Quest NetVault Backup Plug-insupport-public.cfm.quest.com/3875f6ba-facd-4733-9bc2-6f6afb76b2ea… · • Quest NetVault Backup Plug-in for SnapMirror to Tape – At a Glance ... Full,

NTG-101-7.6.107-EN-01 12/12/12

Quest® NetVault® Backup Plug-infor SnapMirror to Tape

version 7.6.107

User’s GuideVersion: Product Number: NTG-101-7.6.107-EN-01

© 2012 Quest Software, Inc.ALL RIGHTS RESERVED.

This guide contains proprietary information protected by copyright. The software described in this guide is furnished under a software license or nondisclosure agreement. This software may be used or copied only in accordance with the terms of the applicable agreement. No part of this guide may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording for any purpose other than the purchaser's personal use without the written permission of Quest Software, Inc.

The information in this document is provided in connection with Quest products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Quest products. EXCEPT AS SET FORTH IN QUEST'S TERMS AND CONDITIONS AS SPECIFIED IN THE LICENSE AGREEMENT FOR THIS PRODUCT, QUEST ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT SHALL QUEST BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS INTERRUPTION OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF QUEST HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Quest makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Quest does not make any commitment to update the information contained in this document.

If you have any questions regarding your potential use of this material, contact:

Quest Software World HeadquartersLEGAL Dept5 Polaris WayAliso Viejo, CA 92656email: [email protected]

Refer to our Web site (www.quest.com) for regional and international office information.

Patents

This product is protected by protected by U.S. Patents # 7,814,260; 7,913,043; 7,979,650; 8,086,782; 8,145,864; 8,171,247; 8,255,654; and 8,271,755. Protected by Japanese, E.U., French and UK patents 1615131 and 05250687.0, and German patent DE602004002858. Additional patents pending.

Trademarks

Quest, Quest Software, the Quest Software logo, Simplicity at Work, FlashRestore, GigaOS, and NetVault are trademarks and registered trademarks of Quest Software, Inc., and its subsidiaries. For a complete list of Quest Software's trademarks, please see http://www.quest.com/legal/trademarks.aspx. Other trademarks and registered trademarks are property of their respective owners.

Chapter 1: Introducing Quest NetVault Backup Plug-in for SnapMirror to Tape 5

• Quest NetVault Backup Plug-in for SnapMirror to Tape – At a Glance ........................ 5• Feature Summary ............................................................................................................. 5• SM2T Backups and NDMP Dump Backups .................................................................... 6• Target Audience ................................................................................................................ 6• Recommended Additional Reading ................................................................................ 6• About Quest Software ...................................................................................................... 7

- Contacting Quest Software .............................................................................................................. 7- Quest Support .................................................................................................................................. 7

Chapter 2: Installing Plug-in for SM2T 9

• Deploying Plug-in for SM2T ............................................................................................ 9- Deployment Using NVBU Server-Attached Device .......................................................................... 9- Deployment Using Filer-Attached Device ...................................................................................... 10

• Prerequisites ................................................................................................................... 10• Installing Plug-in for SM2T ............................................................................................ 11• Upgrading Plug-in for SM2T .......................................................................................... 11• Removing Plug-in for SM2T ........................................................................................... 11

Chapter 3: Configuring Plug-in for SM2T 13

• Prerequisites ................................................................................................................... 13• Adding a NetApp Filer to the Plug-in for SM2T ............................................................ 13

- Reconfiguring an Added Server ..................................................................................................... 14- Removing an SM2T Server ............................................................................................................ 15

• Configuring Login Details .............................................................................................. 15• Configuring Default Settings ......................................................................................... 16• Configuring Media Block Size for Target Drives .......................................................... 17

Table of Contents

Table of Contents4

Chapter 4: Backing up Data with Plug-in for SM2T 19

• Available Backup Methods .............................................................................................19- Available Block Level Incremental Backup Types ......................................................................... 20

• Performing a Standard Backup ......................................................................................20- Selecting Data for a Backup .......................................................................................................... 20- Setting Backup Options ................................................................................................................. 22- Finalizing and Submitting a Job ..................................................................................................... 24

• Performing BLI Backups ................................................................................................25- Additional Notes ............................................................................................................................. 27

• Best Practices ..................................................................................................................28

Chapter 5: Restoring Data with Plug-in for SM2T 29

• Restoring a Standard Backup ........................................................................................29- Prerequisites .................................................................................................................................. 29- Selecting Data for a Restore .......................................................................................................... 30- Setting Restore Options ................................................................................................................. 32- Finalizing and Submitting a Job ..................................................................................................... 32

• Restoring Block Level Incremental Backups ................................................................33- Restoring Incremental Backups ..................................................................................................... 33- Restoring Differential Backups ....................................................................................................... 34

• Advanced Restore Procedures ......................................................................................35- Renaming a Volume During Restore .............................................................................................35- Restoring Data to an Alternate NetApp Filer .................................................................................. 36

• Mirroring Process ............................................................................................................37• Troubleshooting ..............................................................................................................37

Quest NetVault Backup Plug-infor SnapMirror to Tape User’s Guide

5

Chapter 1:

INTRODUCING QUESTNETVAULT BACKUP PLUG-IN

FOR SNAPMIRROR TO TAPEQuest NetVault Backup Plug-in for SnapMirror to Tape – At a GlanceFeature SummarySM2T Backups and NDMP Dump BackupsTarget AudienceRecommended Additional ReadingAbout Quest Software

Contacting Quest SoftwareQuest Support

1.1.0 Quest NetVault Backup Plug-in for SnapMirror to Tape – At a GlanceQuest NetVault Backup Plug-in for SnapMirror to Tape (Plug-in for SnapMirror to Tape or Plug-in for SM2T) provides block-level backups and improved disaster recovery support for the data stored on NetApp Filers. Working in conjunction with NetApp's SnapMirror technology, the plug-in allows you to back up selected volumes or snapshots to tape devices for off-site storage. An intuitive, easy-to-use GUI gives you a single, centralized console to configure backup and restore policies for all your NetApp Filers. Support for Full, Incremental, and Differential Backups, gives you the flexibility to implement a preferred backup strategy on Data ONTAP 8.1.1 and later releases.

1.2.0 Feature SummaryBack up selected volumes or snapshotsFull, Incremental and Differential Backups on Data ONTAP 8.1.1 and laterMove mirrors to tape and save disk space on NetApp FilersDisk-based backups to Quest NetVault SmartDisk (NVSD), including the ability to deduplicate data

Chapter 1Introducing Quest NetVault Backup Plug-in for SnapMirror to Tape

6

Centralized management of SnapMirror schedules from Quest NetVault Backup (NetVault Backup or NVBU) ConsolePoint-in-time volume recovery from mirror images stored on tapeRelocate mirrored data to alternate NetApp FilersIntegrated with NVBU's NDMP related functions

1.3.0 SM2T Backups and NDMP Dump BackupsThe SM2T Backups are faster than the NDMP Dump Backups. The other differences between these two types of backups are described in the following table:

1.4.0 Target AudienceThis guide is intended for Backup Administrators and other technical personnel who are responsible for designing and implementing a backup strategy for NAS Filers. A good understanding of the NAS, NDMP and the operating systems under which the NetVault Backup Server and Clients are running is assumed.

1.5.0 Recommended Additional ReadingNVBU Documentation

Quest NetVault Backup Plug-in for NDMP User’s Guide – This guide provides information on the supported Data Transfer Models, and describes the procedures for installing and configuring the Quest NetVault Backup Plug-in for NDMP.

Snap Mirror to Tape Backup NDMP Dump BackupBacks up blocks of data Backs up files and directories

Supports Level 0, Incremental, and Differential BackupsNote: To use Block Level Incremental (BLI) Backups, the requirements are as follows:

NVBU v8.6.1 or laterPlug-in for SM2T v7.6 or laterData ONTAP 8.1.1 or later

The versions older than those listed above only support Level 0 or Full Backups.

Supports Level 0, Incremental, and Differential Backups

Does not provide file-level restores Provides file-level restores

Preserves native deduplication while backing up and restoring data

Does not preserve native deduplication while backing up data


7

Quest NetVault Backup Plug-in for NDMP Application Notes – The application notes provide filer-specific information.Quest NetVault Backup Installation Guide – This guide provides complete details on installing the NetVault Backup Server and Client software. Quest NetVault Backup Administrator’s Guide – This guide describes how to use NVBU and provides comprehensive information on all NVBU features and functionality.

You can download these guides from the Quest website at the following address:

https://support.quest.com/Search/SearchDownloads.aspxNAS Device Documentation

Administrator’s Guide for your NAS Device

1.6.0 About Quest SoftwareEstablished in 1987, Quest Software (Nasdaq: QSFT) provides simple and innovative IT management solutions that enable more than 100,000 global customers to save time and money across physical and virtual environments. Quest products solve complex IT challenges ranging from database management, data protection, identity and access management, monitoring, user workspace management to Windows management. For more information, visit www.quest.com.

1.6.1 Contacting Quest Software

For regional and international office information, refer to the web site.

1.6.2 Quest SupportQuest Support is available to customers who have a trial version of a Quest product or who have purchased a Quest product and have a valid maintenance contract. Quest Support provides unlimited 24x7 access to our Support Portal at www.quest.com/support.

From our Support Portal, you can do the following:

Retrieve thousands of solutions from our Knowledge Base

Email: [email protected]

Mail: Quest Software, Inc.World Headquarters5 Polaris WayAliso Viejo, CA 92656USA

Web site: www.quest.com

http://www.quest.com/database-management/

http://www.quest.com/data-protection/

http://www.quest.com/identity-management/

http://www.quest.com/foglight/

http://www.quest.com/workspace/

http://www.quest.com/workspace/

http://www.quest.com/windows-management/

Chapter 1Introducing Quest NetVault Backup Plug-in for SnapMirror to Tape

8

Download the latest releases and service packsCreate, update and review Support cases

View the Global Support Guide for a detailed explanation of support programs, online services, contact information, policies and procedures.

The guide is available at www.quest.com/support.

This guide is available in English only.


9

Chapter 2:

INSTALLING PLUG-IN FORSM2T

Deploying Plug-in for SM2TDeployment Using NVBU Server-Attached DeviceDeployment Using Filer-Attached Device

PrerequisitesInstalling Plug-in for SM2TUpgrading Plug-in for SM2TRemoving Plug-in for SM2T

2.1.0 Deploying Plug-in for SM2T The Plug-in for SM2T supports the following deployment types.

2.1.1 Deployment Using NVBU Server-Attached DeviceFigure 2-1:

Plug-in forSM2T

Deploymentusing NVBU

Server-Attached

Device

Data PathD2D2TD2T

Plug-in for SnapMirror to Tape

NetVault Backup Server

Chapter 2Installing Plug-in for SM2T

10

2.1.2 Deployment Using Filer-Attached DeviceFigure 2-2:

Plug-in forSM2T

Deploymentusing Filer-

AttachedDevice

2.2.0 PrerequisitesBefore you start the installation procedure, make sure that the following requirements are met:

Install Quest NetVault Backup Plug-in for NDMP (Plug-in for NDMP) – Install the Plug-in for NDMP on the NVBU Server if you are using a Filer-to-Filer setup and intend to use the backup device connected to another filer.Install and Configure NetApp SnapMirror – Ensure that the NetApp SnapMirror software is installed and properly configured on all applicable NetApp Filers.Configure Language and Locale Settings for NVBU – Ensure that the language and locale settings have been properly configured for the NVBU Console.

Data Path

Plug-in for SnapMirror to Tape

Data Path

NetVault Backup Server

Plug-in for NDMP


11

2.3.0 Installing Plug-in for SM2TTo install the Plug-in for SM2T

1. Start the NVBU Console on the NVBU Server, and open the NVBU Client Management window. To open this window:

Click Client Management on the toolbar or Large Buttons panel.– or – On the Administration menu, click Client Management.

Important: The Plug-in for SM2T must be installed on the NVBU Server.

2. In the Clients list, right-click the NVBU Server, and select Install Software.3. In the browse window, navigate to the location of the .npk installation file for

the Plug-in for SM2T (on the installation CD or the directory to which the file was downloaded from Quest Software's web site). Depending on the operating system, the file path for this software may vary on the installation CD.

4. Select the file named smt-x-x-x-x.npk (where x-x-x-x represents the build and version numbers), and click Open to begin the plug-in installation. On completion, a message will be displayed. Click OK to close this dialog.

2.4.0 Upgrading Plug-in for SM2TThe Plug-in for SM2T allows you to perform an upgrade installation without removing the existing installation of the plug-in. To upgrade the plug-in, use the procedure described in the section Installing Plug-in for SM2T on page 11.

Important: After an upgrade, you must browse the plug-in to update the configuration values. On Linux x86-64, you must restart the NVBU Service after an upgrade.

2.5.0 Removing Plug-in for SM2TTo remove the Plug-in for SM2T

1. Start the NVBU Console on the NVBU Server, and open the NVBU Client Management window.

2. In the Clients list, right-click the NVBU Server, and select Remove Software.3. In the list of plug-ins, select NDMP SnapMirror to Tape Plugin, and click

Remove.4. In the confirmation dialog, click OK.

Chapter 2Installing Plug-in for SM2T

12


13

Chapter 3:

CONFIGURING PLUG-IN FORSM2T

PrerequisitesAdding a NetApp Filer to the Plug-in for SM2T

Reconfiguring an Added ServerRemoving an SM2T Server

Configuring Login DetailsConfiguring Default SettingsConfiguring Media Block Size for Target Drives

3.1.0 PrerequisitesBefore you start the configuration procedure, make sure that the following requirements are met:

Connect the Backup Devices – Ensure that the backup device is properly connected to the NVBU Server, SmartClient, or NetApp Filer depending on the type of Data Transfer Model that is in use.Add the NetApp Filer – Add the NetApp Filer as an NDMP Server to the Plug-in for NDMP. For details on adding an NDMP Server, refer to the Quest NetVault Backup Plug-in for NDMP User's Guide.

In a Filer-to-Filer Data Transfer Model, add both the target filer and the filer to which the backup device is connected to as NDMP Servers.

Add the Backup Devices – Add the backup device to the NVBU Server if the device is connected to a filer or a SmartClient. For adding devices to the NVBU Server, refer to the Quest NetVault Backup Administrator’s Guide.

3.2.0 Adding a NetApp Filer to the Plug-in for SM2TBefore you start using the Plug-in for SM2T for backups and restores, complete the following steps to add the target NetApp Filer and configure login details.

1. Start the NVBU Console on the NVBU Server, and open the NVBU Backup window. To open this window:

Click Backup on the toolbar or Large Buttons panel.– or –

Chapter 3Configuring Plug-in for SM2T

14

On the Operations menu, click Backup.2. On the Selections tab, double-click the NVBU Server. Alternatively, right-

click this node, and select Open.3. In the list of plug-ins, right-click NDMP SnapMirror to Tape, and select Add

Server. When adding the first filer, you can also use the following methods to open the NDMP Server window:

Double-click NDMP SnapMirror to TapeRight-click NDMP SnapMirror to Tape, and select Open

4. In the NDMP Server window, configure the following parameters:Figure 3-1:

NDMP Serverwindow

Name – Enter a unique name for the NetApp Filer. It is recommended that you assign the actual name of the filer to easily identify it the NVBU environment.Address(es) – Enter the IP address of the filer. To specify multiple addresses, separate them using a comma.Port – The filer is configured to listen on port number 10000, which is the default NDMP port. Unless otherwise required, do not change listener port for the filer. Account – Enter a user name that can be used to log on to the filer. The user must have necessary privileges to perform NDMP backups and restores.Password – Enter the password for the configured user account.

5. Click OK to locate and add the Filer.

3.2.1 Reconfiguring an Added ServerTo reconfigure the parameters for an added SM2T Server

1. Open the NVBU Backup window. 2. On the Selections tab, double-click the NVBU Server. Alternatively, right-

click this node, and select Open.3. In the list of plug-ins, right-click NDMP SnapMirror to Tape, and select

Open.


15

4. Right-click the applicable filer, and select Edit Server.5. In the Edit Server window, modify the required parameters. For details, refer

to Adding a NetApp Filer to the Plug-in for SM2T on page 13.Note the following:

You cannot change the SM2T Server name.To change the password, select the New Password check box, and enter the new password.

Note: To update only the login information, refer to Configuring Login Details on page 15.

6. Click OK to save the changes.

3.2.2 Removing an SM2T ServerTo remove an added SM2T Server


click this node, and select Open.3. In the list of plug-ins, right-click NDMP SnapMirror to Tape, and select

Open.4. Right-click the NetApp Filer that you want to remove, and select Remove

Server.5. In the confirmation dialog, click OK.

3.3.0 Configuring Login DetailsThe login information is used to automatically connect to the filer for backups and restores. Saving the login information eliminates the need to enter the user name and password each time a connection to the filer is required.

To configure the login details for an NDMP Server


click and select Open.3. In the list of plug-ins, right-click NDMP SnapMirror to Tape, and select

Open.4. Right-click the target filer, and select Set Account.5. In the NetVault Account window, configure the following parameters:


16
Figure 3-2:
NetVaultAccountwindow

Account – Enter a user account. The configured user account must have the necessary privileges to perform NDMP backups and restores.New Password – To change the password, select the New Password check box, and enter the new password for the configured user.

6. Click OK to save the login details.

3.4.0 Configuring Default SettingsTo configure the default settings for the Plug-in for SM2T, perform the following steps:

1. Open the configuration window as described below.a. Using NVBU Configurator

1. Start the NVBU Configurator.2. Click the Plugin Options tab, and then click the SMTT Backup

Configuration subtab.b. Using Remote Configurator

1. Open the NVBU Client Management window. 2. In the Clients list, right-click the NVBU Server, and select Configure.3. On the Remote Configurator, click the Plugin Options tab, and then

click the SMTT Backup Configuration subtab.c. Using NVBU Console

1. Open the NVBU Backup window.2. On the Selections tab, open the NVBU Server node.3. Right-click NDMP Client, and select Configure.

2. Configure the following parameters:


17

Figure 3-3:Configure

window

BLI Snapshot Creation Timeout – The amount of time the plug-in will wait for snapshot generation for BLI backups. The timeout value is specified in number of seconds. The default value for this parameter is 600 seconds.You can increase the timeout value while creating a snapshot of a large volume or when a filer requires an excessive amount of time to generate a snapshot.BLI Incremental Backup Can Delete Previous Differential Snapshot – When you perform an Incremental Backup, the plug-in will delete the snapshot created for the previous Incremental or Differential Backup. You can use this option to stop the plug-in from deleting a snapshot created for a Differential Backup if your backup strategy requires to use this snapshot as a base for a subsequent backup.Snapshot Backup Selection Cannot be Used with Create Snapshot Option – By default, if you select the Create New Snapshot check box after selecting a snapshot on the Selections tab, the backup job will fail with a message in the NVBU Logs. If you clear this check box, the plug-in will still generate a log message, but will not fail the job.

3. Click OK to save the settings.

3.5.0 Configuring Media Block Size for Target DrivesThe media block size is generally set to 240K on the filers. However, you can override this default value and configure the filer and plug-in to use a block size of 256K. To use a block size of 256K, you require the Plug-in for SM2T v7.2.101 or later. For ONTAP requirements, refer to the NetVault Backup Supported NAS and NDMP Compatibility Guide.

To configure the preferred media block size, use the following steps:

1. Set the DATA_BLOCK_SIZE variable on the filer. Generally, this variable is set to 240K. You can set it to any value you want, but in most cases, the filer will use 240K.


18

2. Set the same block size for the target drives. To do this:a. Start the NVBU Console and open the NVBU Device Management

window.b. On the Devices tab, right-click the target drive, and select Configure.c. In the Edit Drive window, click the Configuration tab.d. Configure the following parameter:

Media Block Size – Enter or select 240K or 256K depending on the value set for the DATA_BLOCK_SIZE variable. The block size on the filer and the tape device must be the same. The new block size will only apply to blank tapes or tapes that are relabeled.

3. To use a media block size of 256K, complete the following additional steps:a. Open the .../netvault/config/ndmpsmtversions.cfg file in a text editor.b. Set the Filer Block Size Preferred parameter to FALSE. The default value

for this parameter is TRUE:Filer Block Size Preferred=FALSE

c. Restart the NVBU Service.Notes

A block size of 256K or 240K may be too large for some operating systems to handle. For complete details on block size capacity, refer to the relevant operating system documentation.When duplicating the Plug-in for SM2T backups, ensure that the target drive and media used for duplication are configured to use a block size of 256K or 240K.If the target tape device is not locally attached to the NetApp Filer, ensure that the NVBU Server or SmartClient to which the device is attached to supports a block size of 256K or 240K.

On Linux/UNIX, it may be necessary to increase the amount of shared memory, typically the shmmax setting.On Windows, it is necessary to increase the MaximumSGList setting for the tape device. For details, refer to the relevant operating system and SCSI card documentation.


19

Chapter 4:

BACKING UP DATA WITHPLUG-IN FOR SM2T

Available Backup MethodsAvailable Block Level Incremental Backup Types

Performing a Standard BackupSelecting Data for a BackupConfiguring Sub-Job OptionsFinalizing and Submitting a Job

Performing BLI BackupsBest Practices

4.1.0 Available Backup MethodsThe Plug-in for SM2T supports the following backup methods:

Standard Backup Method – The Standard Backup method performs a Full or Level 0 backup of the selected volumes. It is the only backup method available for backing up full volumes on Data ONTAP versions prior to 8.1.1. The plug-in automatically selects the Standard Backup method to perform backup jobs created with plug-in versions older than v7.6.x.

Note: The Delete Snapshot on Exit check-box continues to be available for the Standard Backup Method, which lets you delete the snapshots of full volumes after a backup.

Block Level Incremental (BLI) Backup Method – This BLI Backup method can be used to perform Full, Incremental, or Differential Backups of the selected volumes. It uses snapshots to perform backups. A Full Backup initializes a backup context against which the plug-in performs Incremental and Differential Backups of the selected volumes.The BLI Backup Method is only available with v7.6.x and later versions of the Plug-in for SM2T. To implement a BLI backup strategy, you must use a Selection Set.

Note: The BLI Backups generated using the Plug-in for SM2T cannot be consolidated using the Quest NetVault Backup Plug-in for Consolidation (Plug-in for Consolidation).

Chapter 4Backing up Data with Plug-in for SM2T

20

4.1.1 Available Block Level Incremental Backup TypesThe BLI backup method supports the following backup types:

Full – A Full Backup backs up the entire volume. It serves as the base for the subsequent Incremental and Differential Backups.Incremental – An Incremental Backup backs up the changes in a volume since the last Full, Differential, or Incremental Backup. Incremental Backups consume minimum storage space and are quicker to perform. However, data recovery takes longer and may require the plug-in to access several savesets depending on the number of Incremental savesets that must be restored.Differential – A Differential Backup backs up the changes in a volume since the last Full Backup. Differential Backups speed up recovery since the plug-in is only required to restore two savesets. However, they consume more storage space and take longer than the Incremental Backups. Differential Backups duplicate the data backed up by previous Incremental or Differential Backups.

4.2.0 Performing a Standard BackupThe procedure for performing a Standard Backup of the selected volumes or snapshots includes the following steps:

Selecting Data for a BackupConfiguring Sub-Job OptionsFinalizing and Submitting a Job

4.2.1 Selecting Data for a BackupTo select data for a backup

1. Start the NVBU Console on the NVBU Server, and open the NVBU Backup window. To open this window:

Click Backup on the toolbar or Large Buttons panel.– or –On the Operations menu, click Backup.

2. On the Selections tab, open the NVBU Server node. To open a node on the Selections tab:

Double-click the node– or –Right-click the node, and select Open

3. In the list of plug-ins, open NDMP SnapMirror to Tape.


21

4. In the list of added SM2T Servers, open the target filer to display the following nodes:

VolumesSnapshots

Figure 4-1:Available

volumes listedon the

Selections tabof the NVBU

Backupwindow

5. Select the required data:Volumes

Include All Volumes – Select the Volumes node.Include Individual Volumes – Open the Volumes node, and select one or more volumes.

Snapshots – To back up the snapshots residing on the filer volumes:


22
Figure 4-2:
Availablesnapshots

listed on theSelections tab

of the NVBUBackupwindow

Open the Snapshots node to list all volumes within the filer.Open the target volume to list all directories for which snapshots have been created.Open the target directory, and select the snapshot that you want to back up. You can only select a single snapshot.

4.2.2 Setting Backup OptionsThis step involves the following tasks:

Selecting the Backup MethodConfiguring Standard OptionsConfiguring Sub-Job Options

Note: The Backup Options tab will not include any BLI options if the filer to which the plug-in is connected to does not support the BLI backup method.


23

Figure 4-3:Backup

Options tab forfilers that

support BLI

Figure 4-4:Backup

Options tab forfilers that donot support

BLI

4.2.2.a Selecting the Backup MethodClick the Backup Options tab, and configure the following parameter:

Backup Method – Under Backup Method, select Standard. This will create a Full or Level 0 Backup of the selected volumes. For details on the Standard Backup Method, refer to Available Backup Methods on page 19.This step is not applicable if your filer does not support the BLI backup method. For such filers, the plug-in will automatically use the Standard Backup Method.

Note: The snapshots of full volumes generated for a Standard Backup cannot be used to perform BLI Backups.


24

4.2.2.b Configuring Standard OptionsUnder Standard Options (or NDMP Backup Options), configure the following parameter:

Delete Snapshot on Exit – Select this check box to delete the snapshots generated by the Plug-in for SM2T after the backup completes.This option is only applicable to the Standard Backup method.

4.2.2.c Configuring Sub-Job OptionsUnder Sub Jobs, configure the following parameters:

Number of Backups to Run in Parallel – Enter or select the number of jobs that can be run concurrently. By default, this parameter is set to zero. With this value, all the jobs will be run in parallel, limited only by the availability of drives, network bandwidth and other resources. To achieve the desired result, you must set the same value for each job.Delete Auto Generated Backup Jobs on Completion – The Plug-in for SM2T creates individual sub-jobs for each qtree and volume included in a backup. For example, if a volume contains 15 qtrees and the Backup Sub-Volumes Individually option is selected, the plug-in creates16 sub-jobs for a single job. By default, each sub-job is included in the NVBU Jobs window, which may create confusion when you try to access the corresponding entry in this window. To avoid this and include only a single entry for the parent job, select the Delete Auto Generated Backup Jobs on Completion check box.

4.2.3 Finalizing and Submitting a JobTo finalize and submit a backup job

1. Click the Schedule, Target and Advanced Options tabs, and configure the required options. These options are common to all NVBU Plug-ins. For details on configuring these options, refer to the Quest NetVault Backup Administrator’s Guide.

2. In Job Title, enter a suitable title for the job. Specify a detailed title that allows you to easily identify the job for monitoring its progress or restoring data.

3. Click Submit on the toolbar. Alternatively, on the Accept menu, click Submit Backup. You can monitor the job progress from the NVBU Jobs window, and view the logs from the NVBU Logs window. For details on these functions, refer to the Quest NetVault Backup Administrator’s Guide.


25

4.3.0 Performing BLI BackupsThe BLI Backup Method uses snapshots to perform Full, Incremental, and Differential Backups of the selected volumes. You can either create a new snapshot with the Plug-in for SM2T or use an existing snapshot to perform these backups.

Creating New Snapshots with the Plug-in for SM2T – The Plug-in for SM2T automatically creates a new snapshot for Full Backups, which is used as a base for the Incremental and Differential Backups. To create snapshots for Incremental and Differential Backups, you must select the “Create New Snapshot” option.The snapshots are named as follows:snapshot_for_smtape.x-x-x-x.n

where “x-x-x-x” represents a hexadecimal number and “n” represents the snapshot sequence number (0 for Full Backup, 1 for Incremental Backup 1, 2 for Incremental Backup 2, and so on).For example,snapshot_for_smtape.5574d877-cfa3-11e1-9449-123478563412.0

snapshot_for_smtape.5574d877-cfa3-11e1-9449-123478563412.1

snapshot_for_smtape.5574d877-cfa3-11e1-9449-123478563412.2

Using Existing Snapshots – The Plug-in for SM2T can also use existing snapshots for BLI Backups. The snapshots must be named as follows:snapshot_for_smtape.<any string>.n

where “n” represents the snapshot sequence number (0 for Full Backup, 1 for Incremental Backup 1, 2, and so on).For example, snapshot_for_smtape.Vol1.0

snapshot_for_smtape.Vol1.1

snapshot_for_smtape.Vol1.2

For backups using the existing snapshots, make sure that you do not select the “Create New Snapshot” option.

To perform BLI Backups, use the following steps:

1. On the NVBU Server, open the NVBU Backup window, and select the required data. For details, refer to Selecting Data for a Backup on page 20.


26

2. To implement a backup strategy that involves Incremental or Differential Backups, save the selected data into a Selection Set. Selection Sets are essential for Incremental and Differential Backups. You must create the selection set during a Full Backup, and use it for Full, Incremental, and Differential Backups. The backup job will report an error if you do not use a Selection Set for Incremental or Differential Backups. For details on creating Selection Sets, refer to the Quest NetVault Backup Administrator’s Guide.

3. Click the Backup Options tab, and configure the following parameters:Backup Method – Under Backup Method, select Block Level Incremental. For details on the BLI Backup Method, refer to Available Backup Methods on page 19.

Figure 4-5:Backup

Options for theBLI Backup

Method

BLI Backup Type – Under BLI Backup Type, select one of the following:FullIncrementalDifferential

For details on the BLI Backup Types, refer to Available Backup Methods on page 19.BLI Options – Under BLI Options, configure the following parameters:

Important: For backups that use the existing snapshots, do not select BLI Options.

Create New Snapshot – To create a new snapshot for the backup, select this check box. This parameter is only applicable to Incremental and Differential Backups. The filer automatically generates an SMTape snapshot for a Full Backup. Therefore, the Create New Snapshot check box remains grayed-out for a Full Backup.


27

Delete Previous Snapshot – To delete any snapshots created for the previous Incremental or Differential Backups, select this check box. It will not delete the snapshot created for the current backup. This option is not applicable to snapshots created for Full Backups.

Sub Jobs – Under Sub Jobs, configure the following parameters:Number of Jobs to Run in ParallelDelete Auto Generated Backup Jobs on Completion

For details, refer to Configuring Sub-Job Options on page 24.4. Complete and submit the job. For details, refer to Finalizing and Submitting a

Job on page 24.

4.3.1 Additional NotesNote the following:

For BLI Backups, the snapshots must be numbered sequentially whether they are created using the Plug-in for SM2T or any other application. If a snapshot already exists on the filer, the backup will fail with the following message:Snapshot '%s' is unexpectedly already present. The backup cannot occur until this snapshot has been removed to allow the job to create a new snapshot of the same name.

When you select the Delete Previous Snapshot check box, the plug-in will retain the snapshot for that backup and the base Full Backup. It will delete all other snapshots. For example,

Full Backup of SetA – The Create New Snapshot check box is grayed-out and the Delete Previous Snapshot check box is cleared.Incremental Backup 1 of SetA – The Create New Snapshot and Delete Previous Snapshot check boxes are selected.Incremental Backup 2 of SetA – The Create New Snapshot and Delete Previous Snapshot check boxes are selected.

In this case, the .0 Full and.2 Incremental snapshots will be retained on the filer.For backups that use the existing snapshots, do not select the BLI Options. For example,

Full Backup of SetB – The Create New Snapshot check box is grayed-out and the Delete Previous Snapshot check box is cleared.Incremental Backup 1 of SetB – The Create New Snapshot and Delete Previous Snapshot check boxes are cleared.Incremental Backup 2 of SetB – The Create New Snapshot and Delete Previous Snapshot check boxes are cleared.


28

In this case, the .0 Full, and the .1 and .2 Incremental snapshots will be retained on the filer. These snapshots must be deleted manually. The plug-in will not delete them.

4.4.0 Best PracticesAllocate specific media groups for the Plug-in for SM2T backups. It is strongly recommended that you do not mix the backup savesets created with the Plug-in for SM2T with the backup savesets created using other NVBU Plug-ins.


29

Chapter 5:

RESTORING DATA WITHPLUG-IN FOR SM2T

Restoring a Standard BackupPrerequisitesSelecting Data for a Restore

Additional Features Available on the Selections TabFinalizing and Submitting a Job

Restoring Block Level Incremental BackupsRestoring Incremental BackupsRestoring Differential Backups

Advanced Restore ProceduresRenaming a Volume During RestoreRestoring Data to an Alternate NetApp Filer

PrerequisitesRestore Procedure

Mirroring ProcessTroubleshooting

5.1.0 Restoring a Standard BackupThe procedure for restoring data from a Standard Backup includes the following steps:

PrerequisitesSelecting Data for a RestoreSetting Restore OptionsFinalizing and Submitting a Job

5.1.1 PrerequisitesBefore initiating a restore, place the volume(s) in restricted mode. You can do this using NetApp’s web interface or the command line interface. For instructions on how to restrict a volume from the web interface, consult the relevant NetApp documentation. To do this from the command line, use the following steps:

Chapter 5Restoring Data with Plug-in for SM2T

30

1. Start a Telnet session, and log on to the filer.2. At the prompt, type:

vol restrict <volume to be restricted>

5.1.2 Selecting Data for a RestoreTo select data for a restore

1. Start the NVBU Console on the NVBU Server, and open the NVBU Restore window. To open this window:

Click Restore on the toolbar or Large Buttons panel.– or –On the Operations menu, click Restore.

2. On the Selections tab, open the NVBU Server node. To open a node on the Selections tab:

Double-click the node– or – Right-click the node, and select Open

3. In the list of plug-ins, open NDMP SnapMirror to Tape to list all the savesets created with this plug-in.

4. Open the applicable saveset, and select the required volumes or snapshot.Figure 5-1:

Volumebackup

selected for arestore


31

Figure 5-2:Snapshot

backupselected for a

restore

5.1.2.a Additional Features Available on the Selections TabThis section provides a brief description of the additional features present on the Selections tab of the NVBU Restore window. These features are common to all NVBU Plug-ins. For details on their use, refer to the Quest NetVault Backup Administrator’s Guide.

Sorting the Savesets – To sort the savesets listed on the Selections tab, select one of the following methods in the Selection Method list:

Plugin – This is the default method. The savesets are ordered according to the plug-in used to generate them.Backup Set – To sort the savesets by the Selection Set used for the backup, select Backup Set in the Selection Method list.Job – To sort the savesets by the Job Title, select Job in the Selection Method list.

Filtering the Savesets – To filter the savesets displayed on the Selections tab, configure the following parameters under Filter Options:

By Date Range – Select the By Date Range check box, and enter or select the From and To dates in the boxes provided to list the savesets generated during a given period.Show On-line Status – Select the Show On-line Status check box to list the savesets stored on the currently online media.

Click Apply Filter to set the filter.Searching for Data Items – To find a data item inside a saveset, right-click it, and select Search. Enter the item name in Search String and click Search.Viewing Media List – To view the media list for a saveset, right-click it and select Media List.Compressing Indexes – To compress the online indexes in order to reduce the space used by the NVDB, right-click the target Client or the saveset, and


32

select Compress. The index is automatically de-compressed when you open a saveset to browse or restore the data.

5.1.3 Setting Restore OptionsClick the Restore Options tab, and configure the following parameters:

NDMP Server – This parameter specifies the target filer name. It is only required when you want to restore the data to an alternate filer. By default, it contains the name of the original filer from which the data was backed up. Leave the default value while restoring data to the same filer.

Figure 5-3:Restore

Options tab

Break Mirror on Exit – After a snapshot is restored, the volume is in a SnapMirror Relationship state. In this state, a volume remains read-only. To break the SnapMirror Relationship and return a volume to READ-WRITE state after restore, select the Break Mirror on Exit check box. Alternatively, complete the following steps once the restore job completes successfully:1. Start a Telnet session, and log on to the filer on which the snapshot was

restored. 2. At the prompt, type:

snapmirror break <target volume>

5.1.4 Finalizing and Submitting a JobTo finalize and submit a restore job

1. Click the Source, Schedule, and Advanced Options tabs, and configure the required options. These options are common to all NVBU Plug-ins. For details on configuring these options, refer to the Quest NetVault Backup Administrator’s Guide.

2. In Job Title, enter a suitable title for the job. Specify a detailed title that allows you to easily identify the job for monitoring its progress.

3. Click Submit on the toolbar. Alternatively, on the Accept menu, click Submit Restore. You can monitor the job progress from the NVBU Jobs window, and


33

view the logs from the NVBU Logs window. For details on these functions, refer to the Quest NetVault Backup Administrator’s Guide.

Note: Due to NetApp configurations, recovery of a Snapshot will not restore quotas and they will need to be reproduced on the destination filer.

On NetApp Filers running ONTAP 7.0 and later versions, it is not possible to restore from Traditional Volumes to Flexible Volumes, or vice versa.

5.2.0 Restoring Block Level Incremental BackupsThis section describes the procedures for restoring data from the BLI-based Incremental and Differential Backup sequences.

5.2.1 Restoring Incremental BackupsTo restore data from Incremental Backups, use the following steps:

1. Before starting the restore procedure, place the destination volume in restricted mode. For details, refer to Prerequisites on page 29.

2. Restore the applicable Full Backup. To do this:a. Open the NVBU Restore window on the NVBU Server, and select the

applicable Full Backup. For details, refer to Selecting Data for a Restore on page 30.

Important: While restoring the Full or the Incremental Backups, do not select the Break Mirror on Exit check box on the Restore Options tab. If you select this check box or issue the snapmirror break statement, you will not be able to restore any additional Incremental Backups in the backup sequence. The volume must be in the SnapMirror Relationship status 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.

b. Complete and submit the job. For details, refer to Finalizing and Submitting a Job on page 32.

3. Repeat step 2 to restore the applicable Incremental Backups in the backup sequence. The Incremental Backups must be restored in the order in which they were created.


34

4. After a snapshot is restored, the volume is in a SnapMirror Relationship state. In this state, a volume remains read-only. To break the SnapMirror Relationship and return a volume to READ-WRITE state after restore, perform the following steps:1. Start a Telnet session, and log on to the filer on which the snapshot was



5.2.2 Restoring Differential BackupsTo restore data from Differential Backups, use the following steps:

1. Before starting the restore procedure, place the destination volume in restricted mode. For details, refer to Prerequisites on page 29.

2. Restore the applicable Full Backup. To do this:a. Open the NVBU Restore window on the NVBU Server, and select the

applicable Full Backup. For details, refer to Selecting Data for a Restore on page 30.

Important: While restoring the Full or the Differential Backup, do not select the Break Mirror on Exit check box on the Restore Options tab. If you select this check box or issue the snapmirror break statement, you will not be able to restore any additional backup in the backup sequence. The volume must be in the SnapMirror Relationship status to restore the Differential Backup.

If you break the SnapMirror Relationship before restoring a Differential Backup, restore the Full Backup again, and then restore the applicable Differential Backup.

b. Complete and submit the job. For details, refer to Finalizing and Submitting a Job on page 32.

3. Repeat step 2 to restore the latest or the applicable Differential Backup.4. After a snapshot is restored, the volume is in a SnapMirror Relationship state.

In this state, a volume remains read-only. To break the SnapMirror Relationship and return a volume to READ-WRITE state after restore, perform the following steps:1. Start a Telnet session, and log on to the filer on which the snapshot was




35

5.3.0 Advanced Restore ProceduresThis section describes the advanced restore operations that can be performed using the Plug-in for SM2T.

5.3.1 Renaming a Volume During RestoreThe Plug-in for SM2T allows you to rename a volume during a restore, which can be used to create a copy of the volume from the snapshot without overwriting the existing data.

To rename a volume during a restore

1. Open the NVBU Restore window, and select the applicable saveset. For details, refer to Selecting Data for a Restore on page 30.

2. Right-click the volume that you want to rename or relocate, and select Rename.

3. In the Restore Rename window, configure the following parameter:Figure 5-4:

RestoreRenamewindow

Rename to – Select the check box, and enter the exact path and the new name for the volume. For example, enter /vol/vol1 to rename vol0 to vol1. Ensure that the target volume is present on the filer and it is offline.

4. Click OK. On the Selections tab, the new name is displayed in parenthesis.Figure 5-5:New name

displayed inparenthesis onSelections tab

5. Configure the applicable restore options. For details, refer to Setting Restore Options on page 32.


36

6. Complete and submit the job. For details, refer to Finalizing and Submitting a Job on page 32.

5.3.2 Restoring Data to an Alternate NetApp FilerThe Plug-in for SM2T allows you to restore a volume to an alternate NetApp Filer, which can be used when the original filer is unavailable or dealing with limited capacity or bandwidth. The procedure for restoring data to an alternate Filer includes the following steps:

PrerequisitesRestore Procedure

5.3.2.a PrerequisitesBefore proceeding, ensure that the following requirements are met:

Add the alternate NetApp Filer to the Plug-in for SM2T. For details on adding an SM2T Server, refer to Adding a NetApp Filer to the Plug-in for SM2T on page 13.Ensure that the volume size of the destination filer is equal to or greater than the volume size of the original volume. This is necessary even if the amount of data transferred is smaller than the overall volume size of the destination filer. For example, if the original volume was 10GB and the data snapshot from it was 2GB, relocating this data to a different volume that is only 5GB in size will result in a failure.

5.3.2.b Restore ProcedureTo restore a volume to an alternate filer

1. Start the NVBU Console on the NVBU Server, and open the NVBU Restore window. Open the applicable saveset, and select the required data. For details, refer to Selecting Data for a Restore on page 30.

2. Click the Restore Options tab, and configure the following parameter:Figure 5-6:

RestoreOptions tab


37

NDMP Server – By default, this parameter contains the name of the original filer from which the data was backed up. To relocate the volume to an alternate filer, enter the name of the target NetApp Filer.

3. Configure the remaining options on this tab. For details, refer to Setting Restore Options on page 32.

4. Complete and submit the job. For details, refer to Finalizing and Submitting a Job on page 32.

5.4.0 Mirroring ProcessUsing NetApp’s SnapMirror utility and Plug-in for SM2T, it is possible to take a Snapshot from a NetApp Filer and transfer it to a piece of media, and then mirror this data to a second filer. However, the plug-in does not control this aspect of the operation. It is solely handled by NetApp utilities. For details on this procedure, contact NetApp or consult the appropriate documentation.

5.5.0 TroubleshootingThis section describes some common errors and their solution.

Description Symptom SolutionRestore fails with the message “Aborting:Destination volume, XXX, is too small.”

Restore fails immediately after the media is assigned and the restore operation is started on the filer.

Add more disk space to the destination volume or choose another destination volume of sufficient capacity.


38

Documents

Quest NetVault Backup Plug-insupport-public.cfm.quest.com/3875f6ba-facd-4733-9bc2-6f6afb76b2ea… · • Quest NetVault Backup Plug-in for SnapMirror to Tape – At a Glance ... Full,