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Controller-level custom dashboards in AppDynamics have the flexibility to provide views that aggregate and compare data from different applications on the same Controller, as well as offer a customized view of applications, servers, and database performance data. This capability enables a holistic view of the IT environment, facilitating cross-application insights and the ability to correlate performance across different layers of the technology stack. Such dashboards are invaluable for understanding overarching trends, pinpointing systemic issues, and driving informed decision-making across multiple applications and infrastructure components.

AppDynamics documentation on Custom Dashboards: Provides detailed instructions on creating and customizing dashboards at the Controller level, including the aggregation and comparison of data from various sources.

AppDynamics documentation on Controller UI: Explains the functionalities available within the Controller UI, including the creation of comprehensive dashboards that encompass application, server, and database metrics.

To identify if automatic remediation actions have been taken for a health rule violation in AppDynamics, a Performance Analyst should expand the 'Description' field of the health rule violation event. This section will provide details on the actions executed as part of the automatic remediation process. These details help analysts understand the steps taken by the system to mitigate the issue without manual intervention. Reference: AppDynamics documentation on Health Rule Violations and Automated Actions.

Key Performance Indicators (KPIs) such as 'CPU %Busy' and 'Memory Used%' are critical for providing insights into server-level resource consumption. 'CPU %Busy' indicates the percentage of time the CPU is actively working on processes, reflecting the server's processing workload. 'Memory Used%' shows the proportion of memory utilized, indicating how much of the server's RAM is being consumed by applications and processes. These KPIs are essential for understanding and managing server performance and resource allocation.

AppDynamics documentation on Server Monitoring: Includes information on monitoring server-level metrics, including CPU and memory utilization, to assess resource consumption.

URI Segments should be used in Transaction Detection rules when the application is web-oriented. Web-oriented applications often have meaningful information in the URI that can identify different business transactions. URI Segments can help in defining patterns that match specific parts of the URI to distinguish different transactions.

AppDynamics documentation on Transaction Detection: https://docs.appdynamics.com/latest/en/application-monitoring/business-transactions

The permission to enable snapshot archiving in AppDynamics typically falls under advanced operational capabilities, such as those categorized under 'Agent Advanced Operation.' This permission allows users to archive transaction snapshots for long-term storage and analysis, which is essential for historical performance analysis and auditing purposes.

AppDynamics documentation on Role-Based Access Control: Explains the different permissions and roles within AppDynamics, including those related to advanced agent operations and snapshot archiving.