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    Server UPS Recommendations

    Scheduled Pinned Locked Moved IT Discussion
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    • MattSpellerM
      MattSpeller @BRRABill
      last edited by

      @BRRABill Yup, sure is. To be honest, if you're just powering computers it makes very little difference. You could actually feed the computers pure DC (no AC sine wave) and they'd work just fine. Where you get into trouble is stuff like electric motors, air conditioners, anything that plugs straight into the wall without a power supply (wall wart).

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      • scottalanmillerS
        scottalanmiller
        last edited by

        You can buy DC powered servers. They create less heat and suck less overall power.

        MattSpellerM 1 Reply Last reply Reply Quote 0
        • MattSpellerM
          MattSpeller @scottalanmiller
          last edited by

          @scottalanmiller said:

          You can buy DC powered servers. They create less heat and suck less overall power.

          whoa, TIL

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          • BRRABillB
            BRRABill
            last edited by

            What do you think about the "S" line versus the "P" line.

            Big cost savings.

            JaredBuschJ 1 Reply Last reply Reply Quote 0
            • JaredBuschJ
              JaredBusch @BRRABill
              last edited by

              @BRRABill said:

              What do you think about the "S" line versus the "P" line.

              Big cost savings.

              The P line has 2 distinct output groups. The S does not. Basically a feature you may or may not desire or need. Personally, I would skip it and go with the S as long as it works with their software. The software monitoring account for a lot IMO.

              img

              BRRABillB 1 Reply Last reply Reply Quote 1
              • BRRABillB
                BRRABill @JaredBusch
                last edited by

                @JaredBusch

                I'm probably going to do that, go with the S.

                What is the advantage of "2 distinct output groups"?

                BRRABillB 1 Reply Last reply Reply Quote 0
                • BRRABillB
                  BRRABill @BRRABill
                  last edited by

                  @BRRABill said:

                  What is the advantage of "2 distinct output groups"?

                  Is it bad manners to quote oneself? LOL.

                  Or not advantage, but reasoning why it would be used?

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                  • JaredBuschJ
                    JaredBusch
                    last edited by

                    1. For monitoring distinctly. Very useful if you have different devices plugged in to know their power levels explicitly.
                    BRRABillB 1 Reply Last reply Reply Quote 0
                    • BRRABillB
                      BRRABill @JaredBusch
                      last edited by

                      @JaredBusch said:

                      1. For monitoring distinctly. Very useful if you have different devices plugged in to know their power levels explicitly.

                      I researched this a bit on their site. Pretty cool.

                      Monitors on one side, shutting down sooner.

                      Interesting concept.

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                      • BRRABillB
                        BRRABill @scottalanmiller
                        last edited by

                        @scottalanmiller said:

                        The recommended design is two UPS, one for each rail. Each PSU goes into one rail, each rail into one UPS each UPS into as separate circuits as you can get.

                        What do you mean by "rail" here?

                        JaredBuschJ 1 Reply Last reply Reply Quote 0
                        • JaredBuschJ
                          JaredBusch @BRRABill
                          last edited by

                          @BRRABill said:

                          @scottalanmiller said:

                          The recommended design is two UPS, one for each rail. Each PSU goes into one rail, each rail into one UPS each UPS into as separate circuits as you can get.

                          What do you mean by "rail" here?

                          In this sense, rail means the left or right rear post of the server rack. A lot of server racks have a power bar going up and down the rails.

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                          • BRRABillB
                            BRRABill @JaredBusch
                            last edited by

                            @JaredBusch said:

                            In this sense, rail means the left or right rear post of the server rack. A lot of server racks have a power bar going up and down the rails.

                            Thanks.

                            We are all tower servers here.

                            The only rack we have here is an equipment rack.

                            Man, I need a road trip to some of the places you guys work. 🙂

                            JaredBuschJ MattSpellerM 2 Replies Last reply Reply Quote 0
                            • BRRABillB
                              BRRABill @JaredBusch
                              last edited by

                              @JaredBusch said:

                              In this sense, rail means the left or right rear post of the server rack. A lot of server racks have a power bar going up and down the rails.

                              So, multiple servers could be plugged into each rail?

                              So @scottalanmiller is saying the recommended solution is to plug all server into one side of the rack (rail), and then that rail itself into a UPS?

                              That would seem hard to calculate the proper wattage unless the rack was full.

                              JaredBuschJ 1 Reply Last reply Reply Quote 0
                              • JaredBuschJ
                                JaredBusch @BRRABill
                                last edited by

                                @BRRABill said:

                                @JaredBusch said:

                                In this sense, rail means the left or right rear post of the server rack. A lot of server racks have a power bar going up and down the rails.

                                Thanks.

                                We are all tower servers here.

                                The only rack we have here is an equipment rack.

                                Man, I need a road trip to some of the places you guys work. 🙂

                                Most SMB do not have them. It is a term from Enterprise and colocation datacenters.

                                Since you have 2 power supplies in your servers, you plug PS1 into the left rial and PS2 into the right rail on all your hardware.
                                You plug the left rail into one UPS and the right rail into a different UPS. Then each UPS is also plugged into a different circuit.

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                                • JaredBuschJ
                                  JaredBusch @BRRABill
                                  last edited by

                                  @BRRABill said:

                                  @JaredBusch said:

                                  In this sense, rail means the left or right rear post of the server rack. A lot of server racks have a power bar going up and down the rails.

                                  So, multiple servers could be plugged into each rail?

                                  So @scottalanmiller is saying the recommended solution is to plug all server into one side of the rack (rail), and then that rail itself into a UPS?

                                  That would seem hard to calculate the proper wattage unless the rack was full.

                                  Why would it be hard? You know that you plugged in 4 servers into each rail. Each PS is 500W. So each rail has 2kW.

                                  BRRABillB 1 Reply Last reply Reply Quote 0
                                  • MattSpellerM
                                    MattSpeller @BRRABill
                                    last edited by

                                    @BRRABill said:

                                    Man, I need a road trip to some of the places you guys work. 🙂

                                    You and me both, I think it'd be an eye opening experience for everyone

                                    BRRABillB 1 Reply Last reply Reply Quote 0
                                    • BRRABillB
                                      BRRABill @JaredBusch
                                      last edited by

                                      @JaredBusch said:

                                      Why would it be hard? You know that you plugged in 4 servers into each rail. Each PS is 500W. So each rail has 2kW.

                                      Do you always have each rack pre-filled with servers?

                                      I was thinking where you had 1 server or 2 in a rack. Do you buy capacity for now, or when the rack is filled?

                                      MattSpellerM 1 Reply Last reply Reply Quote 0
                                      • BRRABillB
                                        BRRABill @MattSpeller
                                        last edited by

                                        @MattSpeller said:

                                        You and me both, I think it'd be an eye opening experience for everyone

                                        I'm lucky that my wife (also in IT) has always worked in larger environments. So I get to see a lot of "the other side" in my little SOHO world.

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                                        • JaredBuschJ
                                          JaredBusch
                                          last edited by

                                          @BRRABill said:

                                          @JaredBusch said:

                                          Why would it be hard? You know that you plugged in 4 servers into each rail. Each PS is 500W. So each rail has 2kW.

                                          Do you always have each rack pre-filled with servers?

                                          I was thinking where you had 1 server or 2 in a rack. Do you buy capacity for now, or when the rack is filled?

                                          You plan your capacity on what you have or realistically expect to get in the near term. always. You don't plan for some unknown future amount of servers.

                                          BRRABillB 1 Reply Last reply Reply Quote 0
                                          • MattSpellerM
                                            MattSpeller @BRRABill
                                            last edited by

                                            @BRRABill said:

                                            @JaredBusch said:

                                            Why would it be hard? You know that you plugged in 4 servers into each rail. Each PS is 500W. So each rail has 2kW.

                                            Do you always have each rack pre-filled with servers?

                                            I was thinking where you had 1 server or 2 in a rack. Do you buy capacity for now, or when the rack is filled?

                                            For UPS it's best to talk to the business and see what their plans are. You know you need batteries for the things every 3 years and that's a good time to swap out if you need bigger (bigger being the only real reason to change UPS).

                                            JaredBuschJ 1 Reply Last reply Reply Quote 0
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