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public:8082_issue:fail_to_connect_vm_disk_by_vddk_library_error_unknown

ISSUE: Fail to connect VM disk by VDDK library. Error=Unknown (VMware VDDK backup)

Article ID: 8082
Reviewed: 28/08/2020

Product Version:
AhsayOBM : 8.3.4.0 or above
OS: Windows

Problem Description

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:

No. Type Timestamp Log
* info ... ...
* erro YYYY/MM/DD hh:mm:ss 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
* ... ... ...

Cause

This issue occurs because the VMware VDDK 7 API used in AhsayOBM version 8.3.4.0 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.

Resolution

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:

  1. Stop the AhsayOBM service.

  2. Stop the AhsayOBM NFS service.

  3. In Windows Explorer, make a copy of the current folder %OBM_Install_home%\bin\x64.

  4. Open the folder %OBM_Install_home\bin\x64.

  5. Delete the following .dll files (13 files in total):

    • diskLibPlugin.dll
    • libexpat.dll
    • lookup-types.dll
    • msvcp120.dll
    • msvcr120.dll
    • pcre.dll
    • sqlite3.dll
    • ssoclient.dll
    • vddkVimAccess.dll
    • vim-types.dll
    • vmacore.dll
    • vmomi.dll
    • zlib1.dll

  6. Unzip the downloaded vddk.zip file and copy its contents to the %OBM_Install_home%\bin\x64 folder.

  7. Restart the AhsayOBM service.

  8. Restart the AhsayOBM NFS service.

Important:
After replacing the VDDK 7 API files with the VDDK 6 API files, AhsayOBM version 8.3.4.0 or above can no longer support backup of VMware vCenter / ESXi v7 backup sets.  Please replace the files at your own discretion.


Here is the list of VDDK 6 API files (17 files in total):

glib-2.0.dll
gobject-2.0.dll
gthread-2.0.dll
gvmomi.dll
iconv.dll
intl.dll
libcurl.dll
libeay32.dll
liblber.dll
libldap.dll
libldap_r.dll
libxml2.dll
ssleay32.dll
VddkJNI.dll
vixDiskLib.dll
vixDiskLibVim.dll
vixMntapi.dll

Keywords

VMware vCenter/ESXi, v5.0,v5.1,v5.5 VDDK backup mode, VDDK 7 API, fail to connect, unknown

public/8082_issue/fail_to_connect_vm_disk_by_vddk_library_error_unknown.txt · Last modified: 2020/11/18 14:40 by edward.chan