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NetBackup™ Bare Metal Restore 管理指南

Last Published: 2026-06-03

Product(s): NetBackup (11.0)

Preparing a client for restore

Review the secure communication compatibility matrix for BMR for NetBackup 8.1.1 and later releases before you proceed with the prepare to restore operation.

请参见针对 NetBackup 8.1.1 及更高版本执行 BMR 的安全通信兼容性列表。

Before you restore a client, you must prepare to restore (PTR) the client.

During a prepare-to-restore operation, the NetBackup master server does the following:

Retrieves the client configuration from the master server database.
Creates the restore script and the configuration files that are used to restore the client.
Allocates the boot server resources for the selected client recovery.

When you prepare to restore a client, you select the configuration to use for the restore, as follows:

For a standard restore (also known as a self restore, which is a restore to the same system), select the current configuration.
For other types of restores, select the configuration that you created for the restore.

To ensure that the restore includes the most recent data, Cohesity recommends that you prepare to restore immediately before you restore a system.

For more information on commands, refer to the NetBackup Commands Reference Guide.

To prepare a client for restore using the bmrprep command

Login as an administrator.
Run the bpnbat command.
Run the bmrprep command to initiate a prepare to restore operation.
When you run the bmrprep command, validation checks are performed pertaining to the different parameters such as SRT version, configuration version, and so on.
- If the validation checks for prepare to restore are successful, then the client is marked for automatic recovery. This automatic recovery is by default valid for 48 hours. Master server authenticity is validated automatically and a host-ID based certificate is automatically issued to this client during the automatic recovery process.
  Use the nbhostmgmt command to verify whether the client is marked for automatic recovery.
  For more information about the automatic recovery and the host-ID based certificate, refer to the NetBackup Security and Encryption Guide
  https://support.cohesity.com/s/article/article-100040135
- If the validation checks fail, appropriate error messages are displayed. Follow the instructions that are provided in the message.
  For more information, 请参见Error messages for prepare to restore, prepare to discover, and the bmrprep command with reference to secure communication in BMR。

The client is ready for restore.

To prepare a client for restore using the NetBackup web UI

In the NetBackup web UI, expand Bare Metal Restore > Hosts > Bare Metal Restore clients.
Select a client or a client configuration.
Select Actions > Prepare to Restore.
In the Prepare to Restore Client dialog box, select the appropriate values for the restore.
Some fields may be completed depending on whether you selected a client or a client configuration.
If some other PTR options are selected, 请参见BMR 磁盘恢复行为。
Click OK.
Bare Metal Restore runs all the processes to prepare for a restore.
When you click Prepare to Restore, validation checks are performed pertaining to the different parameters such as SRT version, configuration version, and so on.
- If the validation checks for prepare to restore are successful, then the client is marked for automatic recovery. This automatic recovery is by default valid for 48 hours. Master server authenticity is validated automatically and a host-ID based certificate is automatically issued to this client during the automatic recovery process.
  Use the nbhostmgmt command to verify whether the client is marked for automatic recovery.
  For more information about the automatic recovery and the host-ID based certificate, refer to the NetBackup Security and Encryption Guide
  https://support.cohesity.com/s/article/article-100040135
  https://support.cohesity.com/s/article/article-100040135
- If the validation checks fail, appropriate error messages are displayed. Follow the instructions that are provided in the message.
  For more information,
After the processes finish, in the dialog box that appears, click OK.
The client is listed in the Bare Metal Restore Tasks in Queued state. The Prepare-To-Restore step may take few minutes to complete.

To clean up the restore configuration

In the NetBackup web UI, click Bare Metal Restore > BMR Tasks.
In the details pane, right-click the client for which you want to clean up the restore configuration.
Select Clean Up from the shortcut menu.
The resources that the task uses are unallocated, the State is set to Done, and Status is set to 150, terminated by user.