Restoring VM from Commvault backups to vSAN datastore fails

Products

• VMware vSAN

Issue/Introduction

• Restore operation triggered from Commvault is failing with error to open the disks: Set pending cause [Error opening the disks for virtual machine [VM_Name]. Verify that the correct transport mode is selected
  
  
• Hostd logs also suggest that disks creation task/job is initiated but failed to open the disks
  YYYY-MM-DDTHH:MM:SS Hostd[2101774] [Originator@6876 sub=Vmsvc.VmDiskMgr opID=48abb870-01-d9-2371 sid=52e6cfca user=vpxuser:DGH\svccommvault] Disk created successfully.
YYYY-MM-DDTHH:MM:SS Hostd[2101778] [Originator@6876 sub=Libs opID=nbdmode-000000cb6fd83ad0] [NFC ERROR]NfcFile_Open: Open failed: retval = 13 filename = /vmfs/volumes/vsan:#########-#################/########-####-####-####-##########/VM-Name_1.vmdk

Environment

VMware vSAN 8.x

Cause

Issue is caused due to misconfiguration at Commvault level. When CV software on a proxy is re-installed, the restores work for a period of time and then it starts failing again.

Resolution

Involve Commvault vendor for further investigation.

Additional Information

Reference: http://kb.commvault.com/article/63206