mongos

MONGOS BJHT 2 + CN-N01-BJ03-CP01 2

config server

PRIMARY CN-N01-BJ03-CP01 * 1
SECONDARY CHN-GZLY + BJHT

mongod

PRIMARY CN-N01-BJ03-CP01 1
SECONDARY BJHT 2 + CN-N01-BJ03-CP01 2
ARBITER CHN-BJSM 1