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NetVault Plug-in for SnapMirror to Tape 10.0.5 - User Guide

Restoring data

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Restoring a Standard Backup
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Restoring Block Level Incremental Backups
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Using other restore procedures
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Mirroring process
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Using additional features available on the Choose Saveset page

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:
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Start a Telnet session, and log on to the filer. 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
To restore a Standard Backup
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.
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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.
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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.
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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 volumes you want to restore.
4
Click Edit Plugin Options, and configure the following settings.
 
Table 1. 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
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Select the Break Mirror on Exit check box.
— or —
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After the restore job is completed successfully, start a Telnet session, and log on 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 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
 
 
*IMPORTANT:  
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Due to NetApp configurations, quotas are not restored when you recover a snapshot. You need to set the quotas manually on the destination filer.
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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:
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Restoring Incremental Backups
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Restoring Differential Backups

Restoring Incremental Backups

To restore data from an Incremental Backup sequence
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.
4
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:
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Start a Telnet session, and log on to the filer on which the snapshot was restored. At the prompt, type:
snapmirror break <target volume>
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