Data Source Redundancy

The OI Server Manager provides the ability to assign redundant data sources for fail-over protection in the event of data source failure.

Configure two identical data sources in the OI Server Manager having identical item syntax, connected to the same OI Gateway. You can also configure the primary device and secondary device parameters of a Redundant Device Object (RDO). Items can not be added for updates through the Redundant Device Object if the items do not exist in both controllers.

If the Primary data source fails, the OI Gateway will automatically switch over to the Secondary data source. The Secondary data source then becomes the active data source with the failed Primary data source reverting to the backup role. If the failed data source recovers to good status, it will remain in the standby mode.

Note: Redundant Device Object does not support the ArchestrA object. There can only be one ArchestrA object per hierarchy.