Usually you would have some number of enclosed aisles of racks make up a deployment pod. You can usually customize machine configuration within a deployment po

Usually you would have some number of enclosed aisles of racks make up a deployment pod. You can usually customize machine configuration within a deployment pod while staying within the electrical and thermal envelope of the aisle and without changing the number of core-spine to pod-spine network links. You could potentially build out a data hall but not fully fill it with aisles. As demand starts to trend up you can forecast two quarters into future and do the build-outs with just one quarter lead time. I would expect very large operators to have perfected this supply chain song and dance very well.