Rockwell Automation FactoryTalk Historian SE ProcessBook 3.2 User Guide - Manual (Page 327)

Chapter 11
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System Administrator Notes
High Availability Configuration Settings
On workstations where FactoryTalk Historian ProcessBook is used to write
data or access data that is not available on secondary members of a
collective, a configuration setting has been provided that modifies the
default connection preference.
By editing the procbook.ini file you can configure the preference for
a particular collective. Entries of the form <collective
name>=<preference> in the [COLLECTIVE PREFERENCE]
section of the procbook.ini file control how ProcessBook establishes
a connection to a server in a particular collective. The value represented
above by <collective name> represents the name listed for the
collective in the PI Connection Manager. The value represented above by
<preference> must be one of the following values:
PreferPrimary The primary server in the collective is preferred but not required.
RequirePrimary The primary server is required.
Any Any server in the collective is acceptable.
For FactoryTalk Historian ActiveView, connection preferences are configured
in acview.ini .
In general, if the advanced feature requires a primary server to operate
correctly, specifying PreferPrimary connects you to the primary member
whenever it is available. When the primary is unavailable, a secondary
server is used and all features of ProcessBook that don't require the