The operation has been disabled by the guest operating system
Hello,
on every backup we have a warning for one specific VM (2008 R2 Domain Controller):
E00004E25: Fehler 0x4e25: The operation has been disabled by the guest operating system
| Ablaufverfolgungsebene: Fehler
| Channel: tol-activity#B42F2C9F-FE32-4125-95D2-81A7C55365F5
| Zeile: 0xc61573f663f5d7a4
| Datei: k:\13\enterprise\virtualware\raw\vmware\vixdisklib\vixdisklib.cpp:395
| Funktion: `anonymous-namespace'::LibHolder::PrepareForAccess
| $module: esx_srv_vsa64_7970
What does this message mean?
Which operation is disabled?
Regards
Dennis

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Since two weeks I have the same Problem with Acronis Backup 12.5.
Only one VM, always the same VM. I even cloned the VM to a new one, and resetted CBT Information.
When I start a Full Backup, it starts normal. During the first minutes, the error appears but Backup runs through, apparently normal. All data (several GB seem to be transferred). But the error is still displayed.
So the overall status of the job is failed too.
Is there a fix?
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Hi,
The issue is related to particular environment and specifics of VMware VDDK libraries used. The VixDiskLib_PrepareForAccess method disables Storage vMotion operation for VM before backup and if it fails (like in your case), it usually means that the operation is already disabled on VMware vCenter level and cannot be changed - hence the warning. The clear up the warning, there must be changes made to VMware vCenter database (to clean up the flag) or the VM should be re-added to vCenter inventory - see possible solutions in https://kb.vmware.com/s/article/2008957#Manually%20remove%20entries%20from%20the%20vCenter%20Server%20SQL%20database . To properly apply the solutions it makes sense to contact our support team for further assistance with the issue.
Thank you.
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