2V0-15.25 study notes

• VCF 9.0 log locations: SDDC Manager, VCF Installer, vCenter, ESX and NSX

  Which log on which appliance records the failed step, from domainmanager.log and lcm-debug.log to hostd, vpxa and the NSX logs.

• VCF 9.0: deploy, upgrade, converge or import?

  The four starting points, the path and tool each one leads to, and which existing components converge into VCF 9.0.

• VCF 9.0 certificate replacement: configured CA or external CA

  The two replacement paths side by side, the import rules for external certificates and the documented replacement failures.

• ESX host connection states: connected, not responding and disconnected

  What each state means, how hostd, vpxa and FDM fit in, and the first action for a host that is not responding.

• vSphere HA agent states and admission control failures

  What Agent Unreachable, Uninitialized, Host Failed, Network Partitioned and Network Isolated mean, and the documented fix for each.

• vSAN absent and degraded components: what happens on failure

  Absent and degraded compared, object accessibility rules and how vSAN behaves when a device, controller or host fails.

• NSX host transport nodes: preparation faults and connection states

  The channels between NSX Manager and a host, and the symptom, cause and fix for preparation and connection faults.

• HCX migration types and why they fail

  Bulk, Cold, vMotion, Replication Assisted vMotion and OS Assisted Migration compared, and the VM attributes that block each one.

About the book · 2V0-15.25 terms in the glossary