![]() This issue has been fixed in Acronis Backup for VMware 9 (Acronis vmProtect 9). The solution section below describes the troubleshooting steps as well as clean-up steps required to revert from this situation back to normal workflow. The main cause of this behavior is that Acronis Virtual Appliance backup engine has crashed or the Virtual Appliance had been hardly reset (also could be caused by crash). Message: Failed to execute the operation. Message: The operation 'Backing up' has failed. Reason: .ġ4 Information 6/8/12 6:20:49 AM Remove snapshot (snapshot-3927).ġ5 Warning 6/8/12 6:20:49 AM The operation 'Backing up' has failed. Message: Awaiting task 'AttachScsiHardDisk' has failed. Message: VMware error: 'An internal error.'. Message: Failed to open raw hard disk data file ' SERVER/SERVER.vmdk'. This happens as a result of a previous failure since while the disks are already attached to the VA, the new backup attempt fails to attach them twice:ġ2 Information 6/8/12 6:20:41 AM Adding virtual hard disk ' SERVER/SERVER.vmdk' to '0:1'.ġ3 Error 6/8/12 6:20:48 AM Failed to open raw hard disk data file ' SERVER/SERVER.vmdk'. The future backups of this VMs start to fail with error similar to below one (note the bold line).Removing this snapshot will not delete the disks deltas from the datastore (thus causing impact on VM performance):.After the backup there is a snapshot left in the VM snapshot manager:. ![]() The disks are normally deleted from Acronis Virtual Appliance (VA) configuration after the backup finishes. ![]() (!) It is normal to see this picture while the backup is running. See the below example screenshot (the backed up VM is w2k_Lenok): You notice that Acronis Virtual Appliance (VA) contains additional virtual disks in configuration even if there is no backup active at this time.(!) Most of the steps outlined in the article require a vSphere client connected to vCenter/ESX(i) host where Acronis Virtual Appliance is deployed. See also Acronis vmProtect: Supported Environments. attaching disks to Acronis Virtual Appliance for LAN-free backup. (!) This article applies to cases when the backup is performed using the Hot-add method, i.e. This article describes what to do if after a backup failure the backed up virtual disks are left attached to Acronis Virtual Appliance
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