Backup method (Hyper-V)

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NetBackup™ for Hyper-V Administrator's Guide

Table: Backup methods for Hyper-V policies

Backup method
Volume Shadow Copy Service (VSS)	Select this method for older Hyper-V hosts that run Windows Server versions earlier than Windows 2016. This method does not support block-level incremental backups or Accelerator.
Windows Management Instrumentation (WMI)	This method is recommended for Hyper-V hosts that run Windows 2016 or later. It enables the faster Hyper-V backup features and is required for block-level incremental backups or Accelerator. The virtual machines must be at a VM configuration version later than 5.

Backup method

Volume Shadow Copy Service (VSS)

Select this method for older Hyper-V hosts that run Windows Server versions earlier than Windows 2016. This method does not support block-level incremental backups or Accelerator.

Windows Management Instrumentation (WMI)

This method is recommended for Hyper-V hosts that run Windows 2016 or later. It enables the faster Hyper-V backup features and is required for block-level incremental backups or Accelerator. The virtual machines must be at a VM configuration version later than 5.

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