Backup Accelerator for faster backups in Backup Manager

The Backup Accelerator is a feature in the Backup Manager that speeds up backups and increases RPO.

The current instruction is for the new edition of the Backup Accelerator (available starting from version 18.4). If you are using an older version of the Backup Manager, click here.

Enabling the Backup Accelerator

You can enable and disable the feature on devices through product settings. It is enabled by default in the "All-In" product.

Supported data sources

The Backup Accelerator works for files of all types and sizes belonging to the following data sources:

  • Files and Folders
  • System State
  • Hyper-V
  • Microsoft Exchange
  • Microsoft SQL
  • Microsoft SharePoint

The remaining data sources (VMware, Network Shares, Oracle and MySQL) are backed up without the involvement of the Backup Accelerator.


Supported operating systems

The Backup Accelerator is a Windows-only feature. We support the following Windows versions:

  • Windows 7 (Windows Update 3033929 is required)*
  • Windows 8 / 8.1
  • Windows 10
  • Windows Server 2008 R2 (Windows Update 3033929 is required)*
  • Windows Server 2012 / 2012 R2
  • Windows Server 2016
  • Windows Server 2019

*On Windows 7 and Windows Server 2008 R2, update 3033929 that supports SHA-2 is required.

Hardware requirements

  • The Backup Accelerator processes all local volumes (both basic and dynamic) that have backup selections. Network volumes (including Cluster Shared Volumes) are not supported.
  • Supported file systems: NTFS, ReFS and FAT32.

Limitations / Known issues

The Backup Accelerator does not track the following:

  • Disk formatting
  • VSS snapshot reverts
  • Rolled back NTFS transactions
  • Some memory-mapped files (delayed change detection may occur)

Also when a session is powered by the Backup Accelerator, existing backup quotas may be occasionally exceeded.