Veritas NetBackup™ for VMware Administrator's Guide
- Introduction
- 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
- Troubleshooting
- 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)
Existing snapshot handling options (VMware)
This option specifies the action that NetBackup takes when a snapshot is discovered before NetBackup creates a new snapshot for the virtual machine backup. After it creates a snapshot, NetBackup usually deletes the snapshot when the backup completes. If snapshots are not automatically deleted (whether created by NetBackup or not), the performance of the virtual machine may eventually decline.
Undeleted snapshots can cause restore failures due to lack of disk space. If the virtual machine was configured on multiple datastores and a leftover snapshot existed on the virtual machine when it was backed up, note: NetBackup tries to restore all .vmdk files to the snapshot datastore. As a result, the datastore may not have enough space for the .vmdk files, and the restore fails. (For a successful restore, you can restore the virtual machine to an alternate location. Use the Storage Destination dialog in the Virtual Machine Recovery dialogs to select a datastore for the .vmdk files.)
Table: Existing snapshot handling: Options
Option | Description |
---|---|
Continue backup | NetBackup ignores any existing virtual machine snapshots (including snapshots previously created by NetBackup) and proceeds with snapshot creation and the backup. |
Abort if any snapshot(s) exist | If any snapshot exists on the virtual machine, NetBackup aborts the job for that virtual machine only. |
Remove NetBackup snapshot(s) and continue backup | If a virtual machine snapshot exists that a NetBackup backup previously created: NetBackup removes the old snapshot, creates an updated snapshot, and proceeds with the virtual machine backup. |
Abort if NetBackup snapshot(s) exist | If a virtual machine snapshot exists that a NetBackup backup previously created, NetBackup aborts the job for that virtual machine only. (This option is the default.) |
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