Veritas NetBackup™ for VMware Administrator's Guide

Last Published:
Product(s): NetBackup (8.1)
  1. Introduction
    1.  
      About NetBackup for VMware
    2.  
      Updates to this guide for NetBackup 8.1
    3.  
      About the virtual machine backups that include database data
    4.  
      About the NetBackup appliance as a VMware backup host
    5.  
      NetBackup for VMware components
    6.  
      Appliance as backup host: component overview
    7.  
      Media servers as backup or discovery hosts
    8.  
      Overview of the VMware backup process
    9.  
      NetBackup for VMware license requirement
    10.  
      NetBackup for VMware terminology
  2. Required tasks: overview
    1.  
      Overview of VMware tasks
    2.  
      Overview of NetBackup tasks
  3. Notes and prerequisites
    1.  
      NetBackup for VMware prerequisites
    2.  
      NetBackup for VMware: notes and restrictions
    3.  
      Notes on VMware Virtual Volumes (VVols)
    4.  
      NetBackup IPv6 parameter required for backups in VMware IPv6 environments
    5.  
      NetBackup for VMware: notes on Linux virtual machines
    6.  
      Notes on the NetBackup appliance as a VMware backup host
    7.  
      NetBackup for VMware support for SAN multi-pathing
    8.  
      NetBackup for VMware support for fault tolerant VMs
    9.  
      NetBackup character restrictions for the Primary VM identifier
    10.  
      In the policy Query Builder, display names, resource pool names, and vApp names are case-sensitive
    11.  
      Notes on the hotadd transport mode
    12.  
      Notes and limitations for tag usage in VMware Intelligent Policy queries
    13.  
      Notes and limitations for the backup and restore of VMware tag associations
  4. Configure NetBackup communication with VMware
    1.  
      Adding the VMware backup host to NetBackup
    2. Adding NetBackup credentials for VMware
      1.  
        Using the VMware Managed Object Browser to verify the server name
    3.  
      Changing the host name of a VMware server in NetBackup
    4.  
      Setting privileges for posting events to vCenter
    5.  
      Authentication token for the NetBackup vSphere Web Client plug-in
    6.  
      Setting global limits on the use of VMware resources
  5. Configure NetBackup policies for VMware
    1.  
      Configuring a VMware policy from the Policy Wizard
    2.  
      Configuring a VMware policy from the Policies utility
    3.  
      Limit jobs per policy on the Attributes tab (for VMware)
    4. VMware backup options
      1.  
        VMware backup host
      2.  
        Optimizations options (VMware)
      3.  
        Primary VM identifier options (VMware)
      4.  
        Existing snapshot handling options (VMware)
      5.  
        Transport modes options (VMware)
      6.  
        Application protection options (VMware)
      7.  
        VMware - Advanced Attributes dialog
      8.  
        About the Post vCenter events option (VMware Advanced Attributes)
    5. Exclude Disks tab
      1.  
        About the exclude disk options for virtual disk selection
      2.  
        Exclude disks from backups: an example to avoid
      3.  
        Restoring data from the backups that excluded the boot disk or data disks
    6.  
      Browse for VMware virtual machines
    7.  
      Limiting the VMware servers that NetBackup searches when browsing for virtual machines
    8.  
      Virtual machine host names and display names should be unique if VMs are selected manually in the policy
    9.  
      Primary VM identifier option and manual selection of virtual machines
    10.  
      About incremental backups of virtual machines
    11.  
      Configuring incremental backups
    12.  
      Storage Foundation Volume Manager volumes in the virtual machine
  6. Configure a VMware Intelligent Policy
    1.  
      About automatic virtual machine selection for NetBackup for VMware
    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.  
      Configuring automatic virtual machine selection
    9.  
      Editing an existing query in Basic Mode
    10.  
      Using the Query Builder in Advanced Mode
    11.  
      AND vs. OR in queries
    12.  
      Examples for the NetBackup Query Builder
    13.  
      The IsSet operator in queries
    14.  
      About selecting virtual machines by means of multiple policies
    15.  
      Order of operations in queries (precedence rules)
    16.  
      Parentheses in compound queries
    17.  
      Query rules for resource pools
    18.  
      Query rules for datacenter folders (host folder)
    19.  
      Query rules for duplicate names
    20.  
      Query rules for tags
    21.  
      Query Builder field reference
    22.  
      Test Query screen for VMware
    23.  
      Test Query: Failed virtual machines
    24.  
      Effect of Primary VM identifier parameter on Selection column in Test Query results
    25.  
      Effect of Primary VM identifier parameter on VM Name column in Test query results
    26.  
      Refreshing the display of virtual environment changes in the Query Builder
  7. Reduce the size of backups
    1.  
      About reducing the size of VMware backups
    2.  
      Block-level backup (BLIB): full vs incremental
    3.  
      Deleting a vSphere Client snapshot
  8. Back up virtual machines
    1.  
      Backing up virtual machines
    2.  
      Using the Activity Monitor to monitor virtual machine backups
    3.  
      Restarting jobs individually in the Activity Monitor
    4.  
      Viewing NetBackup activity in vSphere Web Client
    5.  
      Using OpsCenter to report on virtual machine backups
  9. 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.  
      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. Restore virtual machines
    1.  
      Restore notes and restrictions
    2.  
      Restore notes and restrictions on Linux
    3. Restoring the full VMware virtual machine
      1. Virtual Machine Recovery dialog boxes (restore to original location)
        1.  
          Recovery Destination dialog box
        2.  
          Recovery Options dialog box
        3.  
          Virtual Machine Options dialog box
        4.  
          Perform Recovery dialog box
      2. Virtual Machine Recovery dialogs boxes (restore to alternate location)
        1.  
          Recovery Destination dialog box (restore to alternate location)
        2.  
          Recovery Options dialog box (restore to alternate location)
        3.  
          Select ESX server dialog box (restore to alternate location)
        4.  
          Select Folder dialog box (restore to alternate location)
        5.  
          Select Datastore or Datastore Cluster dialog box (restore to alternate location)
        6.  
          Storage Destination dialog box (restore to alternate location)
        7.  
          Network Connections and Other Recovery Options dialog box (restore to alternate location)
        8.  
          Perform Recovery dialog box (restore to alternate location)
    4.  
      About VMware virtual machine disk restore
    5. Restoring VMware virtual machine disks by using Backup, Archive, and Restore
      1.  
        Select Virtual Disks panel
      2.  
        Recovery Destination panel
      3.  
        Virtual Disk Destination panel
      4.  
        Storage Destination panel
      5.  
        Recovery Summary panel
    6. Restoring VMware virtual machine disks by using NetBackup commands
      1.  
        Determining the backup image ID from which to restore a VMware virtual machine disk
      2.  
        Creating the VMware virtual machine disk restore file
      3.  
        Modifying the virtual machine disk restore file
      4.  
        Validating the virtual machine disk restore file
      5.  
        Restoring the virtual machine disk or disks by using the nbrestorevm command
      6.  
        VMware virtual machine disk restore file
    7.  
      About restoring individual VMware files
    8. Restoring individual VMware virtual machine files
      1.  
        Setting up NetBackup Client Service for VMware restores to a Windows shared virtual machine drive
      2.  
        Restore Marked Files dialog for restore of VMware files
    9.  
      How NetBackup handles VMware tag associations at restore
    10. Browse and search virtual machines for restore
      1.  
        Search Virtual Machines for Restore dialog
      2.  
        Browse the vCloud or vSphere view for virtual machine clients
      3.  
        Search results dialog
    11.  
      If the recovery host is not at the same NetBackup release level as the backup host
  11. 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
  12. Use NetBackup for vCloud Director
    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.  
      Restoring virtual machines into vCloud Director
    5.  
      Reducing the time required for VM discovery in a large vCloud environment
    6. Virtual machine recovery dialog boxes for vCloud Director
      1.  
        Recovery Destination dialog box (vCloud Director)
      2.  
        Recovery Options dialog box (vCloud Director)
      3.  
        Recovery vApp Options for vCloud Director dialog box (restore to original location)
      4.  
        Virtual Machine Options dialog box for vCloud Director
      5.  
        Perform Recovery dialog box for vCloud Director
      6.  
        Recovery Options dialog box for vCloud Director (restore to alternate location)
      7.  
        Recovery vApp Options for vCloud Director dialog box (restore to alternate location)
      8.  
        Select a vApp dialog box
      9.  
        Recovery Destination Options for vCloud Director dialog box (restore to alternate location)
      10.  
        Virtual Machine Options (restore to alternate location)
      11.  
        Network connections (restore to alternate location)
      12.  
        Perform Recovery dialog box for vCloud Director (restore to alternate location)
  13. Best practices and more information
    1. NetBackup for VMware best practices
      1.  
        NetBackup for VMware with deduplication
    2.  
      Best practices for VMware tag usage
    3.  
      Further assistance with NetBackup for VMware
  14. Troubleshooting
    1.  
      Notes on troubleshooting NetBackup for VMware
    2.  
      Beware of unsupported backup host
    3.  
      How to determine the ESX network that NetBackup used for the backup or restore
    4.  
      NetBackup logging for VMware
    5.  
      Configuring VxMS logging
    6.  
      Format of the VxMS core.log and provider.log file names
    7.  
      Configuring the VDDK logging level
    8.  
      Preventing browsing delays caused by DNS problems
    9.  
      Changing the browsing timeout for virtual machine discovery
    10.  
      Changing timeout and logging values for vSphere
    11.  
      Credentials for VMware server are not valid
    12.  
      Snapshot error encountered (status code 156)
    13.  
      The origin of the snapshot failure: NetBackup or VMware?
    14.  
      Conflict between NetBackup and VMware Storage vMotion with vSphere 5.0 or later
    15.  
      Incremental backups of the VM may fail if the NTFS file system in the guest OS is corrupted and the backup uses MSDP storage
    16.  
      The restore fails when you restore individual files to a virtual machine that has NetBackup client software
    17.  
      Backup or restore job hangs
    18.  
      VMware SCSI requirements for application quiesce on Windows
    19.  
      Mount point missing on a restored Windows virtual machine
    20.  
      Mount points not available when restoring files from a Linux virtual machine
    21.  
      Invalid client error when you restore files using NetBackup BAR interface installed on the virtual machine
    22.  
      VMware virtual machine does not restart after restore
    23.  
      A restored VM may not start or its file system(s) may not be accessible
    24.  
      NetBackup job fails due to update tasks on the VMware server
    25.  
      The vSphere interface reports that virtual machine consolidation is needed
    26.  
      The Enable file recovery from VM backup option does not work if a volume disk set contains a mixture of disk types
    27.  
      Linux VMs and persistent device naming
    28.  
      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
    29.  
      Simultaneous hotadd backups (from the same VMware backup host) fail with status 13
    30.  
      Troubleshooting VMware tag usage
    31.  
      Ensuring that guest customizations can be restored in vCloud Director
    32.  
      Troubleshooting vmdk restore to existing VM
  15. Appendix A. NetBackup commands to back up and restore virtual machines
    1. Using NetBackup commands to create a VMware policy
      1.  
        Notes on creating a VMware policy for vCloud Director
      2.  
        VMware policy: bpplinfo options and keywords
      3.  
        bpplinclude options for modifying query rules in a VMware policy
    2.  
      Using the nbdiscover command to search the virtual environment
    3.  
      Using the nbrestorevm command to restore virtual machines into vSphere
    4.  
      Using the nbrestorevm command to restore virtual machines into vCloud Director
    5.  
      Using the nbrestorevm command to restore virtual machine disks
    6.  
      The nbrestorevm -R rename file for restoring virtual machines
    7.  
      Logs for troubleshooting the nbrestorevm command
    8.  
      Query format and examples for searching virtual machine backups
    9.  
      Allowing other servers or clients to restore virtual machines
  16. Appendix B. 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. About configuring services for NFS on Windows 2008 and 2008 R2 (NetBackup for VMware)
      1.  
        Enabling Services for Network File System (NFS) on Windows 2008 or 2008 R2 (NetBackup for VMware)
    4.  
      Disabling the Server for NFS (NetBackup for VMware)
    5.  
      Disabling the Client for NFS on the media server (NetBackup for VMware)
    6.  
      Configuring a UNIX media server and Windows backup or restore host for Granular Recovery Technology (NetBackup for VMware)
    7.  
      Configuring a different network port for NBFSD (NetBackup for VMware)
  17. Appendix C. The Reuse VM selection query results option
    1.  
      About the Reuse VM selection query results option
    2.  
      The effect of virtual machine discovery on vCenter
  18. Appendix D. Backup 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.  
      Configuring alternate client backup of RDMs

NetBackup for VMware: notes and restrictions

Note the following about NetBackup for VMware:

  • For information on supported VMware versions and on supported platforms for the backup host, see the NetBackup Enterprise Server and Server OS Software Compatibility List available from the following location:

    NetBackup Master Compatibility List

    For additional support information on NetBackup for VMware, see Support for NetBackup in virtual environments:

    http://www.veritas.com/docs/000006177

  • NetBackup for VMware does not support the Retain snapshot for Instant Recovery or SLP ... option on the policy Attributes tab of the Administration Console.

    NetBackup supports these features as follows:

    • For Instant Recovery, use the nbrestorevm command.

      See About Instant Recovery for VMware.

    • For SLP management of snapshots, use Replication Director.

      For more information, see the NetBackup Replication Director Solutions Guide.

  • NetBackup allows up to 31 snapshots per virtual machine. If the virtual machine has more than 31 snapshots, the backup may fail with status 13. Messages similar to the following appear in the NetBackup job details:

    10/18/2012 4:56:59 PM - Critical bpbrm(pid=4604)from client 
    Umesh_w2k3_hypervm33: FTL - vSphere_freeze: Unable to remove
    existing snapshot, too many existing snapshots (91).
    10/18/2012 4:56:59 PM - Critical bpbrm(pid=4604) from client
    Umesh_w2k3_hypervm33: FTL - VMware_freeze: VIXAPI freeze
    (VMware snapshot) failed with 26: SYM_VMC_REMOVE_SNAPSHOT_FAILED

    As a reminder to consolidate or delete snapshots, the NetBackup detailed status provides the following message when the number of snapshots exceeds 15:

    Umesh_w2k3_hypervm33: WRN - vSphere_freeze: VM has 16 existing 
    snapshots. Snapshots may start failing if this number exceeds 32

    To back up a virtual machine that has more than 31 snapshots, consolidate or delete the existing snapshots. Then rerun the backup.

    Note:

    Replication Director backups allow more than 31 snapshots per virtual machine.

  • If the number of snapshot delta files for a VM's vmdk exceeds 32, snapshot creation fails. A message similar to the following appears in the NetBackup detailed status:

    Umesh_w2k3_hypervm33: FTL - vSphere_freeze: Unable to 
    proceed with snapshot creation, too many existing delta files(50).

    As a reminder to consolidate or delete snapshots, the NetBackup detailed status provides the following message when a vmdk's delta files exceed 16:

    Umesh_23k3_hypervm33: WRN - vSphere_freeze: VM has 17 existing 
    delta files for vmdk Umesh_23k3_hypervm33.vmdk. Snapshots may start 
    failing if this number exceeds 31

    Delta files can accumulate if the VM's snapshots are not deleted or consolidated. Consolidate or delete the existing snapshots, then rerun the backup.

  • NetBackup for VMware cannot back up the data on an independent disk, because an independent disk cannot be captured with a snapshot. The backup succeeds but the backup image contains no data for the independent disk.

    To back up the data on an independent disk, install a NetBackup client on the virtual machine. You can configure NetBackup to back up the virtual machine and any independent disks as if the client was installed on a physical host. You can restore the virtual machine and then restore the independent disk as a separate job.

  • NetBackup for VMware does not back up standard iSCSI LUNs that are connected to the virtual machine. If the virtual machine has an iSCSI LUN, the backup succeeds but the drive that represents the LUN is not backed up.

    Note: NetBackup for VMware supports datastores over iSCSI.

  • Several notes and limitations apply to Linux virtual machines.

    See NetBackup for VMware: notes on Linux virtual machines.

  • If a Windows virtual machine includes Veritas Storage Foundation volumes, the Enable file recovery from VM backup option is not supported.

    See Storage Foundation Volume Manager volumes in the virtual machine.

  • During an incremental backup with the Enable file recovery from VM backup option (with or without block-level incremental backup), any files that had been moved or renamed are not backed up. Those files are not available when you browse to restore individual files from that incremental backup.

    Note:

    When you restore the entire VM from a block-level incremental backup, the file metadata is updated and the moved or renamed files reflect the updated metadata.

  • VMware virtual machine templates are for cloning virtual machines: They cannot be turned on and used as functioning VMs. As a result, VMware has imposed the following restrictions on backup and restore of virtual machine templates:

    • A virtual machine template cannot be captured in a snapshot. NetBackup backs up the template to the designated storage unit.

    • Block level incremental backup (BLIB) cannot be used when backing up a virtual machine template.

      Note:

      As a result of this restriction, NetBackup Accelerator cannot be used to back up VMware virtual machine templates.

    • A virtual machine template cannot be backed up over a SAN. You must configure the NetBackup policy to use a local network transfer type, such as nbd. Likewise, the restore of a template must be conducted over a local network.

      Note:

      You can use the Query Builder in the NetBackup policy to create rules for automatic selection of virtual machine templates.

  • NetBackup supports non-ASCII characters in virtual machine objects, as follows:

    • The NetBackup master server, the backup host, and the restore host must run NetBackup 8.1 or later. The backup host and the restore host may be the same computer.

    • The UNIX and Linux operating systems on the NetBackup master server, the backup host, and the restore host must use UTF-8 character encoding. The backup host and the restore host may be the same computer.

    • The name that NetBackup uses to select a VM for backups cannot contain non-ASCII characters. The Primary VM identifier field in the backup policy identifies the name type that NetBackup uses to select VMs. For example, if you specify VM display name as the Primary VM identifier, the display name of each VM that you back up cannot contain non-ASCII characters.

      See Primary VM identifier options (VMware).

      VM BIOS UUID and VM instance UUID names never contain non-ASCII characters.

    • For security purposes, VM names have some restrictions.

      See NetBackup character restrictions for the Primary VM identifier.

    Examples of objects are file and folder names, annotations, floppy image name, parallel port or serial port file name, CD-ROM ISO name, and so on.

  • For dual-boot virtual machines, NetBackup does not support the following policy options:

    • Enable file recovery from VM backup

    • Exclude deleted blocks

    • Exclude swap and paging files

    • Exclude boot disk

    • Exclude all data disks

  • To support the following exclude disk options, the backup host must be at release level 8.1 or later:

    • Perform custom attribute based exclusion

      Custom Attribute based disk exclusion requires that you enter in NetBackup the credentials for the vCenter server or servers that host the VMs. ESXi server credentials are not sufficient.

      See Adding NetBackup credentials for VMware.

    • Specific disk(s) to be excluded

  • NetBackup does not support the following exclude disks options for Replication Director backups:

    • Exclude boot disk

    • Exclude all data disks

    • Perform custom attribute based exclusion

    • Specific disk(s) to be excluded

  • If you remove a disk from exclusion, the individual files that were last modified before the most recent backup cannot be restored. To restore those files, restore the entire virtual disk or the virtual machine. After the next full backup, those files are available to restore individually.

  • NetBackup fails the backups of virtual machines that are empty. A VM may be empty because all of its disks are empty or because disk exclusion excludes all disks.

  • To back up a virtual machine while Storage vMotion migrates its files, NetBackup must conduct the backup through the vCenter server.

    See Conflict between NetBackup and VMware Storage vMotion with vSphere 5.0 or later.

  • Several notes and limitations apply to the automatic selection of virtual machines for backup (Virtual Machine Intelligent Policy).

    See NetBackup requirements for automatic virtual machine selection.

  • For hotadd backup or restore: The virtual machine to back up (or restore) and the virtual machine that contains the hotadd backup host must reside in the same VMware data center.

    See Notes on the hotadd transport mode.

  • NetBackup for VMware supports Windows NTFS file encryption and compression, for backup and restore. However, NetBackup for VMware does not support NetBackup's compression or encryption options (in the NetBackup policy attributes).

    For Windows, UNIX, or Linux guest operating systems: NetBackup for VMware does not support any type of compression or encryption, whether they are set in NetBackup or in the guest OS (such as BitLocker).

    Note:

    The compressed Windows NTFS files are backed up and restored as compressed files.

  • Storage optimization cannot be used if a snapshot exists on the virtual machine when VMware Changed Block Tracking is turned on.

    See About reducing the size of VMware backups.

  • If the policy's Primary VM identifier option is set to VM hostname, note: NetBackup cannot select a VMware virtual machine for backup if it cannot obtain an IP address for the virtual machine.

  • For Exchange, SharePoint, and SQL applications, NetBackup for VMware supports Granular Recovery Technology (GRT) restores from full backups only.

  • Exchange, SharePoint, and SQL Server databases are not cataloged and backed up if they exist in mount point volumes.

  • See Restore notes and restrictions.

  • If a policy is changed from manual selection to Intelligent policy (or vice versa), the next backup of the VM is a regular full backup, even if a backup already exists for that VM.

    For example:

    • In a new VMware policy, the Select manually option on the Clients tab is used to select a VM. The first backup from the policy runs.

    • In the policy, an Intelligent Policy query is used to select the same VM, and the VM is backed up a second time. Because of the switch from manual selection to query-based selection, this second backup is a regular full backup. Note that for a policy that uses Enable block-level incremental backup (BLIB) or BLIB plus Accelerator, the backup processing is not limited to changed blocks only.

      For the second backup, the Detailed status log includes a message similar to the following:

      There is no complete backup image match, a regular full backup 
      will be performed.
      

    The same backup behavior occurs if the policy's VM selection is switched from query-based to manual selection: The second backup is a regular full backup.

  • For the virtual machines that vSphere 6.5 hosts, NetBackup fails the backup if a snapshot exists while NetBackup tries to enable VMware Change Block Tracking. Because the VMware Change Block Tracking API behavior changed beginning in vSphere 6.5, NetBackup fails the backup.

    NetBackup enables CBT on a VM if Block Level Incremental Backups is enabled in the backup policy and CBT is not enabled already on the VM.