Veritas NetBackup™ 8.0 for Hyper-V Administrator's Guide

Last Published:
Product(s): NetBackup & Alta Data Protection (8.0)
  1. Introduction
    1.  
      About Hyper-V
    2.  
      Updates to this guide for NetBackup 8.0
    3.  
      NetBackup for Hyper-V environment
    4.  
      Hyper-V terminology related to backup
    5.  
      Basic phases in a NetBackup backup of a Hyper-V virtual machine
    6.  
      NetBackup administrator tasks for Hyper-V
    7.  
      Quick reference for troubleshooting
  2. Notes and prerequisites
    1.  
      NetBackup for Hyper-V prerequisites
    2.  
      NetBackup for Hyper-V notes and restrictions
    3.  
      NetBackup character restrictions for virtual machine display names
    4.  
      NetBackup character restrictions for vhd or vhdx names and the VM path when the Enable file recovery from VM backup option is used
    5.  
      Notes on Linux virtual machines
  3. Configure NetBackup communication with Hyper-V
    1.  
      Changing the NetBackup Legacy Network Service logon (vnetd.exe) to the domain user account
    2.  
      Setting global limits on the use of Hyper-V resources
  4. Configure NetBackup policies for Hyper-V
    1.  
      Creating a Hyper-V policy from the Policy Configuration Wizard
    2.  
      Creating a Hyper-V policy from the NetBackup Policies utility
    3.  
      Limit jobs per policy on the Attributes tab (for Hyper-V)
    4.  
      Virtual machine host names and display names should be unique if VMs are selected manually in the policy
    5. Hyper-V backup options
      1.  
        Optimization options (Hyper-V)
      2.  
        Primary VM identifier option (Hyper-V)
      3.  
        Enable offline backup of non-VSS VMs (Hyper-V with VSS)
      4.  
        Cluster shared volumes timeout (Hyper-V with VSS)
    6. Hyper-V - Advanced Attributes
      1.  
        Provider Type configuration parameter (VSS)
      2.  
        Snapshot Attribute configuration parameter (VSS)
      3.  
        Virtual disk selection parameter (WMI)
      4.  
        Existing snapshot handling parameter (WMI)
      5.  
        Consistency level parameter (WMI)
      6.  
        About the Exclude disk options for Virtual disk selection
      7.  
        Virtual disk selection options: an example to avoid
      8.  
        Restoring data from the backups that excluded the boot disk or data disks
    7. Configuration parameters for Hyper-V
      1.  
        Client Name Selection configuration parameter
      2.  
        Virtual Machine Backup configuration parameter
      3.  
        Provider Type configuration parameter (VSS)
      4.  
        Snapshot Attribute configuration parameter (VSS)
      5.  
        Allow Offline Backup of VM configuration parameter
      6.  
        CSV Timeout in Minutes configuration parameter
    8. Browse for Hyper-V virtual machines
      1.  
        About cached names for virtual machine backup
    9.  
      Prerequisites for alternate client backup of a virtual machine (VSS)
    10.  
      Configuring alternate client backup of virtual machines
    11.  
      Requirements for a NetBackup client inside the virtual machine
  5. Configure Hyper-V Intelligent Policies
    1.  
      About Hyper-V Intelligent Policy (automatic selection of virtual machines for backup)
    2.  
      The basics of a NetBackup query rule
    3.  
      Important notes on Hyper-V Intelligent Policy
    4.  
      NetBackup requirements for Hyper-V Intelligent Policy
    5.  
      Setting up Hyper-V Intelligent Policy: Task overview
    6.  
      Options for selecting Hyper-V virtual machines
    7.  
      Creating a Hyper-V policy for automatic virtual machine selection
    8.  
      Editing a query in Basic Mode
    9.  
      Using the Query Builder in Advanced Mode
    10.  
      AND vs. OR in queries
    11.  
      Examples for the NetBackup Query Builder
    12.  
      The IsSet operator in queries
    13.  
      About selecting virtual machines by means of multiple policies
    14.  
      Order of operations in queries (precedence rules)
    15.  
      Parentheses in compound queries
    16.  
      Query rules for virtual machine Notes that contain a newline character
    17.  
      Query Builder field reference
    18.  
      Test Query screen for Hyper-V
    19.  
      Test Query: Failed virtual machines
    20.  
      Effect of Primary VM identifier parameter on Selection column in Test Query results
    21.  
      Effect of Primary VM identifier parameter on VM Name column in Test query results
    22.  
      Restoring a VM that was backed up with a Hyper-V Intelligent Policy and that has a pass-through disk
  6. NetBackup Hyper-V for SCVMM
    1.  
      About backup of virtual machines in an SCVMM environment
    2.  
      Notes on NetBackup for Hyper-V with SCVMM
    3.  
      Creating a query to back up VMs in a localized SCVMM environment
  7. Windows Server failover cluster support
    1.  
      About virtual machines on Windows 2008, 2012, and 2016 failover clusters
    2.  
      Notes on CSV backup and restore
    3.  
      Creating a policy for virtual machines in a cluster
    4.  
      Location of the restored virtual machine in a cluster
    5. Virtual machine maintenance after a restore
      1.  
        Removal of cluster resources during restore
    6.  
      Hyper-V restore may fail if the VM was created on a CSV and the CSV is a reparse point on the destination drive
  8. Back up and restore Hyper-V
    1.  
      Backing up Hyper-V virtual machines
    2.  
      WMI backup method: State of the virtual machine before and after restore
    3.  
      Notes on individual file restore
    4.  
      Notes on full virtual machine restore
    5.  
      About restoring individual files
    6.  
      Restoring individual files to a host that has a NetBackup client
    7.  
      Restore Marked Files dialog for restore of individual files
    8. Restoring individual files to a shared location on the virtual machine
      1.  
        Setting up NetBackup Client Service for restore to a shared location on the virtual machine
    9.  
      Restoring the full Hyper-V virtual machine
    10.  
      Restore Marked Files dialog for restore of the Hyper-V virtual machine
    11.  
      About restoring common files
    12.  
      The BAR interface may list Hyper-V snapshot files when you browse to restore Hyper-V VM files
  9. Use Accelerator to back up Hyper-V
    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.  
      NetBackup logs for Accelerator with virtual machines
    10.  
      About reporting the amount of Accelerator backup data that was transferred over the network
    11.  
      Replacing the Accelerator image size with the network-transferred data in NetBackup command output
  10. Best practices and more information
    1.  
      Best practices
  11. Troubleshooting
    1. NetBackup logs and how to create them
      1.  
        Enabling VxFI logging
      2.  
        Configuring VxMS and vhd logging
      3.  
        Format of the VxMS core.log and provider.log file names
    2. Errors during policy creation
      1.  
        NetBackup policy validation failed
    3. NetBackup status codes related to Hyper-V
      1.  
        Snapshot error encountered (status code 156)
    4.  
      Backup job hangs for multiple virtual machines
    5.  
      Viewing or resizing Windows NTFS shadow storage
    6.  
      The Hyper-V integration component is not installed
    7.  
      LDM volumes and status code 1
    8.  
      Hyper-V snapshots (avhd or avhdx files) and status code 1
    9.  
      Unable to log in to the NetBackup Administration Console
    10.  
      When backing up the virtual machines that reside on the same CSV, Windows warning 1584 can be ignored
    11.  
      Problems with alternate client backup
    12.  
      Restored virtual machine fails to start
    13.  
      Problem with a restart of a restored virtual machine: Why did the computer shut down unexpectedly?
    14.  
      Problems with restore of individual files
    15.  
      Problems with restore of the full virtual machine
    16.  
      Increasing the WMI create disk time-out value
    17.  
      Linux VMs and persistent device naming
  12. Appendix A. VSS backup method: Hyper-V online and offline backups
    1.  
      About Hyper-V online and offline backups for VSS
    2.  
      Conditions that determine online vs. offline backup for VSS
    3.  
      Additional notes on offline backups with VSS
    4.  
      Hyper-V 2012 R2 virtual machines may be in the Off state when restored
  13. Appendix B. Hyper-V pass-through disks
    1.  
      About Hyper-V pass-through disks with NetBackup
    2.  
      Configurations for backing up pass-through disks
    3.  
      Requirements for backing up Hyper-V pass-through disks
    4.  
      Restrictions for Hyper-V pass-through disks
    5.  
      Configuring a local snapshot backup of Hyper-V pass-through disks
    6.  
      About alternate client backup of pass-through disks
    7.  
      Configuring an alternate client backup of Hyper-V pass-through disks
    8.  
      Important note on VSS and disk arrays
  14. Appendix C. NetBackup commands to back up and restore Hyper-V virtual machines
    1.  
      Using NetBackup commands to create a Hyper-V policy
    2.  
      Using NetBackup commands to create a Hyper-V Intelligent Policy
    3.  
      The bpplinfo options for Hyper-V policies
    4.  
      bpplinclude options for modifying query rules in Hyper-V policies
    5. Examples of nbrestorevm for restoring VMs to Hyper-V
      1.  
        Hyper-V examples of restore to original location
      2.  
        Hyper-V examples of restore to alternate locations
    6.  
      The nbrestorevm -R rename file for Hyper-V
    7.  
      Notes on troubleshooting the nbrestorevm command for Hyper-V
    8.  
      Logs for troubleshooting the nbrestorevm command

NetBackup status codes related to Hyper-V

The following table describes the NetBackup status codes that are related to Hyper-V.

Table: NetBackup status codes related to Hyper-V

NetBackup status code

Explanation and recommended action

1, the requested operation was partially successful

The problem may be one of the following:

  • The problem may involve a virtual disk that is configured for Logical Disk Manager (LDM) volumes.

    See LDM volumes and status code 1.

  • A snapshot of the virtual machine (*.avhd or *.avhdx file) was created while the backup was in progress.

    See Hyper-V snapshots (avhd or avhdx files) and status code 1.

  • The virtual machine is configured with pass-through disks. NetBackup for Hyper-V does not back up pass-through disks. If all of the virtual machine's disks are pass-through, note: Only the configuration files (such as XML, bin, vsv) that represent the virtual machine are backed up.

    To back up pass-through disks, see the following:

    See About Hyper-V pass-through disks with NetBackup.

42, network read failed

The Windows shadow storage for the volume may have insufficient space to hold all required snapshots. A larger shadow storage area may be required.

See Viewing or resizing Windows NTFS shadow storage .

48, client hostname could not be found

The problem may be one of the following:

  • The NetBackup master server cannot communicate with the virtual machine.

  • The host name of the virtual machine is not available.

    The NetBackup job details log contains the following message:

    Error bpbrm(pid=8072) Nameuse [0], VM [<vm name>]
not found on any node. Is either powered off or does 
not exist.

    The virtual machine is either not running, or it is starting up. Make sure that the virtual machine is running and then rerun the backup.

156, snapshot error encountered

See Snapshot error encountered (status code 156).

185, tar did not find all the files to be restored

If you attempt to do a full restore of two VMs at the same time, note: If the two VMs share a virtual hard disk that contains a file that both restore jobs must restore, a race condition may result. The two jobs may simultaneously attempt to access the same file, but only one job gains access to the file. The other job is denied access, and that job may fail with status code 185.

After the first restore job successfully completes, retry the second job.

2821 Hyper-V policy restore error

The problem may be one of the following:

  • In a full virtual machine restore, the Overwrite virtual machine option was not selected: A virtual machine with the same GUID exists on the destination server. If a virtual machine with the same GUID exists on the destination server, you must select Overwrite virtual machine.

    Note:

    In an SCVMM environment, the VM GUID is referred to as the VM ID.

  • For individual file restore through a shared location on the destination virtual machine, one or more of the files is larger than 2 GB. Restore such files to a virtual machine that has a NetBackup client. (This issue does not apply to recovery of the full virtual machine.)

  • In a restore of common files, the virtual machines that use the common files were in the Running or Paused state. The virtual machines that use the common files must be in the Off or Saved state. Otherwise, a virtual machine may have a lock on the common files.

  • The virtual machine is highly available (HA). But the node that owns the virtual machine is not the restore server (the node that performs the restore).

    See Problems with restore of the full virtual machine.

  • The virtual machine restore job fails but the virtual machine is nonetheless registered in the Hyper-V server.

    See Problems with restore of the full virtual machine.

  • A redirected restore failed because the virtual machine had *.avhd or *.avhdx file(s) when it was backed up. The restore system is earlier than Windows Server 2008 R2.

    The tar log contains the following:

    Redirected restore of VM having [.avhd] files is
not supported on this platform. It is supported on 
[Windows server 2008 R2] onwards.

  • A redirected restore failed because the virtual machine is configured in a volume GUID and its differencing disk is configured in another volume GUID.

    See Restored virtual machine fails to start.

  • From a backup that was made with the WMI method, the restore failed because it took too long to write the virtual disk. This error may occur if the VM has a large fixed virtual disk.

    See Increasing the WMI create disk time-out value.