vCenter server DRS automation level changes to Fully automatic even after changing it to Manual

Products

• VMware vCenter Server 7.0

Issue/Introduction

• You change DRS Automation level to Manual.
• Within a minute or 2 it changes to Fully automated.
• An existing task (if configured / present) that changes the DRS to fully automated state.
• In VPXD logs (/var/log/vmware/vpxd) on vCenter server SSH session we see similar entries.

              2024-12-31T14:44:01.549+05:30 info vpxd[07173] [Originator@6876 sub=vpxLro opID=ProcessScheduledTaskFiring-77188b05] [VpxLRO] -- BEGIN task-4443813 -- domain-c8 -- vim.ComputeResource.reconfigureEx -- 528c45e4-4b94-61cd-2c21-a616b588ce7a
              2024-12-31T14:44:01.550+05:30 info vpxd[07173] [Originator@6876 sub=drmLogger opID=ProcessScheduledTaskFiring-77188b05] DRS automation level of cluster [vim.ClusterComputeResource:domain-c8,Dial-NVDI-vSAN-Cluster] is fullyAutomated.

Environment

vCenter 7.X

 

Cause

This issue happens when there is a task created, either manually or by any 3rd party solution that requires DRS to be in Fully Automatic state. 

Resolution

In order to fix this issue, remove the scheduled task that is created at cluster level:

• Take a snapshot of vCenter. (Please take offline snapshots of all vCenter nodes if ELM is configured)
• Click on specific cluster in vCenter.
• Go to configure  tab in right hand side pane.
• Select scheduled tasks and you will find a task at cluster level. 

• Remove the task.
• After removing the task, DRS will not change the "Automation level" on its own.