"A/C power consumption is not that easily derived, unlike DC. I'll continue to use the laws of physics."
It is very easily derived. I do it all the time... If I want to know how much power a rack is using, I measure the amps on each leg of the PDU, then multiply by the volts. If the rack has a smart strip, I use that. Pretty simple. Joe On Wed, May 5, 2021 at 11:55 PM Wayne Bickerdike <[email protected]> wrote: > Jo Monk said: > > > > Last I checked, PDUs are not sold by watts, but by volts/amps. > > Sure they are. Doesn't magically turn into power. A/C power consumption is > not that easily derived, unlike DC. I'll continue to use the laws of > physics. > > On Thu, May 6, 2021 at 1:41 AM Peter <[email protected]> wrote: > > > Thank you for the clarification. Now it help me to research further. > > > > On Wed, 5 May, 2021, 7:29 pm Billy Ashton, <[email protected]> > wrote: > > > > > You also might need to consider if you have redundant power supplies or > > > redundant/diverse power sources. There will not be a single definition > > > of power consumption based on the number of units or even the number of > > > devices. A 12U rack used as a patch panel will have no consumption, but > > > a 12u UPS rack will have much more. > > > > > > ------ Original Message ------ > > > From: "Seymour J Metz" <[email protected]> > > > To: [email protected] > > > Sent: 5/5/2021 6:55:48 AM > > > Subject: Re: Datacentre Rack power clarification > > > > > > >That depends on the use profile. What equipment is in continuous use > and > > > what is standby. Are you counting power for cooling? > > > > > > > > > > > >-- > > > >Shmuel (Seymour J.) Metz > > > >http://mason.gmu.edu/~smetz3 > > > > > > > >________________________________________ > > > >From: IBM Mainframe Discussion List [[email protected]] on > > behalf > > > of Peter [[email protected]] > > > >Sent: Wednesday, May 5, 2021 2:25 AM > > > >To: [email protected] > > > >Subject: Datacentre Rack power clarification > > > > > > > >Hello > > > > > > > >Apology for posting a non mainframe questions here . > > > > > > > >Is there a way to determine the total power consumption of rack with > 12u > > > as > > > >form factor ? > > > > > > > >I am sure some of them would have used a benchmark to design a > solution > > > for > > > >any new server coming inside the data center floor. > > > > > > > >So any clue or your experience would help me to analyse further. > > > > > > > >Peter > > > > > > > >---------------------------------------------------------------------- > > > >For IBM-MAIN subscribe / signoff / archive access instructions, > > > >send email to [email protected] with the message: INFO > IBM-MAIN > > > > > > > >---------------------------------------------------------------------- > > > >For IBM-MAIN subscribe / signoff / archive access instructions, > > > >send email to [email protected] with the message: INFO > IBM-MAIN > > > > > > ---------------------------------------------------------------------- > > > For IBM-MAIN subscribe / signoff / archive access instructions, > > > send email to [email protected] with the message: INFO IBM-MAIN > > > > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > > -- > Wayne V. Bickerdike > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
