Troubleshooting – cannot stop, start or remove VM snapshot

In the morning I was trying to remove snapshot from VM using vSphere client, to my surprise, I couldn’t remove it.  An error says:

Remove snapshot <VM name> Another task is already  in progress. < domain\user> <virtual machine name> console

I tried to stop VM, without success, error this same like above.

Second try-out, from command line using vmware-cmd command with removesnpahots syntax, failed with error:

VMControl error -999: Unknown error: SoapError: ServerFaultCode(0) : (Operation failed since another task is in progress.)

I  solved a problem by restarting vmware management agent on ESX host, # service mgmt-vmware restart. After process restart I was able remove snapshots and power VM down


Artur Krzywdzinski

Artur is Consulting Architect at Nutanix. He has been using, designing and deploying VMware based solutions since 2005 and Microsoft since 2012. He specialize in designing and implementing private and hybrid cloud solution based on VMware and Microsoft software stacks, datacenter migrations and transformation, disaster avoidance. Artur holds VMware Certified Design Expert certification (VCDX #077).