This task will track/coordinate the work between #ops-eqiad and #netops to upgrade the new row D switch stack to have 3 10G switches, rather than just 2. Row D should be made to match the other rows in the setup of (5) 1G racks and (3) 10G racks.
Scheduled for **Sept. 28th, 1pm UTC, 2h**
**This means a hard downtime of ~1h for all hosts in `D4`**, see the full list on https://netbox.wikimedia.org/dcim/devices/?q=&rack_id=38&status=active&role=server
[x] [DCops] Receive in switches off T195451 - https://netbox.wikimedia.org/dcim/devices/855/
[] Re-cable row D - T256112
[] [DCops] Receive SFP-Ts from T261303
[] [DCops] Connect switch to console
[] [DCops] Pre-polulate SFP-Ts
[] [Netops] Check new member's config and OS version (and turn on/off VC ports)
In maintenance window, preferably during a DC failover as row recabling can bring temporary instability:
[] [Service owners] Depool services
[] [Netops] Power off existing member
[] [DCops] Unplug existing member
[] [DCops] Rack and power on new member in final location
[] [Netops] Update switch stack config with new serial number
[] [DCops] Connect VC-cables
[] [DCops] Connect access ports
[] [Netops] Verify everything is online
[] [Service owners] repool services
[] [DCops] Wipe/decom old switch