Sometimes you had to completely stop the SQL Server services to get full backups. It could be difficult to backup everything without a pre-backup script to stop required services and post-backup scripts to get everything running again.
I can walk you through this process! Yes please, show me how! VSS allows backups of in-use, locked, or open files without interrupting whatever process or user is currently accessing those files. This is especially useful for databases, as it allows backups to be performed while the database is active without requiring downtime.
Each backup type will have its own set of Writers, and each Writer is controlled by a Windows Service. A list of currently-available Writers can be accessed via the command prompt on any Windows computer.
Run command prompt as an Administrator and run the command: This command will list all of the Writers currently available on the machine and display the state of each. The sections below are collapsed.
Ideally, all Writers should be Stable when no backups are in progress. Writers in the Failed or Unstable states have encountered a problem, and must be reset to bring the Writer back to a Stable state.
Writers that display as In-Progress or Waiting for Completion are currently in use by some backup process. When the backup is finished, the Writer will revert to the Stable state. If a Writer is listed as In-Progress or Waiting for Completion when no backups are running, the Writer may be "stuck".
Stuck Writers must be reset like a Failed or Unstable Writer. This usually brings the Writer back to a stable state. It is important to note that not all services that control VSS Writers can be restarted.
If a service cannot be restarted, a reboot of the machine is required. It is also important to note that restarting some services can cause downtime for the application that is related to the service.
A reference list of VSS Writers and their controlling services can be found below. This list is for reference use only.
It is not comprehensive. A system may have active Writers that are not in this list. For System State, some Writers that do appear in the list may not be required for the backup to complete. A system will only have Writers that correspond to Windows components that are installed on the system.The Microsoft Exchange Replication Service VSS writer (instance %1) has successfully completed the backup of storage group ‘%2’, but it was unable to match the name of this storage group with the name of any existing storage groups.
Validate the proper operation of Exchange // VSS-based backups. - Microsoft/VSSTESTER. Exchange Writers share the same Writer Name “Microsoft Exchange Writer” and Writer ID “76fe1acfbcde-8e1acbfb7” and can be distinguished by a new parameter that is introduced to VSS framework in Windows SP1, the Writer Instance Name.
May 01, · VSS writer and backup issues. by Service Name Service Display Name ASR Writer VSS Volume Shadow Copy BITS Writer BITS Background Intelligent Transfer Service If we add SQL to the server, then a database for SQL is created. If we further add Exchange, database for Exchange is created.
VSS Writers are the ones . Agent is installed on my vmware exchange server and im running exchange CU Here is the output C:\Windows\system32>vssadmin list writers | more. Exchange Writers share the same Writer Name “Microsoft Exchange Writer” and Writer ID “76fe1acfbcde-8e1acbfb7” and can be distinguished by a new parameter that is introduced to VSS framework in Windows SP1, the Writer Instance Name.