VSS uses writer components to ensure that the file system is in a stable state when creating your disk image. This may be associated with a 'VolSnap' error in your Windows logs. The result code is an error code from VSS and sometimes just Googling ‘ VSS + Result Code’ will come up with a solution to your VSS problems.īackup aborted! - Unable to open file handle for '\\?\GLOBALROOT\Device\HarddiskVolumeShadowCopyxxx' - The process cannot access the file because it is being used by another process. You will generally see 'Failed to Create Volume Snapshot' followed by a hex result code. Right click the log entry and select 'Send backup logs via email'. The final addition to version 5 is the ability to send these logs via email but only if you are using the Macrium Reflect email component. In version 5 of the software, the VSS error will be shown in the Macrium Reflect log:Īdditionally, in version 5, the main VSS log can be seen as an option under the log view: When VSS fails there will usually be an indication in the image or backup log file. This enables a disk image to represent an exact point in time and not be affected by disk write activity during image creation. The current contents of the disk are written to a shadow copy buffer before the write takes place. VSS is a copy-on-write driver that intercepts disk writes before they actually happen. Please note: VSS requires at least one NTFS volume to be present and online for it to operate (without one you will receive the error: E_PROVIDER_VETO ). Any failure is caused by other software or system configuration problems and will affect every program that uses VSS. Macrium Reflect cannot cause VSS to fail, it simply uses the service. VSS has been included with every version of Windows since Windows XP SP1. Please Note: Microsoft Volume Shadow copy Service is a standard Windows service and not installed by Macrium Reflect. In this tutorial I’ll take you through some troubleshooting steps to locate and fix VSS problems and enable your disk images and file backups to complete successfully. When VSS fails it can sometimes mean that you are unable to create a disk image or backup open files with Macrium Reflect. Macrium Reflect uses a Microsoft service called Volume Shadow copy Service to enable disk images to be created and files to be backed up when in use.
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