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NetVault Plug-in for NDMP 11.4.5 - Application Notes for Hitachi NAS

Device handling guidelines

To use both Dump and Image Backup methods, you must add the server in the Dump Mode and the Image Mode. This configuration poses a challenge since each server displays a separate and distinct iteration of any given devices attached to the environment. The general guidelines are to use the device path that is either used most frequently based on the backup type or the device path that best serves the data set size and infrastructure performance capacity.

Alternatively, you can use the D2D licensing to dynamically switch between the server and the backup methods.

Backing up data

About Backup Dump Levels

The Plug‑in for NDMP supports both Full and Incremental Backups. The backup type is determined by the Dump Level that can be set to Level 0 for a Full Backup or Levels 1 through 9 for Incremental Backups:

Level 0 or Full Backup: A Full Backup provides a backup of all the data in the selected path.
Level 1 through 9 or Incremental Backup: The Incremental Backups base themselves on the most recent lower‑level Incremental Backup, and include any data that has changed or is new since the last Full or Incremental Backup.

Backing up data using the Dump Backup method

In the Navigation pane, click Guided Configuration, and then on the NetVault Configuration Wizard page, click Create Backup Jobs.
In Job Name, specify a name for the job.
In the Selections list, select an existing Backup Selection Set, or complete the following steps to create a set.
Next to the Selections list, click Create New.
On the NetVault Backup Selections page, open the NetVault Backup Server, and then open NDMP Client.
To display the Volumes node, open the applicable filer in the list of added servers.
Back up all volumes: Select the Volumes node.
Back up individual volumes: Open the Volumes node, and select the volumes that you want to back up.
Click Save, and in the Create New Set dialog box, type a name for the set.
In the Plugin Options list, select an existing Backup Options Set, or complete the following steps to create a set.
Next to the Plugin Options list, click Create New.
Under NDMP Backup Options, configure the following settings.

Dump Level

Select the type of backup that you want to perform. For a Full Backup, type or select 0. For an Incremental Backup, type or select any level from 1 to 9, based on the previous dump level.

Update /etc/dumpdates

The file “/etc/dumpdates” keeps a record of the backup, including the backup name, backup level, and snapshot time.

Leave this check box selected if your backup strategy includes Incremental Backups. The information in this file is used to determine what data must be included in an Incremental Backup.

Save File Information

This option allows you to browse individual files and directories while selecting data during restore. You cannot restore individual files and directories if you clear this check box.

Quest recommends that you leave this check box selected.

File History Character Set

If the names of files or directories contain non-ASCII characters, specify the character set encoding to allow correct display of the names on the NetVault Backup WebUI. The plug-in supports UTF-8 and ISO8859 character sets.


Use this option to specify files and directories that you want to exclude from the backup. Type the complete file path, starting with a forward slash (“/”). If the full path is not provided, the plug-in excludes any item that matches the entry. To separate multiple items, use a comma.

You can use up to two wildcard characters per file. Wildcard characters can only be used at the first or the last place in the filename. For example, if you enter “/dir1/tmp*, *.o” in Exclude, the plug-in excludes the following items:

Files and directories starting with the letters “tmp” in the directory /dir1.

Filenames are case-sensitive for NFS shares and case-insensitive for CIFS shares.

Under Sub Jobs, configure the following settings.
Table 2. Sub Jobs

Number of Backups to Run in Parallel

Type or select the number of jobs that can run concurrently. The default value is zero. With the default setting, all jobs in parallel, limited only by the availability of drives, network bandwidth, and other resources.

To achieve the required result, set the same value for each job.

Delete Auto Generated Backup Jobs on Completion

The plug-in creates individual subjobs for each volume included in a backup. If this check box is not selected, all subjobs are listed on the Job Status page. This display can create confusion when you try to view the details of the parent job. To include only a single entry for the parent job, leave this check box selected.

Click Save, and in the Create New Set dialog box, type a name for the set.
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.
To save the job definition without scheduling it, click Save. You can view, edit, or run this job from the Manage Job Definitions page. This job is not displayed on the Job Status page until you submit it.
For more information about Job Status, View Logs, and Manage Job Definitions, see the Quest NetVault Backup Administrator’s Guide.
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