In collection replication, the source and destination must have the same encryption configuration because the destination data is expected to be an exact replica of the source data. In particular, the encryption feature must be turned on or off at both the source and destination. If the feature is turned on, the encryption algorithm and the system passphrases must also match. The parameters are checked during the replication-association phase.
During collection replication, the source transmits the data in encrypted form, and transmits the encryption keys to the destination. The data can be recovered at the destination because the destination has the same passphrase and the same system encryption key.
Note: Collection replication is not supported for cloud-tier-enabled systems.
