Two installed VCO instances are required to initiate replication.
- The selected standby is put into a
STANDBY_CANDIDATEstate, enabling it to be configured by the active server. - The active server is then given the address and credentials of the standby and it enters the
ACTIVE_CONFIGURINGstate.
STANDBY_CONFIG_RQST is made from active to standby, the two servers synchronize through the state transitions shown below.