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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. 

To configure data replication, do the following:

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

3. Select one or more archives

form

4. from which you want to copy data

(1)

5. . You can also replicate video from the embedded camera storage (

4,

6. see

The

7. Embedded storage

object

8. ).
   Image Modified

9. 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
      title Attention!
      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.

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

the

11. cameras from which data

will be

12. are copied to the replication archive

(2)

13. .

 To

14. To select all cameras, click the Select all button.

    Info
    title Note
    Data 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. You cannot select cameras if they are already

writing

15. recording to the replication archive.

16. Select the replication 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).

17. Click the Apply Image Added button.

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

Data replication from the block archive to the object archive

If Axxon One performs continuous recording of streams from cameras to the block archive and you want to transfer data from the block archive to the object archive, you must:

1. Create a new object archive.
2. Replicate previously recorded data from the block archive to the object archive.
3. Disable replication and bind cameras to the object archive for subsequent recording.
4. Unbind cameras from the block archive, leaving only the object archive active.

As a result, all old recordings transferred from the block archive to the object archive are saved. New camera recordings are saved directly to the object archive.