AhsayOBM : 126.96.36.199 or above
When performing a VMware guest VM backup in VDDK mode on VMware vCenter / ESXi version 5.0.x, 5.1.x, or 5.5.x, the following error message is received in the backup report:
Fail to connect VM disk by VDDK library" error: "VDDK Mode Error Virtual Machine = "VM/Hard disk" Reason =
"Fail to connect VM disk by VDDK library". Error=Unknown
This issue occurs because the VMware VDDK 7 API used in AhsayOBM version 188.8.131.52 or above, are not supported by VMware vCenter / ESXi version 5.0.x, v5.1.x, and v5.5.x for backup in VDDK mode.
To workaround this issue, replace the current VDDK 7 API with the VDDK 6 API files, Click Here to download the VDDK v6 API files. Refer to the following steps to replace the files:
VMware vCenter/ESXi, v5.0,v5.1,v5.5 VDDK backup mode, VDDK 7 API, fail to connect, unknown