There are two things that are probably going to happen while eqiad is on stand by (although this needs to be confirmed 100% yet).
db1094 db1093 db1092 db1091 es1019
None of the above are masters, so they can be depooled and moved when needed.
The second task is to recable all the servers in row D, meaning that they will lose network connectivity for a while.
The database servers involved are the following (apart from the ones mentioned above):
es1018 es1017 db1071 db1070 db1069 (sanitarium) db1068 db1067 db1066 db1065 db1064 (sanitarium2 master) dbstore1002 dbstore1001 (backups server) db1063 db1062 db1061
The only critical servers are db1069 (sanitarium) and dbstore1001 which are fine anyways if they lose connectivity for some minutes.