Veritas NetBackup™ for Hyper-V Administrator's Guide
- Notes and prerequisites
- Configure NetBackup communication with Hyper-V
- Configure NetBackup policies for Hyper-V
- Backup options on the Hyper-V tab
- Hyper-V - Advanced Attributes
- Browse for Hyper-V virtual machines
- Configure Hyper-V Intelligent Policies
- NetBackup Hyper-V for SCVMM
- Windows Server failover cluster support
- Virtual machine maintenance after a restore
- Back up and restore Hyper-V
- Restoring individual files to a shared location on the virtual machine
- Use Accelerator to back up Hyper-V
- Best practices and more information
- NetBackup logs for Hyper-V and how to create them
- Errors during policy creation
- NetBackup status codes related to Hyper-V
- Appendix A. VSS backup method: Hyper-V online and offline backups
- Appendix B. Hyper-V pass-through disks
- Appendix C. NetBackup commands to back up and restore Hyper-V virtual machines
- Examples of nbrestorevm for restoring VMs to Hyper-V
About Hyper-V online and offline backups for VSS
A Hyper-V virtual machine can be in any of the following states: Running, Saved, Paused, or Off.
In addition, Microsoft provides the following two types of Hyper-V virtual machine backups for the VSS backup method:
Specifies that a virtual machine that is in the Running state is briefly quiesced for the backup. User access during the backup continues without interruption.
Specifies that a virtual machine that is in the Running or Paused state is rendered temporarily inactive. It is returned to its original state before the backup completes. User access during the backup is interrupted.
Type of backup (online or offline) is a Microsoft designation and is not configured in NetBackup.
The following table shows the possible combinations of virtual machine state and the type of backup (online or offline) when you use the VSS backup method.
Table: VSS backup: State of virtual machine before and after restore
State at the time of backup
Type of backup
State after restore
Note: The WMI backup method (for Hyper-V Server 2016 and later) does not employ online vs offline backups.