Monitoring, Troubleshooting, and Lifecycle Operations
This domain tests day-2 operations: monitoring health, diagnosing VDI symptoms, and performing lifecycle upgrades without disrupting users. It combines Prism, NCC, Frame Console, and change control.
Core rules
- Prism Element shows cluster health; Prism Central gives multi-cluster dashboards, alerts, and capacity trends. Know which scope you are viewing.
- NCC health checks validate configuration and known prerequisites. Run them before and after upgrades; use nCLI for targeted checks and log collection.
- LCM inventories and updates AOS, AHV, firmware, and other components. Follow compatibility matrices, snapshot or back up, and schedule maintenance windows.
- For VDI, monitor pool capacity, session failures, logon duration, AHV CPU ready, CVM latency, storage IOPS, network drops, and profile-share latency.
- Troubleshoot in layers: user entitlement, broker, image, VM power, guest OS, network, storage, profile. Change one variable at a time.
- Keep image versions and rollback plans; drain and rebuild pools rather than patching every non-persistent desktop.
Worked example
Users report 60-second logons after an image update. Check Frame pool health and session errors, then AHV host CPU ready and CVM latency, then DNS and AD site, then FSLogix share latency. If the previous image version logged on in 20 seconds, roll back the canary and compare GPO and profile-container settings. Reasoning: the update is the recent change; layered checks isolate broker, infrastructure, and profile causes without guessing.
Traps
Watching only guest CPU; upgrading LCM during peak hours; skipping NCC; ignoring profile-share latency; rebuilding all pools at once; assuming a Frame console error proves AHV is unhealthy.