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  1. Home
  2. Veritas NetBackup™ for Hyper-V Administrator's Guide
  3. Appendix C. NetBackup commands to back up and restore Hyper-V virtual machines
  4. The bpplinfo options for Hyper-V policies
Veritas NetBackup™ for Hyper-V Administrator's Guide

The bpplinfo options for Hyper-V policies

Table: The bpplinfo options for Hyper-V describes the options that are available on the NetBackup bpplinfo command.

Table: The bpplinfo options for Hyper-V

Option

Backup method

Values

Required?

Navigation in policy editor of NetBackup Administration Console

-use_virtual_machine

WMI, VSS

2

Y

-hyperv_server

WMI, VSS

The name of the Hyper-V server

Y

Clients tab > Hyper-V server

-application_discovery

WMI, VSS

0 disabled, 1 enabled

N (only for automatic selection of VMs through a query rule)

Clients tab > Select automatically through Hyper-V Intelligent Policy query

-blkincr

WMI

For block-level incremental backup

0 disabled, 1 enabled

N (required for Accelerator)

Hyper-V tab

-use_accelerator

WMI

0 disabled, 1 enabled

N

Hyper-V tab

-snapshot_method

WMI, VSS

HV (for WMI)

Hyper-V_v2 (for VSS)

Y

Hyper-V tab

-offhost_backup

VSS

0 No off-host backup (default)

1 Use off-host backup method (for alternate client)

N

Attributes tab > Perform off-host backup

-use_alt_client

VSS

0 No alternate client

1 Use an alternate client

Y (with -offhost_backup option)

Attributes tab > Perform off-host backup > Use

alt_client_name

VSS

The name of the alternate client

Y (with use_alt_client)

Attributes tab > Perform off-host backup > Machine

snapshot_method_args

WMI, VSS

keyword=value, keyword=value,...

Table: Keywords and values for snapshot_method_args

N

Table: Keywords and values for snapshot_method_args describes the keywords for -snapshot_method_args.

Table: Keywords and values for snapshot_method_args

Keyword

Backup method

Values

Navigation in policy editor of NetBackup Administration Console

Virtual_machine_ backup=

WMI, VSS

1 Disable file-level recovery

2 Enable file-level recovery

Hyper-V tab > Enable file recovery from VM backup

nameuse=

WMI, VSS

0 Use VM host name to identify backup image

1 Use VM display name to identify backup image

2 Use VM GUID to identify backup image

Hyper-V tab > Primary VM identifier

allow_offline_ backup=

VSS

0 Do not allow offline backup of non-VSS virtual machines

1 Allow offline backup of non-VSS virtual machines

Hyper-V tab > Enable offline backup of non-VSS VMs

csv_timeout=

VSS

Determines how many minutes the backup job waits, in case another node in the cluster backs up the same shared volume at the same time.

The default is 180 (wait for 3 hours). A wait of 3 hours is recommended if you have multiple virtual machines on one CSV. The Windows 2008 R2 cluster node owns the CSV for the entire duration of the backup.

If you do not want NetBackup to wait for another backup to release the shared volume, set the value to 0. If at the same time another node in the cluster backs up a shared volume that this backup requires, the backup fails with status 156.

Note:

On Windows server 2012, cluster nodes can back up the same CSV simultaneously. As a result, NetBackup does not use this option if the cluster is on Windows 2012.

Hyper-V tab > Cluster shared volumes timeout

prov_type=

VSS

0 Automatic selection of provider. Allows VSS to use the best possible provider for the snapshot.

1 Use system provider

2 Use software provider

3 Use hardware array provider

Hyper-V tab > Advanced > Provider Type

snap_attr=

VSS

0 (default)

1 Differential. Use copy-on-write snapshot method.

2 Plex. Use clone or mirror snapshot method.

Hyper-V tab > Advanced > Snapshot Attribute

file_system_

optimization=

WMI

0 Disable file system optimization

1 Enable file system optimization

File system optimization is enabled if either or both of the following are selected:

Hyper-V tab > Exclude deleted blocks

Hyper-V tab > Exclude swap and paging files

exclude_swap=

WMI

Reduces the size of the backup image by excluding the data in the guest OS system paging file (Windows) or the swap file (Linux).

0 Disable

1 Enable

Hyper-V tab

snapact=

WMI

3 Abort if NetBackup snapshots exist

Hyper-V tab > Advanced > Existing snapshot handling

drive_selection=

WMI

0 Include all disks

1 Exclude boot disk

2 Exclude data disks

Hyper-V tab > Advanced > Virtual disk selection

hv_snapshot_ consistency_level=

WMI

Determines whether the VM's file system data is consistent (quiesced) before the backup starts.

0 Application Consistent Then Crash Consistent

1 Application Consistent

2 Crash Consistent

Hyper-V tab > Advanced > Consistency level

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