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Backup Failing - Unable to access hard disk.

Thread needs solution
Beginner
Posts: 1
Comments: 0

Hey there, the Acronis application that we have keeps failing to backup. I have it backing up to a known working backup drive but for some reason it keeps stating that it can't open the vmdk file.

VMware_VDDK: VixDiskLibVim: TicketLoadSnapshotCb failure - VixError = 1.

Repeat failed IO operation 'Open'.
Additional info:
--------------------
Error code: 245
Module: 83
LineInfo: c61573f663f5d83e
Fields:
Message: Repeat failed IO operation 'Open'.
--------------------
Error code: 208
Module: 83
LineInfo: c61573f663f5d785
Fields: code : 1
Message: VMware_VDDK: Unknown error
--------------------

Failed to execute IO operation 'Open'.
Additional info:
--------------------
Error code: 246
Module: 83
LineInfo: c61573f663f5d842
Fields:
Message: Failed to execute IO operation 'Open'.
--------------------
Error code: 208
Module: 83
LineInfo: c61573f663f5d785
Fields: code : 1
Message: VMware_VDDK: Unknown error
--------------------

Failed to get access to hard disk '[datastore]****.vmdk'.
Additional info:
--------------------
Error code: 23
Module: 83
LineInfo: c61573f663f5da1f
Fields:
Message: Failed to get access to hard disk '[datastore]****.vmdk'.
--------------------
Error code: 94
Module: 83
LineInfo: c61573f663f5d931
Fields:
Message: Failed to open raw hard disk data file '[datastore]****.vmdk'.
--------------------
Error code: 208
Module: 83
LineInfo: c61573f663f5d785
Fields: code : 1
Message: VMware_VDDK: Unknown error
--------------------

0 Users found this helpful
Acronis Program Manager
Posts: 22
Comments: 3744

Hi Kyle,

It would be better to contact our support team for assistance as the problem is likely related to particular setup and should be investigated separately. Please collect the following information before the contact:

1) Debug logs collected after reproducing the issue: https://kb.acronis.com/content/30926
2) Clarify whether the problem is reproduced when backing up any VM or only some specific one.
3) How is Acronis Backup for VMware set up, i.e. whether it is installed as Virtual Appliance or Windows Agent and whether there are any specifics of the installation (some dedicated datastore, connection to vCenter/ESXi host has some specifics, etc.).

Thank you.
--
Best regards,
Vasily
Acronis Virtualization Program Manager