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Replication of archives the archive data refers to constant, block-by-block the copying of fixed-size blocks of information (video, audio, metadata) from one archive to another archive within the same Axxon-domain. The primary purpose of data replication is to ensure long-term storage and access to multimedia recordings data on remote storage devices.

...

titleAttention!

...

Every archive can be

...

both the sender and

...

receiver of data. 

Note
titleAttention!

Replication occurs is performed as information blocks are accumulated. 1 block may contain more than a minute of video.

Note
titleAttention!

Replication is performed of information accumulate and only to the end of the archive. It is not possible to overwrite existing data in the Blocks of information can be replicated to any part of the archive in the object archive.

To transfer the old data from Archive 1 to Archive 2 and continue writing recording new data to Archive 2, do as followsthe following:

  1. Replicate the data from Archive 1 to Archive 2,
    2. while
  2. recording isn't performed to Archive 2
    3. cannot be written to
  3. .
  4. Configure the camera recording to
    5. write to
  5. Archive 2.
Info
titleNote

Events The events indicating the start and successful completion of data replication are generated in the system (see see Event Controlcontrol). These events can be used in macros (see Configuring Macros and Counterssee Programming).

To configure data replication, do the following:

  1. In the list of archives
    2. on
  2. of the Axxon-domain, select the archive to which you want to copy data from other archives.

  3. Select one or more archives

    4. form

  4. from which you want to copy data

    5. (1)

  5. . You can also replicate video from

    6. on-board

  6. the embedded camera storage (

    7. 4,

  7. see

    8. The

  8. Embedded storage

    9. object

  9. ).
    Image Modified

  10. In the Replication period parameter, select the replication period:

    1. Always—replication is performed continuously. 

    2. Time schedule—replication is performed within the specified time schedule (see Creating schedules). For example, to distribute the CPU load, you can configure replication to run at night.

    3. On demand—replication is started manually or using macros (see Manual archive replication, Start replication).

      Note
      titleAttention!
      • If you change the replication period in an existing replication archive, the archive recordings for the previous period are deleted.
      • If you use an object archive, it is possible to record data and replicate it to the same archive at a time if you select the On demand replication period. For example, in the case of continuous recording and a short-term (for example, five minutes) loss of connection with the camera, you can use a macro to replicate the data from the embedded storage to the same archive to which the continuous recording is made.

  11. In the Cameras for replication parameter, for each archive, select

    12. the

  12. cameras from which data

    13. will be

  13. are copied to the

    14. source

  14. replication archive

    15. (2)

  15. .

    16.  To

  16. To select all cameras, click the Select

    17. All

  17. all button.

    Info
    titleNote
    • Data
    18. for
    • from a particular camera can be copied to the replication archive only from one archive. When you select a camera for replication from an archive, the camera becomes unavailable for replication from any other archive.
    19. InfotitleNote
    • You cannot select cameras if they are already recording to the replication archive.

  20. Select the replication process period (3):

    1. Always – replication will be performed continuously. 

    2. Time zone – replication will be performed within the specified time schedule (see Creating schedules). For example, to distribute the CPU load, you can configure replication to run at night.

    3. On demand – replication will be started manually or using macros (see Manual Archive Replication, Start replication).

  21. Click the Apply Image Added button.

Data Configuring data replication configuration is complete. If the replication period was is set to Always, data replication starts immediately after the settings are applied.