What's New in PI AF 2024 R2
- Last UpdatedNov 18, 2025
- 2 minute read
- PI System
- AF SDK 2024 R2
- Developer
The PI AF 2024 R2 (3.1.1) release adds support for redundant AIM servers. When connecting to a 2024 R2 PI Data Archive or AF Server that is connected to an AIM server that has redundancy enabled, the AFSDK will automatically failover to the next best Redundant Single-Sign-On (RSSO) server if the current one becomes unavailable.
Updates to Audit Trail to now allow users to enable auditing when AFServer has been configured to use Azure SQL Database, Azure Managed Instance or Amazon RDS.
This topic contains the following sections:
OSIsoft.AF Namespace
The method PISystemGetIdentityServerBestRsso(Boolean) retrieves the best RSSO available from the list provided by the primary SMS.
New options for AFGlobalSettings allow control of RSSO options:
- The property AFGlobalSettingsBestRssoRetrievalCooldown controls the cooldown period between checking the best RSSO server. Every call within the cooldown period will return the same result. The default is 5 seconds.
- The property AFGlobalSettingsRssoListTimeout controls the timeout period between retrieving a new list of valid RSSO Servers from the current AF Server or PI Data Archive. The default is 24 hours.
OSIsoft.AF.PI Namespace
The method PIServerGetIdentityServerBestRsso(Boolean) retrieves the best RSSO available from the list provided by the primary SMS.