+ Post New Thread
Page 1 of 2 12 LastLast
Results 1 to 15 of 16
Hardware Thread, How many servers on an APC 1000 UPS? in Technical; Hi All, Can anyone give me a rough guide as to how many servers I can have running on a ...
  1. #1

    Join Date
    Sep 2006
    Location
    Cornwall
    Posts
    139
    Thank Post
    8
    Thanked 0 Times in 0 Posts
    Rep Power
    0

    How many servers on an APC 1000 UPS?

    Hi All,

    Can anyone give me a rough guide as to how many servers I can have running on a single APC 1000 smart UPS? Currently I have two servers sat on it running fine but would also like to add our new Dell server to it (and it has 2 psu's for redundancy).

  2. #2

    plexer's Avatar
    Join Date
    Dec 2005
    Location
    Norfolk
    Posts
    13,689
    Thank Post
    756
    Thanked 1,715 Times in 1,526 Posts
    Rep Power
    438
    Depends on the servers and their power requirements and also how long you want them to run for.

    Ben

  3. #3
    ICT_GUY's Avatar
    Join Date
    Feb 2007
    Location
    Weymouth
    Posts
    2,276
    Thank Post
    689
    Thanked 283 Times in 204 Posts
    Rep Power
    106
    It all depends on the type of server. I have one big beast and two small ones running off a 750.

  4. #4

    Hightower's Avatar
    Join Date
    Jun 2008
    Location
    Cloud 9
    Posts
    4,920
    Thank Post
    494
    Thanked 690 Times in 444 Posts
    Rep Power
    242
    I like a 1 to 1 ratio. One UPS per main server. Also plug the KVM into one of them and the monitor into the other.

  5. #5

    Michael's Avatar
    Join Date
    Dec 2005
    Location
    Birmingham
    Posts
    9,345
    Thank Post
    242
    Thanked 1,602 Times in 1,278 Posts
    Rep Power
    346
    The APC 1000 Smart provides 670W of power. I would advise against adding a third server. On the front there should be some LEDs. Is it near capacity? I think it's out of 5 LEDs.

    Ideally the APC software should be installed as it gives more accurate readings just how much power you're using. Even if you do decide to add a third server, this will (most likely) reduce your power redundancy considerably.

  6. #6
    Butuz's Avatar
    Join Date
    Feb 2007
    Location
    Wales, UK
    Posts
    1,579
    Thank Post
    211
    Thanked 220 Times in 176 Posts
    Rep Power
    63
    To be frank - one good server or two cheap/old servers.

    It may physically run 3 servers without exploding - but you'll only get 5 mins max of actual run time in an emergency. I plan on having 20-30 minutes run time available if possible to cater for large brownouts or the like.

    Andrew

  7. #7
    ICT_GUY's Avatar
    Join Date
    Feb 2007
    Location
    Weymouth
    Posts
    2,276
    Thank Post
    689
    Thanked 283 Times in 204 Posts
    Rep Power
    106
    Quote Originally Posted by Butuz View Post
    To be frank - one good server or two cheap/old servers.

    It may physically run 3 servers without exploding - but you'll only get 5 mins max of actual run time in an emergency. I plan on having 20-30 minutes run time available if possible to cater for large brownouts or the like.

    Andrew
    Now thats good advice right there.

  8. #8


    Join Date
    Jul 2007
    Location
    Rural heck
    Posts
    2,662
    Thank Post
    120
    Thanked 433 Times in 352 Posts
    Rep Power
    127
    Three is pushing it, bare mind you'll get a lower run time out of the unit as it gets older. Even it'll just run long enough now for your servers to shut down, it might not in 2 years time.

  9. #9

    Join Date
    Sep 2006
    Location
    Cornwall
    Posts
    139
    Thank Post
    8
    Thanked 0 Times in 0 Posts
    Rep Power
    0
    Cheers for the advice guys, I think I'll get a new UPS for the new server, the APC currently only shows 1 light out of 5 for the two servers but the new server is a fair way more powerful than the 2 old Viglens.

  10. #10
    torledo's Avatar
    Join Date
    Oct 2007
    Posts
    2,928
    Thank Post
    168
    Thanked 155 Times in 126 Posts
    Rep Power
    48
    Quote Originally Posted by Hightower View Post
    I like a 1 to 1 ratio. One UPS per main server. Also plug the KVM into one of them and the monitor into the other.
    i prefer to have one big ups do everything, [including core switches], three-phase in single phase out to the racks, and if need be for it to scale up with the option of additional power packs - the electrical cabling needs to be of sufficient thickness depending on the KVa's you want to be able to go up to.....it's pricier ofcourse but it also gives you option to scale up runtime with additional battery packs. I can't stand having several of these rackmount pdu's.

  11. #11
    Butuz's Avatar
    Join Date
    Feb 2007
    Location
    Wales, UK
    Posts
    1,579
    Thank Post
    211
    Thanked 220 Times in 176 Posts
    Rep Power
    63
    I hope your UPS does not fail then!

    I have two APC 3000's at the mo and will have 3 this year - all our servers will remain up if any 1 UPS fails.

    Butuz
    Last edited by Butuz; 5th April 2009 at 01:20 PM.

  12. #12

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    18,529
    Thank Post
    527
    Thanked 2,648 Times in 2,049 Posts
    Blog Entries
    24
    Rep Power
    925
    Quote Originally Posted by torledo View Post
    i prefer to have one big ups do everything, [including core switches], three-phase in single phase out to the racks, and if need be for it to scale up with the option of additional power packs - the electrical cabling needs to be of sufficient thickness depending on the KVa's you want to be able to go up to.....it's pricier ofcourse but it also gives you option to scale up runtime with additional battery packs. I can't stand having several of these rackmount pdu's.
    Not an option for many schools. Extending three phase supply to our server room, for example, would cost an absolute fortune. It is cheaper to buy another 5000VA UPS than to get that sort of power connectivity to the server room...

  13. #13
    torledo's Avatar
    Join Date
    Oct 2007
    Posts
    2,928
    Thank Post
    168
    Thanked 155 Times in 126 Posts
    Rep Power
    48
    Quote Originally Posted by localzuk View Post
    Not an option for many schools. Extending three phase supply to our server room, for example, would cost an absolute fortune. It is cheaper to buy another 5000VA UPS than to get that sort of power connectivity to the server room...
    i guess absolute fortune is relative, adding a three-phase circuit + switched isolator to your server room to wire in the ups from the nearest 400/415V distribution board with spare capacity shouldn't break the bank - it should certainly be cheaper than adding a 5000va ups. it's just a bit of additional electrical wiring, albeit with thicker, more expensive cable [ofcourse longer the run the more expensive]. if you want to locate the ups somewhere else, you wouldn't be extending any three phase circuits to the room, it's be single phase out from the ups.

    ofcourse i'm not familiar with the electrical setup in your school, so i can't comment on how much work that would involve.
    Last edited by torledo; 5th April 2009 at 01:56 PM.

  14. #14
    torledo's Avatar
    Join Date
    Oct 2007
    Posts
    2,928
    Thank Post
    168
    Thanked 155 Times in 126 Posts
    Rep Power
    48
    Quote Originally Posted by Butuz View Post
    I hope your UPS does not fail then!

    I have two APC 3000's at the mo and will have 3 this year - all our servers will remain up if any 1 UPS fails.

    Butuz
    N+1, aswell as internal bypass....no need to take the servers down for any battery removal or maintenance procedures on the ups. N+1 is more than adequate level of redundancy at the ups level.

  15. #15

    maniac's Avatar
    Join Date
    Feb 2007
    Location
    Kent
    Posts
    3,087
    Thank Post
    210
    Thanked 432 Times in 312 Posts
    Rep Power
    146
    I have two APC 2200 UPS devices in my server rack. All my servers have duel power supplies, so I have one PSU powered from each UPS. That way if one of my UPS devices goes down, everything carries on working. (apart from possibly the KVM as that's powered from just one of them) They are at about 50% capacity, giving a run time of about 10 minutes. My servers are set to shut down after just 2 minutes of power outage anyway, as if the power is out in the server room then it's more than likely out elsewhere in the building, meaning it's pretty pointless left running. It's all been tested as well, as we had a power issue over christmas, the system e-mailed me as it should do notifying me it was running on battery power, and all the servers shut down flawlessly. It all came back on again correctly when the power was restored as well - I was pretty pleased!

    Mike.



SHARE:
+ Post New Thread
Page 1 of 2 12 LastLast

Similar Threads

  1. APC UPS clicking constantly
    By ChrisH in forum Hardware
    Replies: 9
    Last Post: 10th April 2011, 02:13 PM
  2. APC UPS
    By davyboi in forum General Chat
    Replies: 3
    Last Post: 23rd January 2008, 12:42 PM
  3. APC UPS Help
    By Ste_Harve in forum Hardware
    Replies: 4
    Last Post: 13th September 2007, 12:26 AM
  4. APC UPS Serial cables
    By ChrisH in forum Hardware
    Replies: 15
    Last Post: 30th September 2006, 01:47 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •