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Product Version: 10.2 

Last Modified: 7 October 2020


When backing up a VM with the SAN transport mode enabled, the backup job fails with the following error:

Backup of the "X" VM has failed.
An internal error has occurred while backing up the "X" VM. 


Sometimes after a failed job run, for example, if the Transporter has no access to the iSCSI target, redundant folders or files can appear in the  /bh-vddk folders. These folders/files can cause errors and need to be removed reclusively.


NAKIVO Backup & Replication uses 3 VDDK. In a normal state, the folders should contain only 2 files: 

  • debug.cfg
  • vddk.cfg

Thus the leftover folders must be deleted from 3 VDDK folders, all of which can be found in NAKIVO Backup & Replication installation folder. The following are the example paths to VDDK folders for Linux:




After you’re done, restart the Transporter service.

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