Unable to change port-group of VM. 'A general system error occurred: vDS host error' is seen in vCenter.

Products

• VMware vSphere ESXi

Issue/Introduction

• VM is connected to standard port-group. Error 'A general system error occurred: vDS host error' is seen when the VM is connected to any distributed port-group.
• vCenter tasks shows following error -
  Cannot create DVPort #### of VDS <switch-name> on the host <hostname>
fault. DvsApplyOperationFault.summary
An error occurred during host configuration
  
  
• In hostd logs we can see error that dvport is not saved.
  /var/run/log/hostd.log
warning hostd[2101151] [Originator@6876 sub=Hostsvc.NetworkProvider opID=m6azrm7k-####-auto-nyrk-h5:####9825-##-##-ca-ac67 user=vpxuser:VSPHERE.LOCAL\Administrator] Skip saving  dvport DSwitch_####-#### to /vmfs/volumes/32f2####-####aa7d/.dvsData/50 ## ## f6 09 ## ## 57-c8 98 0d bf a4 ## ## 0a/1297: failed to create dir

• Storage vMotion fixes the issue.

Environment

VMware vSphere ESXi

Cause

Log 'failed to create dir' indicates issue with datastore.

Resolution

This can happen because of underlying storage issue. Check datastore for any issue.
Please refer to this KB article,
Troubleshooting ESXi datastore or VMFS volume that is full or near capacity

Workaround -
Storage vMotion of affected VM.