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Backup mechanism: VADP VDDK Error code: 3014 VM Backup FAILED or Completed with Exceptions with warnings like below: message#1 : Unable to collect list of allocated blocks for 'Hard disk 2'. Unable to query allocated blocks of virtual disk ... Unable to open source VMDK '[Datastore-xyz.vmdk'. VDDK Error: 3014: Insufficient permissions in the host operating system. message#2 : CBT data not available: Synthesizing used block list to cover entire logical disk.message#3 : Unable to collect list of allocated blocks for 'Hard disk 3'. Unable to query allocated blocks of virtual disk ... Unable to open source VMDK '[Datastore-nnn] nnn/VM_1.vmdk'. VDDK Error: 3014: Insufficient permissions in the host operating system. message#4 : CBT data not available: Synthesizing used block list to cover entire logical disk. Error : Backup has FAILED. Unable to backup virtual disk "Hard disk 3". Unable to initialize Block Reader. Unable to open source VMDK '[Datastore-nnn] nnn/VM_1.vmdk'. VDDK Error: 1: Unknown error. (500) Log Entry Examples: Log : BackupVmSessions-<SessionID>.log Log Location : /opt/emc/vmdirect/runtime/logs/recycle/vpod/ 2025-11-18 17:21:42.051+0100 13 INFO ppdm-vmdirect.domain.lan 15457 connectionpool.go(108) main.(*diskconnectionpool).GetConnectionData After open disk ... error is Vddk Open failed: VDDK Error: 1: Unknown error. 2025-11-18 17:21:44.067+0100 14 INFO ppdm-vmdirect.domain.lan 15457 connectionpool.go(108) main.(*diskconnectionpool).GetConnectionData After open disk ... error is Vddk Open failed: VDDK Error: 1: Unknown error. 2025-11-18 17:21:46.101+0100 15 INFO ppdm-vmdirect.domain.lan 15457 connectionpool.go(108) main.(*diskconnectionpool).GetConnectionData After open disk ... error is Vddk Open failed: VDDK Error: 1: Unknown error. Log : vbackupd-vddk.log Log Location : /opt/emc/vproxy/runtime/logs/vbackupd 2025-11-18T16:21:40.854Z NOTICE: VDDK INFO VixDiskLib: VixDiskLib_OpenEx: Open disk '[vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01.vmdk'. 2025-11-18T16:21:40.973Z NOTICE: VDDK INFO VixDiskLib: Error occurred when obtaining NFC ticket for [vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01.vmdk. Error 3014 (Insufficient permissions i n the host operating system) (No permission to perform this action.) at 3510. 2025-11-18T16:21:41.000Z NOTICE: VDDK INFO VixDiskLib: VixDiskLib_OpenEx: Cannot open disk [vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01.vmdk. Error 3014 (Insufficient permissions in the hos t operating system) at 7112. 2025-11-18T16:21:41.000Z NOTICE: VDDK INFO VixDiskLib: VixDiskLib_Open: Cannot open disk [vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01.vmdk. Error 3014 (Insufficient permissions in the host operating system) at 7199. 2025-11-18T16:21:41.374Z NOTICE: VDDK INFO VixDiskLib: VixDiskLib_OpenEx: Open disk '[vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01_1.vmdk'. 2025-11-18T16:21:41.499Z NOTICE: VDDK INFO VixDiskLib: Error occurred when obtaining NFC ticket for [vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01_1.vmdk. Error 3014 (Insufficient permissions in the host operating system) (No permission to perform this action.) at 3510. 2025-11-18T16:21:41.512Z NOTICE: VDDK INFO VixDiskLib: VixDiskLib_OpenEx: Cannot open disk [vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01_1.vmdk. Error 3014 (Insufficient permissions in the h ost operating system) at 7112. 2025-11-18T16:21:41.512Z NOTICE: VDDK INFO VixDiskLib: VixDiskLib_Open: Cannot open disk [vsanDatastore] c753ee68-3e23-1445-7c18-005056015c9f/win-sql01_1.vmdk. Error 3014 (Insufficient permissions in the hos t operating system) at 7199. 2025-11-18T16:21:41.515Z NOTICE: VDDK INFO VixDiskLib: VixDiskLib_Disconnect: Disconnect. 2025-11-18T16:21:41.515Z NOTICE: VDDK INFO VixDiskLib: Backup Failure Function: VixDiskLib_Open 2025-11-18T16:21:41.515Z NOTICE: VDDK INFO VixDiskLib: Backup Failure Error: 3014
The vSphere user account configured in PowerProtect Data Manager does not have the required privilege: vCenter Role Permission: Virtual Machine → Provisioning → Allow virtual machine download PowerCLI equivalent: VirtualMachine.Provisioning.GetVmFiles Refer to the Minimum Required vCenter User Account Privileges section in the PowerProtect Data Manager VMware Virtual Machines User Guide - PowerProtect Data Manager: Info Hub Product Documents and Information
Add Missing Privilege to vSphere Account In vCenter, edit the role assigned to the PowerProtect user. Add: Virtual Machine → Provisioning → Allow virtual machine download Verify Privileges in PowerProtect Data Manager Log in to PowerProtect Data Manager UI . Navigate: Infrastructure → Asset Sources → vCenter → Select vCenter → Edit → Verify User Confirm all required privileges are present. Retry Backup Job After updating permissions, rerun the failed backup. Example if a privilege is missing: Example if all required privileges are found:
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