HashiCorp Vault provides a suite of tools for monitoring and managing its deployment, including querying its HTTP APIs for telemetry data, using the `vault debug` command for comprehensive data collection, and interacting with its web-based UI for basic configuration tasks. The `/sys/health` and `/sys/replication` endpoints are particularly useful for assessing server health and replication status, providing insights into data encryption and synchronization processes. The `vault debug` command offers extensive data collection capabilities, including metrics and profiling data, stored in a single archive for ease of analysis. Vault's UI, while user-friendly for simple configurations, lacks the advanced monitoring capabilities of third-party solutions. For more detailed analysis, Vault can forward its telemetry data to external platforms like Datadog, which enhances long-term trend analysis by integrating metrics, logs, and alerts from Vault with broader infrastructure data. Server and audit logs are critical for troubleshooting and security, with server logs detailing operational processes and audit logs documenting client interactions for security oversight. Overall, while Vault's built-in tools offer immediate insights, comprehensive monitoring is best achieved by leveraging third-party integrations.