NetVault Backup Plug-in for NDMP 11.4.5 - Application Notes for NetApp ONTAP

Restoring data using the plug-in

1
On the Create Restore Job — Choose Saveset page, the saveset table provides a list of available savesets.

Saveset is online (all segments are online).

Saveset is partially online (some segments are online).

Saveset is offline (all segments are offline).

Client

Displays savesets created for particular clients. The default selection is Any.

2
In the Choose Client dialog box, select the clients.

Plugin Type

Displays savesets created using a particular plug-in. The default selection is Any.

Date

Displays savesets created during a specified period. The default selection is Any.

Job

Displays savesets created for particular jobs. The default selection is Any.

2
In the Choose Job dialog box, select the jobs.
When you select a saveset, the following details are displayed in the Saveset Information area: job ID number, job title, tag, server name, client name, plug-in name, saveset date and time, retirement setting, Incremental Backup or not, archive or not, and saveset size.
4
On the Create Selection Set page, select the data that you want to restore:
Restore entire saveset: Select the root node.
Restore individual files and directories: Select the target files and directories in the selections tree. The selections tree can only be browsed if the Save File Information option was selected during backup.
If the backup contains a single file, the filename is added to the directory path. In the selection tree, it is displayed as /path/to/filename/filename and it is restored in that manner. The file is restored correctly if you select the directory and restore the file.
NOTE: While restoring data from a snapshot backup, you must use the Relocate option. If you do not use this option, the restore job fails. The Relocate option allows you to relocate data to the same or a different volume. For more information about relocating data, see Renaming or relocating data.

If you omit child-level items after selecting the parent node, the job fails. To perform selective restores, open the parent node, and select each item that you want to restore.
5
Click Edit Plugin Options, and configure the following settings.

NDMP Server

This option specifies the target filer name. It is only required when you want to restore data to an alternate filer. By default, it is set to the name of the original filer from which the data was backed up. Do not change the NDMP Server while restoring data to the same filer.

Direct Access Restore Mode

Select the appropriate Direct Access Restore (DAR) mode from the following:

Use Direct Access Restore if Possible: To perform a direct-access restore if the backup was direct and the mover and data server can complete a direct-access restore, select this option. If these conditions are not met, a nondirect-access restore is performed.
Use Direct Access Restore by Recovering Individual Files: To restore a directory and its file contents, select this option. When you use this option, empty directories in the saveset are ignored.
Only Do Direct Access Restore: To force a direct-access restore, select this option. It can be only used if the backup was direct and the mover and data server can complete a direct-access restore; otherwise the restore job fails.
Never Do Direct Access Restore: To perform a standard nondirect-access restore, select this option.

Incremental Restore

To recursively extract data and reconstruct the selected subtree to the state it was in at the time of backup, select this check box.

This option is equivalent to setting the environment variable EXTRACT=N. The plug-in overwrites the existing files and deletes the files that were not present at the time of backup.

Restore ACLs

To restore ACLs from the backed-up file, select this option. This option is equivalent to setting the environment variable EXTRACT_ACL=Y. You can use this option only if the Backup ACLs option was selected during backup.

IMPORTANT:  
6
To save the settings, click OK, and then click Next.
7
In Job Name, specify a name for the job.
In the Target Client list, the client from which data was backed up is selected by default. Do not change this setting.
For more information about these sets, see the Quest NetVault Backup Administrator’s Guide.
You can monitor the job progress from the Job Status page and view the logs from the View Logs page. For more information about these functions, see the Quest NetVault Backup Administrator’s Guide.

Additional notes

When restoring data, you may notice one or more of the following entries in the NetVault Backup logs. These messages are routine and do not require any intervention:

Mover has paused due to seek outside the supplied window: This entry is displayed as a Background message. BRE backups create a segment on tape for each checkpoint (as configured in Number of Gigabytes Between Checkpoints in the Backup Options Set). This message is displayed after each individual segment is restored and it just indicates the underlying mechanism behind the NDMP operation.
Received media request for UID: This entry is displayed as an Information message. It is displayed after each segment is restored as a request is sent to the Media Manager for the media that contains the next segment. This message is displayed even if the next segment resides on the same media.
No suitable drive or media for the job — Request held in queue: This entry is displayed as a Warning. It is displayed when the required piece of media is not available or it is in use. If the piece of media being requested is the current one, this message indicates a temporary condition and the restore resumes shortly.

Restoring Incremental Backups

The incremental restores build on each other. To restore an Incremental Backup, you must have all the backups from Level-0 through the last backup in the backup sequence that you want to restore.

Renaming or relocating data

When restoring a backup, you can rename the directories to create a copy of the data instead of overwriting of the existing versions. You can also relocate the data to a different volume. This procedure can be useful if the original volume is down or if you are dealing with limited bandwidth or capacity.

3
In the Restore Rename dialog box, configure the following option:
/<vserverName>/<volumeName>/<folderName>
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