Specifications

1.
2.
3.
a.
b.
4.
5.
6.
Last error: No error
Writer name: 'MSDEWriter'
Writer Id: {f8544ac1-0611-4fa5-b04b-f7ee00b03277}
Writer Instance Id: {9036fdfa-05ef-4f7d-9c2f-84fa2f06560a}
State: [1] Stable
Last error: No error
Writer name: 'WMI Writer'
Writer Id: {a6ad56c2-b509-4e6c-bb19-49d8f43532f0}
Writer Instance Id: {f9f92826-a3d4-486c-ade3-a4201deb8ad2}
State: [7] Failed
Last error: No error
If the output of this command contains writers with a state that is not , you must restart the VSS service Volume Shadow Copy Services. If'Stable'
you continue to see this error in reports and agent logs even after restarting the services, register your VSS drivers use the following instructions:
Windows Server 2003 and Windows Server 2003 R2 - Refer to the Microsoft Knowledgebase solution Error message
when you run the "vssadmin list writers" command on a Windows Server 2003-based computer: "Error:
0x8000FFFF" for details.
Windows Server 2008 and Windows Server 2008 R2 - VSS drivers on Windows Server 2008 and 2008 R2 can normally
be reset by restarting the Services from the Management Console based on the Microsoft Knowledgebase
solution No VSS writers are listed when you run vssadmin list writers on Windows Server 2008 .
If you determine that restarting Services is appropriate for your environment, complete the following steps:
Log in to the system, and click .Start
Enter in the Start Search box, and press .services.msc Enter
In the Services window, right-click each of the following services individually, and then click Restart :
COM+ Event System
Volume Shadow Copy
Close the Services window.
Open an elevated command prompt, enter vssadmin list writers , and then click Enter .
Verify that the VSS writers are listed.
Important
Restarting VSS on Windows 2008 can cause unexpected behavior. Verify that necessary writers (e.g., Hyper-V orall
Exchange) have restarted or data objects may not be detected or backed up. It is recommended that you reboot the Server in
lieu of restarting the VSS writer components listed below, and verify that all appropriate Microsoft updates are installed.
Barracuda Networks Technical Support
If you continue to experience problems with your VSS drivers in relation to your Barracuda Backup Server, contact Barracuda Networks
.Technical Support