Veritas NetBackup™ for VMware Administrator's Guide
- Required tasks: overview
- Notes and prerequisites
- Configure NetBackup communication with VMware
- Adding NetBackup credentials for VMware
- Configure NetBackup policies for VMware
- VMware backup options
- Exclude Disks tab
- Configure a VMware Intelligent Policy
- Reduce the size of backups
- Back up virtual machines
- Use Accelerator to back up virtual machines
- Restore virtual machines
- Restoring the full VMware virtual machine
- Virtual Machine Recovery dialog boxes (restore to original location)
- Virtual Machine Recovery dialogs boxes (restore to alternate location)
- Restoring VMware virtual machine disks by using Backup, Archive, and Restore
- Restoring VMware virtual machine disks by using NetBackup commands
- Restoring individual VMware virtual machine files
- Browse and search virtual machines for restore
- Restore virtual machines with Instant Recovery
- Use NetBackup for vCloud Director
- Virtual machine recovery dialog boxes for vCloud Director
- Best practices and more information
- Appendix A. NetBackup commands to back up and restore virtual machines
- Using NetBackup commands to create a VMware policy
- Appendix B. Configuring services for NFS on Windows
- About configuring services for NFS on Windows 2012 or 2016 (NetBackup for VMware)
- About configuring services for NFS on Windows 2008 and 2008 R2 (NetBackup for VMware)
- Appendix C. The Reuse VM selection query results option
- Appendix D. Backup of VMware raw devices (RDM)
The origin of the snapshot failure: NetBackup or VMware?
When a NetBackup snapshot job fails with status 156, the problem may originate in your VMware environment rather than in NetBackup. You can begin to isolate the problem to one environment or the other by using vSphere Client to take a snapshot of the VM. NetBackup support often uses this approach to investigate a snapshot issue.
To identify the environment in which the snapshot error occurred
- In the vSphere interface, right-click on the VM and click Snapshots > Take Snapshot.
- In the Take VM Snapshot for dialog, click Quiesce guest file system if the NetBackup policy was enabled for virtual machine quiesce (the default).
In the NetBackup policy, the Virtual machine quiesce option is in the VMware - Advanced Attributes dialog.
In the Take VM Snapshot for dialog, make sure the Snapshot the virtual machine's memory option is not selected. NetBackup does not use that option.
- Start the snapshot and check the Recent Tasks pane for snapshot status.
If the snapshot does not complete, the problem with the NetBackup snapshot may be in the VMware environment. Consult your VMware documentation.
If the VMware snapshot is successful, the issue may be with NetBackup.
For relevant error messages, consult the NetBackup bpfis logs.
The following topic summarizes some common causes of 156 errors: