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Browse Large Number of Tags

Historian OPC HDA Server supports Dual Address Space Model, Hierarchical address space, and Flat address space. Hierarchical address space allows you to browse data from large numbers of collectors and tags without affecting the HDA server browse performance.

Flat address space allows you to browse smaller number of tags. By default, the Flat address space is enabled. If you want to browse large number of collectors and tags, then you must enable Hierarchical address space. See Enabling Hierarchical Address Space for more information.