VCF 9.0.2 to 9.1.0.0100 upgrade - VCF Automation upgrade precheck error - Platform Health Check Error - VCFMS-HEALTH-002

Products

• VCF Operations/Automation (formerly VMware Aria Suite)

Issue/Introduction

• VCF Operations and SDDC Manager have been upgraded to 9.1.0.0100
• The VCF Management Services have been installed successfully
• The 9.0.2 Fleet Manager is powered off as part of the process
• While upgrading VCF Automation - the prechecks fail with this error - 

"Platform Health Check Error [platform-opsmgmt-dns : lookup powered_off_fleet_manager_fqdn on x.x.x.x:53: no such host] [VCFMS-HEALTH-002]"

• x.x.x.x corresponds to an IP address within the VMSP cluster (198.18.0.0/15, 240.0.0.0/15 or 250.0.0.0/15 - see https://knowledge.broadcom.com/external/article/440630)

Environment

VCF 9.1.0.0100

Cause

The powered_off_fleet_manager_fqdn DNS entry has been removed.

The precheck attempts to resolve the powered_off_fleet_manager_fqdn to an IP address to do a ping test to confirm the IP address is not in use.

If it can't resolve the powered_off_fleet_manager_fqdn to an IP then the ping test can't be performed, hence the "no such host" message is returned and the precheck fails.

Resolution

• Reinstate the powered_off_fleet_manager_fqdn DNS entry, using the IP it previously resolved to.
• If that IP is not available (that is - it is assigned to something else and is replying to ping), then another unused IP address in the same range must be used instead.
• Retry the workflow.
• The workflow is expected to complete successfully now given that the  powered_off_fleet_manager_fqdn resolves to an IP address that does not reply to ping.

Additional Information

• Additional context on the Platform Health Check Error [platform-opsmgmt-dns] is available here - https://knowledge.broadcom.com/external/article/389510/vcf-services-platform-cluster-health-che.html