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Hardware Thread, UPS - No. per UPS? in Technical; I got a SmartUPS 1000 Which is powering 3 servers and a monitor. Is that too much for it to ...
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    UPS - No. per UPS?

    I got a SmartUPS 1000

    Which is powering 3 servers and a monitor.
    Is that too much for it to handle?

    The local council Brum, say that each curriculum and admin server
    should have their own UPS?

    Thanks

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    If it's a CRT, do not pass go, do not collect 200, disconnect it now.

    If it's a TFT, it's still well underspecced. I'd have either a 1000 for each server, or maybe a 1500 for two. Although it depends how big the servers are.

    Have you actualy tested to see how much run time you get when you pull the plug.

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    Jamman960's Avatar
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    I'd imagne with that load you'll get very little run time, probably not enough to shut down the servers.

    Have a look at the load LED's on the front, I'd imagine most if not all will be lit.

    SmartUPS 1000:
    Typical Backup Time at Half Load 20.6 minutes (335 Watts)
    Typical Backup Time at Full Load 6.1 minutes (670 Watts)

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    Quote Originally Posted by Jamman960 View Post
    I'd imagne with that load you'll get very little run time, probably not enough to shut down the servers.

    Have a look at the load LED's on the front, I'd imagine most if not all will be lit.

    SmartUPS 1000:
    Typical Backup Time at Half Load 20.6 minutes (335 Watts)
    Typical Backup Time at Full Load 6.1 minutes (670 Watts)
    Should these lights be lit all the time?

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    Quote Originally Posted by Edu-IT View Post
    Should these lights be lit all the time?
    They indicate load, so if you want a long run time on battery, then you want as few as possible lit.

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    Michael's Avatar
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    You can quite comfortably run two servers off a UPS, but as others have stated, this'll typically reduce your backup power in the event of a power cut.

    If you install the APC software this will give you fairly accurate readings how high the power consumption is. Alternatively there will be two readings on the front. One for the battery (which should be full 5 out of 5) and the second for how much the servers are using. Realistically this shouldn't be anymore than 3/4 out of 5.

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    On the front;

    Battery 5 out 5
    Load (or No. Devices connected, its got a picture of a computer?) 3/5

    Just checked the APC Powerchute console - no big errors apart from the battery age
    Last edited by owen1978; 14th December 2009 at 03:09 PM.

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    We use a 1500 UPS for each server and a further one that powers the server room switches, 2 x CDPs, a KVM, ADSL modem and a pull-out rack keyboard & monitor thingy.

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    Also just checked the UPS Load in the console its at 50%

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    PowerChute should also give you an estimated runtime, if the time given is enough to shutdown the servers(probably 15mins+) I'd say your ok with the UPS you have.

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    Also, if you are running redundant psu's in your servers then ideally they should be plugged into seperate UPS's. You can do this by sharing 2 UPS's between 2 servers.

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    Ours is showing no load on the front so I'm not convinced it's working?

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    Quote Originally Posted by Edu-IT View Post
    Ours is showing no load on the front so I'm not convinced it's working?
    What UPS is it and how many servers are hanging off it?

    Also what does powerchute say regarding load etc?

    James

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    Quote Originally Posted by owen1978 View Post
    I got a SmartUPS 1000

    Which is powering 3 servers and a monitor.
    Is that too much for it to handle?

    The local council Brum, say that each curriculum and admin server
    should have their own UPS?

    Thanks

    If the unit doesn't have over 80% load on it and you're satisfied with the run time, you'd be good to go. If you're unhappy with the runtime, feel it's too short or don't have enough time to safely shut down, you need to get a different UPS.

    Sizing UPSs is tricky, you want enough but not too much, if you have too much it costs longer in the long run as maintenance is more expensive.

    How often do you have power outages?

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    Quote Originally Posted by GorgeousGeorge View Post
    If the unit doesn't have over 80% load on it and you're satisfied with the run time, you'd be good to go. If you're unhappy with the runtime, feel it's too short or don't have enough time to safely shut down, you need to get a different UPS.

    Sizing UPSs is tricky, you want enough but not too much, if you have too much it costs longer in the long run as maintenance is more expensive.

    How often do you have power outages?
    I've got it to initiate a shutdown sequence as soon as its been on battery for a minute, the curric
    server then runs the default.cmd script which then sends a shutdown command to the admin server.

    Once a year probably, rather be safe than sorry!

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