Deploying or recomposing View desktops fails when the parent virtual machine has CBT enabled (2032214)

• In the /var/log/vmware/vpxa.log file on the ESXi host, you see entries similar to:

DISKLIB-CTK : Could not open tracking file. File open returned IO error 4.

DISKLIB-CTK : Could not open change tracking file "/vmfs/volumes/<UUID>/<parent vm name>-ctk.vmdk": Could not open/create change tracking file.

DISKLIB-LIB : Could not open change tracker /vmfs/volumes/<UUID>/<parent vm name>-ctk.vmdk: Could not open/create change tracking file.

DISKLIB-LIB : Failed to open '/vmfs/volumes/<UUID>/<parent vm name>-000002.vmdk' with flags 0x21e Could not open/create change tracking file (2108).

[NFC ERROR] NfcFileDskOpenDisk: Failed to open '/vmfs/volumes/<UUID>/<parent vm name>-000002.vmdk': Could not open/create change tracking file (2108).

[NFC ERROR] NfcFile_Open: Open failed:

[NFC ERROR] NfcFile_Clone: Failed to open source file

[VpxNfcClient] File transfer [ds:///vmfs/volumes/<UUID>/<parent vm name>-000002.vmdk-> ds:///vmfs/volumes/<UUID>/replica-<id>/replica-<id>.vmdk] failed.

[VpxNfcClient] NFC file error for file ds:///vmfs/volumes/<UUID>/<parent vm name>-000002.vmdk

[VpxNfcClient] Closing NFC connection to server

Resolution

To work around this issue, disable CBT on the parent virtual machine. Ensure that there are no snapshots on the parent virtual machine. For more information, see Consolidating snapshots in vSphere 5.x (2003638).

To disable CBT:

1. Power off the virtual machine.
2. Right-click the virtual machine and click Edit Settings.
3. Click the Options tab.
4. Click General under the Advanced section, then click Configuration Parameters. 
5. Set the ctkEnabled parameter to false for the corresponding SCSI disk.

To prevent any third-party applications from enabling Change Tracking on the virtual machine:

1. Open the .vmx file of the virtual machine using a text editor.
2. Add this entry to the file:
   
   ctkDisallowed="true"