Everyone optimises, no one arbitrates
Green IT series — Article 1/4 A perfectly cooled datacentre, running workloads no one consults any more, will post an excellent PUE. That is the whole problem. And it is only the visible version of a much wider paradox. In short PUE measures the efficiency of the envelope, never the usefulness of the computation — and the same illusion plays out at organisational scale, where a green programme coexists with projects that have no reason to ever cross its path. Enterprise architecture is not there to constrain choices or arbitrate between visions. It is there to make the whole coherent — provided it sits in the right place, with the right levers. Sobriety and the circular economy of IT are not programmes running alongside the value stream. They are quality attributes within the value stream. ⎙ Imprimer / Télécharger en PDF A flawless indicator for an absurd system Let us start with the tool, since the tool is what gets brandished. ...