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Replication of the archive data refers to the copying of fixed-size blocks of information (video, audio, metadata) from one archive to another within the same Axxon-domain. The primary purpose of data replication is to ensure long-term storage and access to multimedia data on remote storage devices. Every archive can be both the sender and receiver of data. 

Note
titleAttention!
Replication
  • In a block archive, replication is performed as blocks of information accumulate and only to the end of
the
  • an archive.
Blocks
  • In an object archive, blocks of information can be replicated to any part of
the archive in the object
  • an archive.
  • To transfer the old data from Archive 1 to Archive 2 and continue recording new data to Archive 2, do the following:
    • Replicate the data
from
    • from Archive 1 to Archive 2, recording isn't performed to Archive 2.
    • Configure the camera recording
to
    • to Archive 2.
      The events indicating the start and successful completion of data replication are generated in the system (see Event control). These events can be used in macros (see Programming).
  • Archives can use block or object type of storage (see General information about server archives). To successfully replicate data from an object archive to a block archive, you must create the NGP_ARCHIVE_REPLICATE_FRAME_BY_FRAME environment variable with the value 1 (see Appendix 9. Creating system variable).

To configure data replication, do the following:

...