Table 69describes the details of the Redundancy Visible ServerFacet. This Facet specifies the support for non-transparent redundancy. Failover for this type of redundancy requires the Clientto monitor Serverstatus and to switch to a backup Serverif it detects a failure. The Servershall expose the methods of failover it supports (cold, warm or hot). The failover method tells the Clientwhat it must do when connecting to a Serverand when a failure occurs. Cold redundancy requires a Clientto reconnect to a backup Serverafter the initial Serverhas failed. Warm redundancy allows a Clientto connect to multiple Servers, but only one Serverwill be providing values. In hot redundancy multiple Serversare able to provide data and a Clientcan connect to multiple Serversfor the data.

Table 69– Redundancy Visible Server Facet


Conformance Unit / ProfileTitle



Redundancy Server