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NetVault Plug-in for SnapMirror to Tape 11.1 - User Guide

Restoring data

•
Restoring a Standard Backup
•
Restoring Block Level Incremental Backups
•
Using other restore procedures
•
Mirroring process
•
Viewing media list

Restoring a Standard Backup

Prerequisites

Before initiating a restore, the target volume must be configured as restricted. On Clustered Data ONTAP 8.3, the target volume must be of type Data Protection (DP) and this volume must be in restricted state.

To change the volume status:
1
Start a Telnet session, and log in to the filer.
2
At the prompt, type:
vol restrict <target volume>

You can also change the volume status from the NetApp web interface. For more information, see the relevant NetApp documentation.

Restore procedure
1
In the Navigation pane, click Create Restore Job.
On the Create Restore Job — Choose Saveset page, the saveset table provides a list of available savesets.
The table shows the saveset name (Job Title and Saveset ID), creation date and time, saveset size, and saveset status. The saveset status is indicated using the following icons.
Icon
Description

Saveset is online (all segments are online).

Saveset is partially online (some segments are online).

Saveset is offline (all segments are offline).

The saveset list is sorted by creation date (newest to oldest). You can sort the list by one or more columns, as required. The arrowhead next to the column name indicates the sort order.
To filter the saveset list, you can use the following filter options.
Filter
Description

Client

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

1
To use this filter, click the Client box.
2
In the Choose Client dialog box, select the clients.
3
To close the dialog box, click OK.

Plugin Type

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

1
To use this filter, click the Plugin Type box.
2
In the list, select the plug-in.

Date

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

1
To use this filter, click the Date box.
2
In the list, select the option that you want to use.
The available options are Last 24 hours, Last Week, Last Month, Last 6 Months, Last Year, and Any.

Job

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

1
To use this filter, click the Job box.
2
In the Choose Job dialog box, select the jobs.
3
To close the dialog box, click OK.
2
Select the saveset that you want to use, and click Next.
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.
3
On the Create Selection Set page, select the volumes you want to restore.
4
Click Edit Plugin Options, and configure the following settings.
Table 3. Restore options for Plug‑in for SnapMirror to Tape
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.

Break Mirror on Exit

When a snapshot is restored to a volume, a SnapMirror Relationship is established for the volume and the volume is marked as read-only. After the restore job is completed successfully, you must break the relationship and mark the volume as writable.

To break the SnapMirror relationship:
•
Select the Break Mirror on Exit check box.
— or —
•
After the restore job is completed successfully, start a Telnet session, and log in to the filer on which the snapshot was restored. At the prompt, type:
snapmirror break <target volume>
5
Click Save to save the settings, and then click Next.
6
In Job Name, specify a name for the job.
Assign a descriptive name that lets you easily identify the job for monitoring its progress. The job name can contain alphanumeric and nonalphanumeric 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, verify that 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 Quest NetVault Backup Administrator’s Guide.
9
To submit the job for scheduling, click Submit.
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.
* 
IMPORTANT:  
•
Due to NetApp configurations, quotas are not restored when you recover a snapshot. You must set the quotas manually on the destination filer.
•
On NetApp filers running Data ONTAP 7.0 and later versions, you cannot restore data from Traditional Volumes to Flexible Volumes or from Flexible Volumes to Traditional Volumes.

Restoring Block Level Incremental Backups

This section includes the following topics:

•
Restoring Incremental Backups
•
Restoring Differential Backups

Restoring Incremental Backups

1
Before starting the restore procedure, place the destination volume in restricted mode.
For more information, see Prerequisites.
2
Restore the Full Backup.
For more information, see Restore procedure. When restoring the Full Backup, do not select the Break Mirror on Exit check box.
3
Restore each Incremental Backup in the backup sequence.
For more information, see Restore procedure. When restoring the Incremental Backups, do not select the Break Mirror on Exit check box
You must restore the Incremental Backups in the order in which they were created.
* 
IMPORTANT: When restoring the Full or Incremental Backups, if you select the Break Mirror on Exit check box or issue the snapmirror break statement, you cannot restore any additional Incremental Backups in the backup sequence.

A volume must be in a SnapMirror Relationship to restore the Incremental Backups. If you break the SnapMirror Relationship before restoring all Incremental Backups, restore the Full Backup again, and then restore the applicable Incremental Backups.

When a snapshot is restored to a volume, a SnapMirror Relationship is established for the volume and the volume is marked as read-only. After the restore job is completed successfully, you must break the relationship and mark the volume as writable.
4
To break the SnapMirror relationships, start a Telnet session, and log in to the filer on which the snapshot was restored.
5
At the prompt, type:
snapmirror break <target volume>
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