Reboot the machine and repair the installation
VSS
This has been fixed
Download and run the script on the host machine to fix the issue
Instructions on how to enable Microsoft native VSS instead of the default Acronis VSS in Acronis Backup & Recovery 10
Make sure the backup is run under administrator or that you back up without using VSS
Installation of Acronis Product fails with SnapVssProvider Error in MSI log. This article provides information on how to find, identify and resolve typical errors in MSI logs of Acronis software.
Compatibility issue of Acronis True Image with NTBackup
How to create backup with these applications
Change the databases to Simple Recovery Mode
You either have 1) Windows Server 2008 R2, or 2) Windows Small Business Server 2011, or 3) EFI system partition, or 4) EISA service partition
Activate Acronis VSS provider or turn off VSS entirely
Instructions on how to enable Microsoft native VSS instead of the default Acronis VSS in Acronis Backup
You are running a single-pass backup of SQL instances that fails with the error. To fix this issue, re-register the VSS service
Acronis Backup Advanced 11.5 for Hyper-V: Agentless Backup of VMs on SMB 3.0 Shares Is Not Supported
Hyper-V VMs on SMB3.0 shares backup is not supported
All conditions must be true:
- Act! software and Microsoft SQL Server are installed
- Acronis True Image does not create a backup. If you click the red exclamation mark at the center of the backup screen, the following error message is displayed:
- Entire PC and disk/partition backups: Unable to create volume snapshot
- File and folder backup: Failed to backup file or folder
- The last modified log file at C:\ProgramData\Acronis\TrueImageHome\Logs\ti_demon contains the following text: VSS writer 'SqlServerWriter' with class ID 'A65FAA63-5EA8-4EBC-9DBD-A0C4DB26912A' has failed to process the snapshot
Backup on Windows XP fails with error "Failed to create volume snapshot" if MS SQL Server is installed.
The “File Server VSS Agent Service” role service must be enabled on the file server hosting SMB3.0 share.
This article applies to:
Recovery of MS Exchange database/storage group fails if committed transaction log is missing in the backup
Turn on the MS Exchange VSS Writer to fix the issue
Acronis VSS provider is used to initiate creation of VSS snapshot, but MS VSS service is actually used
The reason is that the backup was created with disabled VSS support
Backup task hangs at "Calculating time remaining..."
Unlock the partition using diskpart
As a workaround, use Microsoft VSS instead of Acronis VSS
Symptoms
Backup with activated Volume Shadow Copy fails with the following error similar:
The backup has failed because 'VSS Writer' has failed during snapshot creation.
This error can be produced by different VSS writers, see some examples below:
You are protecting Windows Server 2008 R2 with Acronis software.
Backup fails with the following error messages:
Error code: 1098825
Fields: {"$ module": "disk_bundle_vsa64_xxxxx"}
Message: Locking of volume snapshot failed.
------------------------
Error code: 9
Fields: {"$ module": "disk_bundle_vsa64_xxxxx", "code": 3758096391}
Message: Already blocked.
While checking VSS doctor report or Windows Application Event log you find the following (or quite similar):
Volume Shadow Copy Service error: Unexpected error calling routine RegOpenKeyExW (-2147483646, SYSTEM \ CurrentControlSet \ Services \ VSS \ Diag, ...). hr = 0x80070005, access denied.
You are protecting Windows Small Business Server 2011 Standard.
When checking VSS doctor report or Windows Application Event log you found the following (or similar) warning for "spsearch account" and 1376 status code:
Type: Warning
Source: VSS
Message: Volume Shadow Copy Service error: Unable to resolve spsearch account with status 1376. Check connection to domain controller and VssAccessControl registry key. Operation: Collecting Write Process Data Asynchronous Operation Execution Context: Execution Context: Requestor Current Status: GatherWriterMetadata Error Details: Error: NetLocalGroupGetMemebers (spsearch), 0x80070560, The specified local group does not exist.
InstanceId: 8230
SearchLink: https://www.google.com/#newwindow=1&q=VSS+event+id+8230
Description
Acronis True Image supports VSS-aware databases for both disk-level and file-level backup.
VSS-Backup fails with "The shadow copy provider had an unexpected error while trying to process the specified operation". To solve this issue, troubleshoot the VSS provider mentioned in the message.
Introduction
Acronis software may give errors, freeze or produce other undesired effects when there are issues with parts of the computer environment it operates in:
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Hardware/Firmware |
Disk partitions, file systems |