use_vss

--use_vss={none|auto|software_auto|software|hardware|acronis|native}

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:

• none

  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.

• auto (by default)

  VSS will use the hardware-based provider that supports the source volume. If none is found, VSS will use a software-based provider. If Active Directory is detected on the volume whose snapshot is about to be taken, the system provider (Microsoft Software Shadow Copy provider) will be used.

• software_auto

  VSS will use the software-based provider that supports the source volume. If Active Directory is detected on the volume whose snapshot is about to be taken, the system provider (Microsoft Software Shadow Copy provider) will be used.

• software

  VSS will use any software-based provider that supports the source volume.

• hardware

  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.

• acronis

  VSS will use the Acronis VSS Provider for taking snapshots.

• native

  VSS will use the system provider (Microsoft Software Shadow Copy Provider) for taking snapshots.