S4 — Demonstrate and Understand of Platform Health and Monitoring 13 cards
4.1
Command to run every NCC check?
ncc health_checks run_all
4.1
Tool to collect logs from a CVM?
Logbay, e.g.
logbay collect.
4.1
Metric chart vs entity chart?
A metric chart is one metric across several entities. An entity chart is several metrics for one entity.
4.1
Red heart in Prism Element. Which dashboard?
Health.
4.2
When should Pulse be disabled?
Only under the guidance of Nutanix Support.
4.2
Which Pulse feature protects private information?
Data obfuscation.
4.2
Weekly VM performance summaries to app owners?
Prism Central Reports on a schedule.
4.2
Alert severities?
Critical, Warning, Info.
4.3
What do Discoveries on the support portal do?
They identify clusters affected by known issues.
4.3
What does P1 mean on a support case?
The highest priority: production is down.
4.4
What is CPU ready time?
Time a vCPU was ready to run but waited for a physical CPU. When it stays high, the host's CPUs are contended or oversubscribed.
4.4
Which AHV feature finds compute/storage hotspots and rebalances VMs?
ADS (Acropolis Dynamic Scheduling).
4.4
High latency at very low IOPS. Panic?
Usually not. A few large I/Os skew the average, so read latency together with IOPS.