No.

Check

Purpose

CLI Command

GUI method

Expected output

1

Cluster services

(Cluster and PC)

To ensure all services are running fine on all CVMs

cluster status

-N/A-

No services should be in 'DOWN' state

2

Metadata ring structure

To ensure that the metadata ring structure is stable

nodetool -h 0 ring

-N/A-

All the nodes must be listed and should have 'UP' and 'NORMAL' states

3

Data Resiliency

To ensure that the cluster can tolerate a CVM/host being put into maintenance for the upgrade activity

ncli cluster get-domain-fault-tolerance-status type=node

Data Resiliency tab on the bottom right section of the Prism Home page of the cluster

It should be 'OK' in green

4

CVM maintenance mode

To ensure that no CVM is already in maintenance mode

ncli host ls

-N/A-

Look for 'Under Maintenance Mode' parameter and ensure no CVM should be having 'true' value

5

Host Maintenance mode (AHV)

To ensure that no host is already in maintenance mode

For AHV:

acli host.list

-N/A-

Look for 'Schedulable' parameter and ensure no host has 'false' value

6

NCC health check (Cluster)

To ensure there are no critical failures in the cluster, which might interrupt the upgrades.

ncc health_checks run_all

Prism > Health > Run all NCC Checks

Refer the KBs listed after every failing check and fix critical issues accordingly.

7

NCC health check (Prism central)

To ensure there are no critical failures in the Prism Central VM(s), which might interrupt the upgrades.

ncc health_checks run_all

 -N/A-

Refer the KBs listed after every failing check and fix critical issues accordingly.