We are going to expand in FQ4 FY2015-2016 with 6x machines in codfw/eqiad. Note this was originally intended as a full refresh of the older 2TB machines, instead we're adding capacity and will refresh older hardware in a year or so.
- hardware procurement, particularly how many machines vs 3TB/4TB disks
- rack allocation, see also https://phabricator.wikimedia.org/T118183#1820772
- based on hw (disk size, controller, etc), decide on swift weight to assign