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Hardware Thread, UPS For Server Cupboard in Technical; Originally Posted by dhicks Sissies. No sense of adventure. -- David Hicks After reading about the Ikea racks, I was ...
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    Quote Originally Posted by dhicks View Post
    Sissies. No sense of adventure.

    --
    David Hicks
    After reading about the Ikea racks, I was seriously tempted to see what fiendish Heath Robinson contraption I could encourage you to build for backup power.

  2. #32

    dhicks's Avatar
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    Quote Originally Posted by SYNACK View Post
    The larger units also often come with the management cards included which can make it cheaper
    I'm going to be sticking with my very cheap spare-PC-that-shuts-down-if-the-power-goes-off system, and we only need 10 minutes or so runtime to allow for everything to shut down.

    I think that there are some cases and or adapters that do allow for two standard PSUs to be connected in tandem
    Or two IEC power cords, some wire strippers, heat shrink and a blowtorch...

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    Quote Originally Posted by pete View Post
    I was seriously tempted to see what fiendish Heath Robinson contraption I could encourage you to build for backup power.
    I was reading something on Slashdot today about potato-powered batteries...

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    David Hicks

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    Quote Originally Posted by dhicks View Post
    Or two IEC power cords, some wire strippers, heat shrink and a blowtorch...
    Here we go IEI, the industrial computer provider focus on industrial boards, display, embedded system. - ACE-R4140AP, way expensive but i had to prove they existed. Turns out that you can't really get two standard ATX PSUs to team up (redundancy) as they tend to melt everything as they need to be designed in a different way to be able to team.

    The Y cable would may work to cut the UPS out of the single point of failure loop but that still leaves the single PSU . BTW I would not recommend the Y cable as the UPS conditions the voltage level and waveform (depending on quality of the gear) and I don't know what would happen in a UPS deathmatch to be in control .

    You could probably use a Microcontroller to moniter and shutdown everything if you wanted, would use very little power and be very robust. I think that the beagleboard even runs quite a range of linuxes and hardware.

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    dhicks (22nd June 2010)

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    DO NOT UNDER ANY CURCUMSTANCES MAKE UP A "Y" LEAD to connect two UPS's into one PSU (that is unless you actually like explosions, fire, and possibly death).

    With regard to weight - take the batteries out before you move the UPS's!!! The 2200 and 3000 rack mounts (weigh nearly the same) are approx 20kg for the battery and 20kg for the chassis so you can install one yourself as long as you seperate the battery. (I think the tower versions are heavier). It is easier with 2 peeps tho!!!

    Butuz

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