Acronis Backup Advanced 11.7: Backup of Hyper-V VM Located on SMB3.0 Share Fails with "The given shadow copy provider does not support shadow copying the specified volume."

The “File Server VSS Agent Service” role service must be enabled on the file server hosting SMB3.0 share.

This article applies to:

• Acronis Backup Advanced 11.7 (Acronis Backup & Recovery 11.7 Advanced Update 6)

Symptoms

1. You create a backup of multiple virtual machines running on Hyper-V host under Windows 2012 R2.
2. Some (may be none) machines are successfully backed up until backup of one fails with: 
   The given shadow copy provider does not support shadow copying the specified volume. 
   
   See the full error message:

   
   

   Error Details:

   Code: 21,692,431(0x014B000F)

   LineInfo: 0x92B7C14BE2B74795;

   Module: virt_gtob_addon_vs_44397

   Message: Error occurred while resolving GXT Item.

   --------------------

   Code: 21,692,431(0x014B000F)

   LineInfo: 0x494069D8C09A9858;

   Module: virt_gtob_addon_vs_44397

   Message: Error occurred while resolving GXT Item.

   --------------------

   Code: 9,764,912(0x00950030)

   LineInfo: 0xE64F8AC0F3F921CB;

   Module: disk_bundle_vs_44397

   Message: Cannot open emulated machine.

   --------------------

   Code: 9,764,877(0x0095000D)

   LineInfo: 0xD1AB7FA1E56EC83E;

   Module: disk_bundle_vs_44397

   Message: Failed to perform the requested operation.

   --------------------

   Code: 1,048,812(0x001000EC)

   LineInfo: 0x7BB42EFE3C733241;

   Module: disk_bundle_vs_44397

   Message: Internal error: Attempt to access emulated disk for non-initialized object.

   --------------------

   Code: 5,439,582(0x0053005E)

   LineInfo: 0x383FFDB092990E23;

   Module: hv_srv_vs_44397

   Message: Failed to open virtual disk file '\\192.168.10.101\hyper-vrs\MDMN3\Virtual Hard Disks\MDMN3-DATA.vhdx'.

   --------------------

   Code: 5,439,700(0x005300D4)

   LineInfo: 0x383FFDB092990DDA;

   Module: hv_srv_vs_44397

   Message: Failed to create a multi-volume snapshot where files are located:

    \\192.168.0.1\hyper-vrs\MN3 (virtual machine file location),

    \\192.168.0.1\hyper-vrs\MN3 (virtual machine snapshot file location),

    \\192.168.0.1\hyper-vrs\MN3\Virtual Hard Disks\MN3-OS.vhdx (virtual disk file location),

    \\192.168.0.1\hyper-vrs\MN3\Virtual Hard Disks\MN3-DATA.vhdx (virtual disk file location).

   --------------------

   Code: 5,439,695(0x005300CF)

   LineInfo: 0x383FFDB092990DCB;

   Module: hv_srv_vs_44397

   Message: Failed to mount the volume snapshot.

   --------------------

   Code: 458,785(0x00070021)

   LineInfo: 0xE24F93D0B8D8C99E;

   Module: hv_srv_vs_44397

   Message: Failed to create volume snapshot.

   --------------------

   Code: 1,098,818(0x0010C442)

   LineInfo: 0x3FEC04E376B8A1AF;

   Module: hv_srv_vs_44397

   Message: Failed to start creating the volume snapshot.

   --------------------

   Code: 9(0x00000009)

   LineInfo: 0x2AACB7B2AB852AC;

   Module: hv_srv_vs_44397

   Message: The given shadow copy provider does not support shadow copying the specified volume.

   --------------------

Backup of the remaining machines fails as well.

Cause

The “File Server VSS Agent Service” role service is not enabled on the file server where SMB3.0 share hosting VM disks is located.

Solution

Add the “File Server VSS Agent Service” role service to the file server. Also note the following general prerequisites:

• Application server and file server must be running Windows Server 2012
• Application server and file server must be domain joined to the same Active Directory domain
• The backup agent must run in a security context that has backup operators or administrators privileges on both application server and file server
• The backup agent/application must run in a security context that has at least READ permission on file share data that is being backed up.

More information

The full list of the VSS handling specifics for SMB3.0 shares can be seen here.

Please contact Acronis Customer Central if you need assistance.

See also:

• Acronis Backup Advanced 11.5 for Hyper-V: Agentless Backup of VMs on SMB 3.0 Shares Is Not Supported