# Archive and Non Archive Mode

* ***Archive mode of replication*** inserts a new record in Cassandra when the existing record is updated in source apps. This feature helps to maintain historical record.
* ***Non Archive mode of replication*** updates the existing record in Cassandra when the existing record is updated in source apps.

### Switching between Archive and Non Archive mode: <a href="#archiveandnonarchivemode-switchingbetweenarchiveandnonarchivemode" id="archiveandnonarchivemode-switchingbetweenarchiveandnonarchivemode"></a>

To identify and change the mode of the replication, the below mentioned steps must be followed.

* Locate the properties file ***config.properties*** by accessing the Cassandra folder saved in the below path

&#x20;         Installation Folder (DBSyncCReplSF3) > dbsync-repl > WEB-INF > db > Cassandra

![](https://help.mydbsync.com/docs/download/attachments/31983176/Cassandra.png?version=1\&modificationDate=1545854182000\&api=v2)

* Open the file config.properites to indentify the command ***cassandra.archive=true*** or ***cassandra.archive=false***

![](https://help.mydbsync.com/docs/download/attachments/31983176/worddave43343ed289053ed6427e41e37f06bac.png?version=1\&modificationDate=1545854183000\&api=v2)

* ***cassandra.archive=true*** is for Archive mode of replication and ***cassandra.archive=false*** is for Non Archive mode of replication. Based on the requirement true or false must be used before running the replication in DBSync Replication tool.

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