Our Phabricator servers are getting old and will be routinely replaced.
T279176 is hardware refresh for phab1001
T280540 is to rack phab1002 (eqiad)
T279177 is hardware refresh for phab2001
T280544 is to rack phab2002 (codfw)
New hosts have been added to "insetup" role in https://gerrit.wikimedia.org/r/c/operations/puppet/+/681197 and will get DHCP and OS install
in the tasks linked above.
Then they will be handed over to serviceops to move into production.