S3 — Describe Cluster Configuration and Maintenance 14 cards
3.1
Where is RBAC configured?
In Prism Central.
3.1
NCC alerts for new nodes aren't arriving by email. First fix?
Check / configure SMTP.
3.1
FT1 + RF2 cluster: how many failures on different domains can it tolerate?
One.
3.1
A host in a 4-node AHV cluster with spare capacity loses all networking. What happens to its VMs?
HA restarts them on the remaining hosts.
3.1
How do you reach a registered cluster's Prism Element from Prism Central?
Use the cluster quick-access in the main dashboard widget.
3.2
What happens to VMs when an AHV host enters maintenance mode?
They are live-migrated off. Non-migratable VMs (e.g. Agent VMs) are powered off.
3.2
What is a storage-only node?
A node that adds storage capacity and runs no user VMs.
3.2
What is OOB management used for?
Remote console, power control, bare-metal imaging, and Redfish firmware updates through LCM.
3.3
How do you upgrade the LCM framework itself?
Run an LCM inventory. It updates the framework first if a newer version exists.
3.3
Which LCM feature simplifies upgrades on clusters without internet?
Direct Upload.
3.3
Where do you extract the LCM framework bundle on a dark-site web server?
Into the
release directory.
3.3
What should you check before upgrading AOS or the hypervisor?
The Compatibility and Interoperability Matrix (and the upgrade paths).
3.3
Main benefit of Redfish with LCM?
BMC and BIOS updates finish about twice as fast because they need fewer reboots.
3.3
What happens to guest VMs during an AOS upgrade?
The CVMs restart one at a time. Guest VMs keep running and their I/O is served by the other CVMs.