VxRail Host Removal task from SDDC Manager fail at subtask "Remove host from VCenter through VxRail Manager API"

Products

• VMware SDDC Manager

Issue/Introduction

• Node deletion from the cluster via SDDC Manager fails at the following subtask: "Remove host from VCenter through VxRail Manager API"
• Error message similar with
  

  Description    Remove host from VCenter through VxRail Manager API
  Progress Messages    Internal server error
  Failed to remove host because of uncleared critical alarms on cluster 'Cluster Name' .
  Error
  Message: Internal server error
  Remediation Message:
  Reference Token: XXXXXXX
  Cause: Failed to remove host from vCenter Error in executing VxRail async request 'request id' Error in executing VxRail async request 'request id' java.lang.IllegalStateException: Expected a string but was BEGIN_OBJECT at line 1 column 147 path $.error Expected a string but was BEGIN_OBJECT at line 1 column 147 path $.error
  
  Error
  Message: Failed to remove host because of uncleared critical alarms on cluster 'Cluster Name'.
  Remediation Message: Address critical issues and retry the task.
  Reference Token: YYYYY
  Cause:
  

• vCenter Server Event shows alarm such as
  

  Created alarm 'VXRAIL Cluster ALARM Host remove unsuccessful' on Datacenters

Environment

VCF  5.2.x

Resolution

The task failed because an alarm, which originated on the VxRail side, was raised in vCenter.

Contact the VxRail team/support to inquire about the cause and the necessary remediation/resolution for the alarm that occurred on the VxRail side.