To create a policy for alternate client backup of a pass-through disk

1. Open the NetBackup web UI .
2. On the left, click Protection > Policies. Then create a new policy.
3. On the policy Attributes tab, select the MS-Windows policy type or the FlashBackup-Windows policy type.
4. Click Perform snapshot backups.
5. Optional: click Retain snapshot for Instant Recovery or SLP management.
6. Click Perform off-host backup.
7. In the Use list, select Alternate client.
8. For Machine, enter the name of the host that is configured as an off-host backup computer (the alternate client).
9. Click Snapshot options.
10. Select the VSS snapshot method.

    The Hyper-V method does not apply to alternate client backup and is not available in the list.

    The array may require additional OS and NetBackup configuration as described in the NetBackup Snapshot Manager for Data Center Administrator's Guide.

11. Specify snapshot options for VSS.

    Select the following:

    • Provider Type: For disk arrays, select 3-hardware as the provider type.

      Depending on your array and on the snapshot attribute you select, certain preconfiguration of the array may be required. In the NetBackup Snapshot Manager for Data Center Administrator's Guide guide for information on disk arrays.

      For pass-through disks, note: Instant Recovery point-in-time rollback is not supported for the backups that were made with a hardware provider (VSS provider type of 3-hardware). Copy back restore is supported.

      See Provider type configuration parameter (VSS).

      See Restrictions for Hyper-V pass-through disks.

    • Snapshot Attribute: Select 1-differential (for a copy-on-write type of snapshot) or 2-plex (for a clone type or mirror type of snapshot). The choice depends on the hardware provider that is used with the disk array.

    • Maximum snapshots (Instant Recovery only): This option sets the maximum number of Instant Recovery snapshots to be retained at one time.

      For more information on this option, refer to the NetBackup Snapshot Manager for Data Center Administrator's Guide guide.

12. On the Clients tab, specify the virtual machine that has a pass-through disk configured.
13. On the Backup selections tab, specify the pass-through disk that you want to back up, or the files or volumes that reside on the pass-through disk.