted or power cords coming out

    So by "running" I think they mean "didn't break"

    Redundant power cables? Although to be fair, in a real data center, KVM pushcarts and jewel cases left in partially filled racks would be a big factor in causing wire damage. Not to mention server mounting arms extending.

    --
    --- Justin Dearing http://www.justaprogrammer.net/ We're just programmers.
  23. Next sim needs crash test dummies by globeadue · · Score: 2, Funny

    Lol what about the poor SOB who's in that tin can doing maintenance on the server when the earthquake hits.

    --
    ..just because you can, doens't mean you should...
  24. Re:Old. by rackserverdeals · · Score: 2, Interesting

    There's no room for a KVM pushcart in the Sun Modular Datacenter.

    All sun servers, new ones anyway, have an integrated lights out management card (ILOM) that you would use instead of a KVM switch. It allows you to connect to the server, even if it's powered off.

    If you were putting this in a seismic zone I would assume you would install some rack drawers if you would have small objects such as jewel cases so you wouldn't have them just laying around. The design of the unit doesn'nt seem to have any shelves, or things you could use as a shelf to put these items on anyway.

    The racks are put in the container sideways and there is a side panel. The rack slides out into the aisle if you need to service anything in the rack.

    I posted a link to this video on the previous thread on the new Internet Archive Data Center that used one of these modular data centers. I guess someone found it interesting and didn't notice how old it was.

    --
    Dual Opteron < $600
  25. Re:Old. by rackserverdeals · · Score: 2, Informative

    A KVM is a device that allows you to use one one keyboard, video display and mouse and switch across multiple computers.

    A pushcart is a frame on wheels that you can put stuff on and push around.

    A KVM pushcart is a KVM switch, monitor, keyboard and mouse on a cart that you can push around to bring to different racks to use the KVM without having to have a KVM setup in each rack with dedicated connections to each server.

    --
    Dual Opteron < $600
  26. Re:Old. by seenu_2408 · · Score: 2, Insightful

    Please Earth Quake !! What will happen to the Junks surrounding this black Box.... Its seems look a like 10ft container .... What happen if another black box by side of this black box hit one to one...... The impact logically will be more higher than 6.7 magnitude earth quake impact.