AlertStackis a specialized AIOps feature within Hybrid Cloud Observability (HCO) designed to simplify incident response. According to theSolarWinds HCO Alertingdocumentation, anAlertStack clusteris an autogenerated grouping of related active alerts on related entities.
The primary goal of clustering is to reduce "alert fatigue." Instead of presenting a technician with twenty individual alerts (e.g., one for high CPU on a server, one for an application failure, and three for slow database response), AlertStack analyzes the relationships and dependencies between those entities. If the platform determines that the alerts are part of a single root-cause event-such as a storage array failure impacting multiple virtual machines and their applications-it automatically clusters them into a single visual timeline. This clustering isautogeneratedby the platform's machine learning engine based on the AppStack dependency map; it does not require a user to manually group the alerts. This allows the IT team to identify the "blast radius" of an incident and focus on the primary failure point rather than triaging dozens of symptoms individually.