Data Aggregation in a Hybrid Environment

This section briefly identifies areas to consider when aggregating Tenable Nessus Agent data from Tenable Nessus Manager into Tenable Security Center repositories. It is important to note that communications to the Tenable Nessus Manager for data retrieval initiate from Tenable Security Center. Once Tenable Nessus Agent data is imported, all normal Tenable Security Center operations such as vulnerability analysis, compliance, and workflow automation apply.

• Carefully consider agent group size to reduce the volume of data being imported into Tenable Security Center at a given time. Tenable recommends limiting the number of agents per scan in Tenable Nessus Manager or Tenable Vulnerability Management to 1,000 agents. Importing large amounts of data to Tenable Security Center while parallel operations are occurring impacts Tenable Security Center performance.
• Properly plan the number of Tenable Nessus scanners and Tenable Nessus Managers connected to Tenable Security Center, seeking guidance from Tenable technical support staff if needed.
• Properly plan the number of concurrent scans to include agent scans (agent data retrieval process), concurrent users, number of dashboards configured, and frequency/type of reports operating on a Tenable Security Center, seeking guidance from Tenable technical support staff if needed.