--use_vss={auto|software_auto|acronis|native|software|hardware|none}
Volume Shadow Copy Service (VSS) notifies VSS-aware applications that the backup is about to start. This ensures the consistent state of all data being used by such applications. Then, VSS tells a snapshot provider to create the snapshot. You can select the snapshot provider that VSS will use for taking snapshots.
Available values of the parameter are as follows:
VSS will use the hardware-based provider that supports the source volume. If none is found, VSS will use the Microsoft Software Shadow Copy provider.
In most cases, VSS will use the Microsoft Software Shadow Copy provider.
VSS will use Acronis VSS Provider for taking snapshots.
VSS will use the system provider (Microsoft Software Shadow Copy provider) for taking snapshots.
VSS will use any available software-based provider that supports the source volume.
VSS will use the hardware-based provider that supports the source volume. If no hardware-based provider is found, snapshots will be created by means of Acronis Backup & Recovery 11.
Choose this value if your database is incompatible with VSS. Snapshots will be created by means of Acronis Backup & Recovery 11. Snapshots are taken faster but data consistency of the applications whose transactions are not completed cannot be guaranteed.