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NetVault Plug-in for NDMP 10.0.5 - Application Notes for Hitachi NAS

Restoring Image Backups using the plug-in

To restore Image Backups
 
 
*IMPORTANT: All command-line references are illustrated as examples only. For more information, see the Hitachi NAS Support resources.
1
Unmount the target file system before submitting the restore job.
Example:
unmount <file system>
2
Prepare the target file system for full image recovery. This step deletes all data on the file system. In this mode, the file system cannot be accessed by network clients (CIFS/NFS).
Example:
Filesystem-prepare-for-ndmp-image-recovery --full --confirm <file system>
3
Mount the file system so that file system can be accessed for restore.
Example:
mount <file system>
4
Start the WebUI on the NetVault Backup Server, and in the Navigation pane, click Create Restore Job.
5
In the Navigation pane, click Create Restore Job.
6
In the saveset table, select the applicable item, and click Next.
7
On the Create Selection Set page, select the data that you want to restore. Click Next.
8
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
9
In the Target Client list, the client from which data was backed up is selected by default. Do not change this setting.
10
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.
11
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.
12
When the data recovery completes, unmount the file system.
Example:
unmount <file system>
13
Revert the file system to a working system. The file system is now accessible to all network clients (CIFS/NFS).
Example:
Filesystem-revert-after-ndmp-image-recovery <file system>
14
Mount the file system.
Example:
mount <file system>

Using additional features available on the Choose Saveset page

This section describes how to use the additional features available on the Create Restore Job — Choose Saveset page. These features are common to all NetVault Backup plug-ins.
Filtering the saveset list
By default, the saveset table on the Create Restore Job — Choose Saveset page lists all available savesets. You can use the following filters to display specific savesets on this page.
 
Table 2. Saveset filters
Filter
Description
Client
Displays savesets created for particular clients.
To use this filter
•
Click the Client box, and in the Choose Client dialog box, select the applicable clients. Click OK to close the dialog box.
The default selection is Any.
Plugin Type
Displays savesets created using a particular plug-in.
To use this filter
•
Click the Plugin Type box, and in the list, select the applicable plug-in.
The default selection is Any.
Date
Displays savesets created during a specified period.
To use this filter
•
Click the Date box, and 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.
The default selection is Any.
Job
Displays savesets created for particular job IDs.
To use this filter
•
Click the Job box, and in the Choose Job dialog box, select the applicable jobs. Click OK to close the dialog box.
The default selection is Any.
Searching for files in savesets
The Search option on the Create Restore Job — Choose Saveset page allows you to find specific files or data items without opening a saveset or browsing through its contents. You can use filenames or regular expressions to find the data items that you want to restore.
To search for data items in savesets
1
On the Create Restore Job — Choose Saveset page, click Search.
2
In the Search for files in savesets dialog box, configure the following options:
•
Search String: Type the search string.
•
Regular expression search: To use POSIX (Portable Operating System Interface for Unix) regular expressions in the Search String box, select this check box.
•
Case sensitive: To perform a case-sensitive search, select this check box.
3
Click Search.
On the Search Results page, you can view the savesets that contain the specified files or data items. Select the items you want to restore. You can only restore items from one saveset.
Viewing media list
To view media list for a saveset
1
On the Create Restore Job — Choose Saveset page, select the applicable saveset.
2
In the Saveset Information area, click Media List.
3
In the dialog box that appears, you can view the data and index segment details. For each data segment, you can view the media label, media group, offset, segment size, and media location. For index segments, you can view the media label, media group, and media location.
4
Click Close to close the dialog box.
 
 

Troubleshooting

•
Common errors

Common errors

The following is a list of some common errors and their solution.
 
Table 1. Troubleshooting
Description
Symptom
Solution
The NetVault Backup Service fails to start on a Windows-based NetVault Backup Server.
Check the Windows Event Viewer to see if it displays the following message:
PDT FATAL: lock file “postmaster.pid” already exists
 
NetVault Backup cannot start if the PostgreSQL database that is used to store the system data does not start.
To correct this issue, delete the “postmaster.pid” file from the location referenced in the log and restart the NetVault Backup Server. For more information, see https://support.quest.com/netvaultbackup/kb/122475.
After restarting the machine, the NetVault Backup Service sometimes fails to start on a Windows-based NetVault Backup Server.
Check the Windows Event Viewer to see if it displays the following message:
FATAL: could not create any TCP/IP sockets " for a PostgreSQL source
 
NetVault Backup cannot start if the PostgreSQL database that is used to store the system data does not start.
To correct this issue, start the Task Manager, and click Show processes from all users. You can see multiple instances of postgres32.exe running on the system. Select any one instance of this process, and click End Process to remove all instances of postgres32.exe. Then, start the NetVault Backup Service from the Configurator.
The NetVault Backup Service starts, and then stops immediately on a Linux-based machine.
No error messages are displayed.
This issue can occur if the Postgres service cannot resolve the host name localhost, and fails to start.
Check the /etc/hosts file, and if the file does not contain an entry for localhost, add the entry.
 
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