OPC connections and References Tag

In my project, I have two OPC connections from one pair of TwinCAT controllers (e.g. 1A and 1B). And I have approximately 250K OPC tags in one tag provider. In terms of redundancy, if i want to switch all the tags from one OPC connection to the other by changing OPC Server name using Reference tag naming 1A and 1B. Is it possible and having any impact on performance of Ignition.