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NetBackup™ for VMware Administrator's Guide

Last Published: 2025-11-24

Product(s): NetBackup (11.1)

Introduction
1. About NetBackup for VMware
2. About the virtual machine backups that include database data
3. About the NetBackup appliance as a VMware backup host
4. NetBackup for VMware components
5. Appliance as backup host: component overview
6. Media servers as backup or discovery hosts
7. Overview of the VMware backup process
8. NetBackup for VMware terminology
Required tasks: overview
1. Overview of VMware tasks
2. Overview of NetBackup tasks
Configuring RBAC roles for VMware administrators
1. RBAC roles for the VMware administrator
2. Assigning permissions at specific VMware object levels
3. Create a custom role for a VMware server or datacenter
4. Create a custom role for an Organization VDC administrator
5. Create a custom role to manage specific VMs
6. Manage permissions for a datacenter
7. Manage permissions for a single VM
8. Apply RBAC role permissions for a VM to other VMs
9. Assign both the Default VMware Administrator and Default AHV Administrator roles to a user
10. Create a custom role for all Nutanix AHV permissions and additional VMware asset permissions
11. Create a custom role for all VMware permissions and additional Nutanix AHV asset permissions
Notes and prerequisites
1. NetBackup for VMware: notes and restrictions
2. Notes on VMware Virtual Volumes (VVols)
3. NetBackup IPv6 parameter required for backups in VMware IPv6 environments
4. NetBackup for VMware: notes on Linux virtual machines
5. Notes on the NetBackup appliance as a VMware backup host
6. NetBackup for VMware support for SAN multi-pathing
7. NetBackup for VMware support for fault tolerant VMs
8. NetBackup character restrictions for the Primary VM identifier
9. In the policy Query builder, display names, resource pool names, and vApp names are case-sensitive
10. Notes on the hotadd transport mode
11. Notes and limitations for tag usage in VMware Intelligent Policy queries
12. Notes and limitations for the backup and restore of VMware tag associations
13. Notes and limitations for the backup and restore of VMware storage policies
14. Support for LVM thin pool based volumes
VMware vSphere privileges
1. About VMware vSphere privileges
2. VMware vSphere privileges for virtual machine backups
3. VMware vSphere privileges for a full VM restore
4. VMware vSphere privileges to create an instant access VM
5. VMware vSphere privileges for NetBackup plug-in operations
6. VMware vSphere privileges for instant rollback
7. VMware vSphere privileges for agentless SFR privileges
8. VMware vSphere privileges for individual vmdk restore privileges
9. VMware vSphere privileges for vApp restore and vApp restore to template
10. Optional permissions for better integration with VMware vSphere
Managing VMware servers
1. About VMware discovery
  1. Change the autodiscovery frequency of VMware assets
  2. Discover VMware server assets manually
2. Add VMware servers
  1. Use the VMware Managed Object Browser to verify the server name
3. Validate and update VMware server credentials
4. Browse VMware servers
5. Remove VMware servers
6. Create an intelligent VM group
7. Remove an intelligent VM group
8. Add a VMware access host
9. Remove a VMware access host
10. Change resource limits for VMware resource types
  1. VMware resource types and limits
11. Setting privileges for posting events to vCenter
12. Authentication token for the NetBackup vSphere plug-ins
13. Validate VMware virtualization server certificates in NetBackup
Configuring backup policies for VMware
1. Configure a VMware policy
2. Limit jobs per policy on the Attributes tab (for VMware)
3. Backup options on the VMware tab
4. Exclude disks tab
5. Browse for VMware virtual machines
6. Limit the VMware servers that NetBackup searches when browsing for virtual machines
7. Virtual machine host names and display names should be unique if VMs are selected manually in the policy
8. Primary VM identifier option and manual selection of virtual machines
9. About incremental backups of virtual machines
10. Configure incremental backups
11. Arctera InfoScale volumes in the virtual machine
Configuring a VMware Intelligent Policy
1. About automatic virtual machine selection
2. Support and use of VMware tag associations
3. The basics of a NetBackup query rule
4. Important notes on automatic virtual machine selection
5. NetBackup requirements for automatic virtual machine selection
6. Automatic virtual machine selection: Task overview
7. Options for selecting VMware virtual machines
8. About the Reuse VM selection query results option
  1. The effect of virtual machine discovery on vCenter
9. Configure automatic virtual machine selection
10. Edit an existing query in Basic mode
11. Use Advanced mode to create a query for virtual machine selection
12. AND vs. OR in queries
13. Examples for the NetBackup Query Builder
14. The IsSet operator in queries
15. About selecting virtual machines by means of multiple policies
16. Order of operations in queries (precedence rules)
17. Parentheses in compound queries
18. Query rules for resource pools
19. Query rules for datacenter folders (host folder)
20. Query rules for duplicate names
21. Query rules for tags
22. Query builder field reference
23. Test query screen for VMware
24. Test Query: Failed virtual machines
25. Effect of Primary VM identifier parameter on Selection column in Test Query results
26. Effect of Primary VM identifier parameter on VM Name column in Test query results
27. Refresh the display of virtual environment changes in the Query Builder
28. Reduce the time required for VM discovery in a large VMware environment
Use Accelerator to back up virtual machines
1. About the NetBackup Accelerator for virtual machines
2. Accelerator: full vs. incremental schedules
3. How the NetBackup Accelerator works with virtual machines
4. Accelerator notes and requirements for virtual machines
5. Accelerator forced rescan for virtual machines (schedule attribute)
6. Accelerator requires the OptimizedImage attribute
7. Accelerator backups and the NetBackup catalog
8. Accelerator messages in the backup job details log
9. About reporting the amount of Accelerator backup data that was transferred over the network
10. Replacing the Accelerator image size with the network-transferred data in NetBackup command output
Configuring protection plans for VMware
1. Subscribe VMs or intelligent VM groups to a protection plan
2. Customize protection settings for a NetBackup for VMware asset
3. Remove protection from VMs or intelligent VM groups
4. View the protection status of VMs or intelligent VM groups
Malware scan
1. Assets by workload type
Instant access
1. Prerequisites of instant access
2. Things to consider before you use the instant access feature
3. Create an instant access VM
4. Restore files and folders from a VM backup image
5. Download files and folders from a VM backup image
6. Instant access Build Your Own (BYO)
7. VM malware scan
Instant rollback
1. Prerequisites of instant rollback
2. Things to consider before you use the instant rollback feature
3. Instant rollback from a VM backup image
Continuous data protection
1. About continuous data protection
2. CDP terminology
3. CDP architecture
4. Prerequisites
5. Capacity-based licensing for CDP
6. Steps to configure CDP
7. Removing VMs from the CDP gateway
8. Defining the CDP gateway
9. Sizing considerations
10. Limiting concurrent CDP backup jobs
11. Controlling full sync
12. Monitoring CDP jobs
13. Using accelerators with CDP
14. Recovering CDP protected VMs
15. Some limitations of CDP
16. Troubleshooting for CDP
Backing up virtual machines
1. Manually back up virtual machines
2. Trial backup for VMware
3. Monitor virtual machine backups
4. Restarting jobs individually in the Activity monitor
5. Viewing NetBackup activity in vSphere Client (HTML5)
VM recovery
1. Restore notes and restrictions
2. Restore notes and restrictions on Linux
3. Recover a full VMware virtual machine
4. Restoring VMware virtual machine disks
5. Cross-Hypervisor restore from VMware to Nutanix
VMware agentless restore
1. About VMware agentless restore
2. Prerequisites and limitations of VMware agentless restores
3. Provide access to a credential for agentless single file recovery to a guest VM
  1. Add a credential for a VMware guest VM
  2. Create a custom role for agentless single file recovery to a guest VM, with a credential
4. Recover files and folders with VMware agentless restore
5. About restricted restore mode
Restoring Individual files and folders from VMware backups
1. About restoring individual VMware files and folders
2. Restore individual files and folders
3. Recovery options for restore of VMware files
4. Setting up NetBackup Client Service for VMware restores to a Windows shared virtual machine drive
Using NetBackup to back up Cloud Director environments
1. About NetBackup for vCloud Director
2. Notes on creating a NetBackup policy for vCloud
3. Notes on restoring virtual machines into vCloud Director
4. Recover VMware Cloud Director virtual machines
5. Restore a vApp template that has multiple virtual machines
6. Reducing the time required for VM discovery in a large vCloud environment
Restore virtual machines with Instant Recovery
1. About Instant Recovery for VMware
2. Task overview for Instant Recovery for VMware
3. Performance recommendations for Instant Recovery for VMware
4. Requirements for Instant Recovery for VMware
5. Notes on Instant Recovery for VMware
6. Restarting the Client for NFS service on a Windows restore host
7. Instant Recovery options on the nbrestorevm command
8. Restoring a virtual machine with Instant Recovery for VMware
9. Restoring a virtual machine to a different location with Instant Recovery for VMware
10. Restoring individual files with Instant Recovery for VMware while the current virtual machine is running
11. Job types for Instant Recovery for VMware
12. Reactivating a restored virtual machine with Instant Recovery for VMware
Protecting VMs using hardware snapshots and replication
1. About virtual machines and hardware snapshots
2. Deployment and architecture
3. Features and applications supported
4. Prerequisites for hardware snapshot and replication
5. Operations supported with hardware snapshot
6. Configuring a VMware policy to use hardware snapshots
7. Configuring a VMware policy to use NetBackup snapshot manager replication
8. Jobs in the Activity Monitor that use hardware snapshot for VMs
9. Notes and limitations
10. Troubleshooting with VMware hardware snapshot and replication operations
Best practices and more information
1. NetBackup for VMware best practices
  1. NetBackup for VMware with deduplication
2. How NetBackup handles VMware tag associations at restore
3. Best practices for VMware tag usage
4. About reducing the size of VMware backups
  1. Block-level backup (BLIB): full vs incremental
  2. Delete a vSphere Client snapshot
5. Further assistance with NetBackup for VMware
Troubleshooting VMware operations
1. NetBackup logging for VMware
  1. NetBackup logs for Accelerator with virtual machines
  2. Configuring VxMS logging
  3. Format of the VxMS core.log and provider.log file names
  4. Configuring the VDDK logging level
2. Troubleshooting VMware backups
3. Troubleshooting the restore of VMware and restores of files
4. Troubleshooting the adding of VMware servers
5. Troubleshooting the browsing of VMware servers
6. Troubleshooting the status for a newly discovered VM
7. Troubleshooting policy configuration
8. Troubleshooting the download of files from an instant access VM
9. Troubleshooting backups and restores of excluded virtual disks
10. How to determine the ESX network that NetBackup used for the backup or restore
11. Preventing browsing delays caused by DNS problems
12. Changing the browsing timeout for virtual machine discovery
13. Changing timeout and logging values for vSphere
14. Credentials for VMware server are not valid
15. Snapshot error encountered (status code 156)
  1. The origin of the snapshot failure: NetBackup or VMware?
16. Conflict between NetBackup and VMware Storage vMotion with vSphere 5.0 or later
17. Backup or restore job hangs
18. VMware SCSI requirements for application quiesce on Windows
19. VMware virtual machine does not restart after restore
20. A restored VM may not start or its file system(s) may not be accessible
21. NetBackup job fails due to update tasks on the VMware server
22. The vSphere interface reports that virtual machine consolidation is needed
23. Linux VMs and persistent device naming
24. For a VMware virtual machine with Windows dynamic disks, a restore from incremental backup fails with a Windows restore host and the hotadd transport mode
25. Simultaneous hotadd backups (from the same VMware backup host) fail with status 13
26. Troubleshooting VMware tag usage
27. Ensuring that guest customizations can be restored in vCloud Director
28. Troubleshooting vmdk restore to existing VM
29. Troubleshooting backups of virtual machines on Virtual Volumes (VVols)
30. Issues with the CA certificate during installation of the NetBackup client on VMware Cloud (VMC)
31. Windows VM Restore doesn't detect the data disks
32. Boot Disk Identification Failure and Restore Behavior
Appendix A. Configuring services for NFS on Windows
1. About installing and configuring Network File System (NFS) for Granular Recovery Technology (GRT)
2. About configuring services for NFS on Windows 2012 or 2016 (NetBackup for VMware)
  1. Enabling Services for Network File System (NFS) on a Windows 2012 or 2016 media server (NetBackup for VMware)
  2. Enabling Services for Network File System (NFS) on a Windows 2012 or 2016 restore host (NetBackup for VMware)
3. Disabling the Server for NFS (NetBackup for VMware)
4. Disabling the Client for NFS on the media server (NetBackup for VMware)
5. Configuring a UNIX media server and Windows backup or restore host for Granular Recovery Technology (NetBackup for VMware)
6. Configuring a different network port for NBFSD (NetBackup for VMware)
Appendix B. Backups of VMware raw devices (RDM)
1. About VMware raw device mapping (RDM)
2. Configurations for backing up RDMs
3. About alternate client backup of RDMs
4. Requirements for alternate client backup of RDMs
5. Configure an alternate client backup of RDMs

Sizing considerations

This section describes the CDP gateway's sizing requirements, based on your environment's workload.

Note:

Special configuration is needed if you plan to support a large number of VMs using the CDP gateway. Deploy the CDP gateway and the MSDP or media server hosting the storage unit, on different hosts.

Note:

If the CDP gateway and MSDP are co-located on the same media server, then the CDP service consumes 20% of available memory (RAM) for its internal use. If the CDP gateway is standalone on the media server, it consumes 50% of the available memory for the same. From

Gateway sizing

You need to size the CDP based on the number of VMs that you want to protect. Consider the requirements that are described in this section while calculating the requirements for the gateway.

CDP enables you to continuously tap the I/Os done by the VMs. By default NetBackup uses 10-GB storage space on the staging area per VM. When IO tapping starts, the CDP service starts writing the data into this 10-GB storage. Once this storage limit is reached, the CDP service (nbcctd) initiates a backup job to move this data from the gateway to the backup storage.

Out of the total available space on the CDP staging path, by default NetBackup reserves 25% for usage beyond the allocated storage per VM. This storage is common for the subscribed VMs to the gateway. See the following topic for more information.

See Defining the CDP gateway .

Storage requirement for the gateway

When NetBackup receives the data from the ESXi I/O daemon, it stores the data in the in-memory cache. The recommended value is a minimum of 160 MB of data for each VM.

For example, you can protect 40 VMs in a gateway. So, you need 40*160 MB = 6400-MB RAM. Allocating more RAM increases the in-memory cache size when the CDP service starts, ultimately increasing the I/O performance of the service.

Similarly, to stage 40 * 10-GB = 400-GB (75%) + 134GB (25%) reserved, that is approximately 540-GB space you need to have in the staging area.

Increasing the storage for each VM allows to NetBackup to back up more data per backup job. Increasing the reserved storage for the CDP gateway lets you receive more data without any interruption to the protection. Note that even when the staging path is fully occupied, it does not affect the applications inside the VM. NetBackup catches up the data that the applications produce during that time, and moves it to the backup storage in the subsequent backup jobs.

Note:

If NFS is used for the staging area, the minimum required throughput is 100 MB/sec.

First 24-hours experience

When you start using the CDP feature, it is important to observe the system and tune it according to your business demands. Add any required hardware configurations to maximize protection and performance. First, you can use default values and start subscribing the VMs according to the requirements in this section. You should review the following:

The number of immediate backup jobs that the CDP service initiates due to the staging storage in full condition.
CDP backup engine notifications in the NetBackup web UI.
The performance of the underlying provisioned storage. For example, the NetBackup installation disk, CDP staging area, and MSDP storage disks.
Network utilization and available bandwidth.
CPU and memory consumption when data is received from the ESXi, and when the backup jobs are running.

Note:

If you observe slow I/Os from the I/O daemon, review the network bandwidth and system RAM. See the following topic for how to increase the in-memory cache size.

See Defining the CDP gateway .