How to troubleshoot Microsoft Volume Shadow copy Service errors Tweet 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. 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 cannot cause VSS to fail, it simply uses the service. Any failure is caused by other software or system configuration problems and will affect every program that uses VSS.
VSS allows backups to be taken of in-use, locked, or inaccessible files without interrupting whatever process or user is currently accessing those files. This is especially useful for databases, as it means backups can be taken while the database is active, without requiring downtime.
Each writer is controlled by a Windows Service. A list of currently available writers can be seen via the command line on any Windows machine. Open a command prompt as an Administrator and run the command: A writer in the Stable state is ready and waiting to take a backup.
Writers in the Failed or Unstable states have encountered a problem, and may need to be reset. Writers that are currently In-Progress are being used for a backup. If no backups are running, the writer may be stuck, and can be reset like Failed or Unstable writers. Restarting the service that controls the writer will reset the writer and, in most cases, bring it back to a stable state.
It is important to note that not all controlling services can be restarted. If a service cannot be restarted, a reboot of the machine is required.urbanagricultureinitiative.com_db_wait_stats (Azure SQL Database) 03/14/; 36 minutes to read Contributors.
In this article APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse Returns information about all the waits encountered by .
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Most backup solutions for Windows use Volume Shadow Copy Service (VSS) to create backup copies of the application or service data. In some cases, the VSS service or one of its writers start to work incorrectly which results in failures during the backup.
Step 3: Find the VSS writer's associated Service Display Name in the table below and restart the service.