V-79-57344-38277 - Unable to open a disk of the virtual machine.

[shiva2]

VM Backup is getting faied with the error Unable to open a disk of a virtual machine.

Job Log: BEX_HOSRVJUBLBCKP01_45589.xml

V-79-57344-38264 - Unable to copy the virtual machine disk using the VMware VixDiskLib.
VixDiskLib_Read() reported the error: NBD_ERR_DISKLIB
V-79-57344-38366 - 
V-79-57344-38366 - 

[Colin_Weaver]

What version of Backup Exec?

What version of ESXi?

has this backup ever worked?