Removing a host in SDDC Manager fails with "Entity: [CLUSTER_NAME] with failed check: Cluster Distributed Resource Scheduler (DRS)with severity CRITICAL"

Products

• VMware SDDC Manager

Issue/Introduction

• Removing a host in SDDC Manager fails with the below error :-
  
  REMOVE_HOST operation validation failed due to: Entity: [CLUSTER_NAME]  with failed check: Cluster Distributed Resource Scheduler (DRS)with severity CRITICAL, Entity: [CLUSTER_NAME] with failed check: Maintenance Mode dry run - Miscwith severity CRITICAL

Environment

• VCF 5.2.1

Cause

The host is part of a cluster where DRS was set to manual mode and the host was already in maintenance mode.

Resolution

1) To resolve the issue, set the DRS mode of the cluster to fully automated mode :-
        a) Login to the vSphere Client
        b) Navigate to your cluster
        c) Click Configure -> vSphere DRS
        d) Click Edit
        e) Select Fully Automated from the Automation Level dropdown menu.
        f) Click OK

2) Remove the host from maintenance mode :-
        a) Right click on the host from vCenter
        b) Choose the option "Maintenance Mode"
        c) Select "Exit maintenance mode".

3) Retry the task of removal of the host from the SDDC manager.

Additional Information

Remove a Host from a vSphere Cluster in a Workload Domain