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NetVault Plug-in for NDMP 10.0.5 - Application Notes for NetApp ONTAP

Backing up data in C-mode

Starting with 10.0.5, NetVault Backup uses the CAB extension to perform backup and restore operations for cluster nodes running Data OnTAP 8.2.2 and later. The CAB extension enables the NDMP server to provide affinity information about volumes and tape devices to the backup application that support the CAB extension. NetVault Backup uses this affinity information to determine the data transfer path used during backup and restore operations. If a target volume and tape device are on same cluster node, a local backup or restore operation is performed; if they are on different cluster nodes, a three-way backup or restore operation is performed.
 
 
*NOTE: During an NDMP backup or restore using the CAB extension, if a fail-over occurs, the job continues without any interruption. After the fail-over, if the volume is moved to a different node, the data transfer path may change depending on the affinity information provided by NetApp.
To back up one or more volumes in C-mode
1
In the Navigation pane, click Create Backup Job.
— or —
In the Navigation pane, click Guided Configuration, and then on the NetVault Configuration Wizard page, click Create Backup Jobs.
2
In Job Name, specify a name for the job.
Assign a descriptive name that allows you to easily identify the job for monitoring its progress or restoring data. The job name can contain alphanumeric and non-alphanumeric characters, but it cannot contain non-Latin characters. There is no length restriction. However, a maximum of 40 characters is recommended on all platforms.
3
In the Selections list, select an existing Backup Selection Set, or complete the following steps to create a set.
a
Click Create New next to the Selections list.
b
On the NetVault Backup Selections page, open the NetVault Backup Server, and then open NDMP Client.
c
In the list of added servers, open the applicable filer to display the Volumes node.
d
Select the data that you want to back up.
•
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.
 
 
*NOTE: In NetApp ONTAP 8.x C-Mode, you cannot open the Volumes node to browse or select the contents. However, you can specify a single data path for a backup. For more information, see Backing up individual data paths in C-mode.
4
In the Plugin Options list, select an existing Backup Options Set, or complete the following steps to create a set.
 
 
*NOTE: This step is not applicable if a file or directory is the root selection item of a backup. The backup options are only available if you have selected a volume or sub-volume as the root item for a backup.
a
Click Create New next to the Plugin Options list.
b
Configure the following settings:
•
NDMP Backup Options: For more information about these options, see NDMP Backup Options
•
Sub Jobs: For more information about these options, see Sub Jobs.
c
Click Save, and in the Create New Set dialog box, type a name for the set. Click Save to close the dialog box.
5
Complete steps 5 and 6 in the section Backing up data in 7.x-7G and 7-mode.

Backing up individual data paths in C-mode

In NetApp ONTAP 8.x C-Mode, you cannot open the Volumes node to browse or select the contents. However, you can specify a single data path for a backup.
To back up an individual data path
1
In the Navigation pane, click Create Backup Job.
— or —
In the Navigation pane, click Guided Configuration, and then on the NetVault Configuration Wizard page, click Create Backup Jobs.
2
In Job Name, specify a name for the job.
Assign a descriptive name that allows you to easily identify the job for monitoring its progress or restoring data. The job name can contain alphanumeric and non-alphanumeric characters, but it cannot contain non-Latin characters. There is no length restriction. However, a maximum of 40 characters is recommended on all platforms.
3
Click Create New next to the Selections list.
4
On the NetVault Backup Selections page, open the NetVault Backup Server, and then open NDMP Client.
5
Select the applicable filer, and in the Actions list, click Enter Backup Path.
6
In the NDMP Backup Request dialog box, configure the following option:
•
Directory: Specify the full path to the item that you want to back up. You can include a single volume, qtree, directory, or snapshot. This option does not support individual files. If you specify a filename, backup fails.
Use the following format to specify the backup path:
/<vservername>/<volumename>/.snapshot/<snapshotname>
Example:
/vs1/vol2/.snapshot/daily.2014-06-16_0010
Consult the relevant NetApp ONTAP documentation for more information on snapshot names.
7
Set the Dump Level and the remaining backup options.
For more information, see NDMP Backup Options.
8
Click OK to save the settings.
9
Complete steps 5 and 6 in the section Backing up data in 7.x-7G and 7-mode.
 
 

Restoring data

•
Restoring data using the plug-in
•
Restoring Incremental Backups
•
Renaming or relocating data
•
Restoring data to an alternate filer
•
Using additional features available on the Choose Saveset page

Restoring data using the plug-in

To restore data using the plug-in
1
In the Navigation pane, click Create Restore Job.
2
In the saveset table, select the saveset that you want to use, and click Next.
The table displays the saveset name (Job Title and Saveset ID), creation date and time, and saveset size. Note the following:
•
The list is sorted alphabetically by saveset name. You can sort the list by a different column or reverse the sort order by clicking the column heading. The arrowhead next to the column name indicates the sort order.
•
You can use one or more filters to display specific savesets on this page. You can also search for a data item in savesets and view the media list for a saveset. For more information about the additional features, see Using additional features available on the Choose Saveset page.
•
When you select a saveset, the following details are displayed in the Saveset Information area: Job ID, Job Title, name of the NetVault Backup Server, name of the client from which the data was backed up, plug‑in used to create the saveset, saveset creation date and time, saveset retirement setting, whether Incremental Backup or not, whether Archive or not, and saveset size.
3
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.
 
 
*NOTE: 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.
4
Click Edit Plugin Options, and configure the following settings.
 
Table 1. Restore options
Option
Description
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 DAR mode from the following:
•
Use Direct Access Restore if Possible: Select this option to perform a direct access restore if the backup was direct and the mover and data server can complete a Direct Access Restore. If these conditions are not met, a non-direct access restore is performed.
•
Use Direct Access Restore by Recovering Individual Files: Select this option to restore a directory and its file contents. When you use this option, empty directories in the saveset are ignored.
You must select this option if any item was omitted during data selection; otherwise, the restore job fails.
•
Only Do Direct Access Restore: Select this option to force a Direct Access Restore. 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: Select this option to perform a standard non-Direct Access Restore.
Incremental Restore
Select this check box to recursively extract data and reconstruct the selected subtree to the state it was in at the time of backup.
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
Select this option to restore ACLs from the backed-up file. 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:  
•
When individual files are selected for a Direct Access Restore, their parent-level directory permissions are not restored.
•
When running a Direct Access Restore, NetVault Backup organizes the restore requests into groups of 1024 files at a time. When a restore job consists of more than 1024 total files, multiple restore requests are issued. Accordingly, multiple log entries are displayed for the job.
5
Click OK to save the settings, and then click Next.
6
In Job Name, specify a name for the job.
Assign a descriptive name that allows you to easily identify the job for monitoring its progress. The job name can contain alphanumeric and non-alphanumeric characters, but it cannot contain non-Latin characters. There is no length restriction. However, a maximum of 40 characters is recommended on all platforms
7
In the Target Client list, the client from which data was backed up is selected by default. Do not change this setting.
8
Select or create the Schedule Set, Restore Source Set, and Advanced Options Set. For more information about these sets, see the Dell NetVault Backup Administrator’s Guide.
9
Click Submit to submit the job for scheduling.
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 Dell NetVault Backup Administrator’s Guide.
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