Implementing an effective NDMP backup solution on IBM Storwize V7000 Unified system using CommVault Simpana

© Copyright IBM Corporation, 2011

Implementing an effective NDMP backup solution on IBM Storwize V7000 Unified

system using CommVault Simpana

A technical report

Udayasuryan Kodoly IBM Systems and Technology Group ISV Enablement

October 2011

Implementing an effective NDMP backup solution on IBM Storwize V7000 Unified system using CommVault Simpana © Copyright IBM Corporation, 2011.

Table of contents Abstract ..................................................................................................................................... 1 Executive summary .................................................................................................................. 1

Intended audience ................................................................................................................................... 1 Scope ....................................................................................................................................................... 1

Prerequisites ............................................................................................................................. 1 IBM Storwize V7000 Unified system ........................................................................................ 2

Storwize V7000 Unified system NDMP overview .................................................................................... 4 Storwize V7000 Unified supported NDMP physical configuration ........................................................... 5

Two-way (or remote) Storwize V7000 Unified NDMP configuration ................................................ 5 Three-way Storwize V7000 Unified NDMP configuration ................................................................ 6 Fundamentals of Storwize V7000 Unified NDMP feature ................................................................ 7 Storwize V7000 Unified NDMP command-line configuration .......................................................... 8 LAB Storwize V7000 Unified system configuration .......................................................................... 9 Storwize NDMP network group configuration .................................................................................. 9 Storwize V7000 Unified NDMP node group configuration using GUI .............................................. 9 Storwize V7000 Unified NDMP node group configuration using CLI ............................................. 15 Configuring Storwize V7000 Unified NDMP backup prefetch ........................................................ 16 Concurrent Storwize V7000 Unified NDMP backup and restore usage with other Storwize V7000 Unified functions ............................................................................................................................. 18 Considerations for CommVault Simpana data management application for Storwize V7000 Unified system NDMP backup ....................................................................................................... 19 Monitoring NDMP session on Storwize V7000 Unified system ..................................................... 20 Monitoring NDMP log information on Storwize V7000 Unified system .......................................... 21

CommVault Simpana 9.0 NDMP configuration ..................................................................... 22 CommVault Simpana 9.0 NDMP-specific software deployment ........................................................... 22 Launching CommVault Simpana 9.0 CommCell console on a Microsoft Windows computer .............. 23 Launching CommVault Simpana 9.0 CommCell console ...................................................................... 23 Storwize V7000 Unified NDMP configuration on CommVault Simpana 9.0 .......................................... 24

Tape library and drive configuration ............................................................................................... 24 Two-way (or remote) Storwize V7000 Unified NDMP library and drive configuration ................... 25 Three-way Storwize V7000 Unified NDMP library and drive configuration ................................... 31 Creating CommVault Simpana 9.0 storage policy ......................................................................... 39 Adding the CommVault Simpana 9.0 client for Storwize V7000 Unified NDMP ............................ 45 Creating a new subclient for the newly-created CommVault Simpana 9.0 Storwize V7000 Unified NDMP client ................................................................................................................................... 47

Storwize V7000 Unified NDMP backup using CommVault Simpana 9.0 NDMP essentials ................. 53 Types of CommVault Simpana 9.0 backup ................................................................................... 53 Initiating CommVault Simpana 9.0 full Storwize V7000 NDMP backup ........................................ 54 The CommVault Simpana 9.0 incremental / differential Storwize V7000 Unified NDMP backup considerations ................................................................................................................................ 57 Initiating CommVault Simpana 9.0 incremental / differential Storwize V7000 Unified NDMP backup ............................................................................................................................................ 58


Scheduling CommVault Simpana 9.0 Storwize V7000 Unified NDMP backup ............................. 61 Viewing CommVault Simpana 9.0 NDMP backup history ............................................................. 63

Storwize V7000 Unified NDMP restore using CommVault Simpana 9.0 ............................................... 65 Direct Access Restore.................................................................................................................... 65 Browse and restore Storwize V7000 Unified NDMP backup with CommVault Simpana 9.0 ........ 66

Summary ................................................................................................................................. 69 Appendix A: Glossary ............................................................................................................ 70 Appendix B: Materials used in the lab setup ........................................................................ 71 Appendix C: Resources ......................................................................................................... 72 About the author..................................................................................................................... 73 Trademarks and special notices ........................................................................................... 74


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Abstract This technical paper provides the best practices guide for implementing IBM Storwize V7000 Unified Network Data Management Protocol (NDMP) backup solution using CommVault Simpana. The IBM Storwize V7000 Unified system includes the IBM Storwize V7000 file module and the Storwize V7000 storage system. The IBM Storwize V7000 Unified system supports both block protocols and file protocols.

NDMP is an open protocol for managing data stored on networked file servers. The NDMP future development is under the direction of the Storage Networking Industry Association (SNIA), which has a work group for NDMP.

Executive summary This technical report provides details on configuring and enabling the NDMP with IBM® Storwize® V7000 Unified system and enabling CommVault Simpana NDMP-specific settings and functionality.

CommVault Simpana backup and recovery software for NDMP systems provides easy-to-use data and storage management capabilities that protect data residing on IBM Storwize V7000 Unified system. CommVault Simpana software leverages NDMP to deliver a proven data protection solution with efficient backup and reliable restore.

The IBM Storwize V7000 Unified system supports NDMP version 4. The NDMP function is configured and managed on the Storwize V7000 Unified system using the Storwize V7000 Unified command-line interface (CLI) from the active management node. NDMP alerts are written to the alert log on the Storwize V7000 Unified active management node.

Intended audience This technical report is intended for:

• Customers and prospects looking to implement effective NDMP backup solution on IBM Storwize V7000 system with the CommVault Simpana software

• Users and management seeking detailed information to implement NDMP backup solution on IBM Storwize V7000 system with the CommVault Simpana software

Scope This technical report provides:

• Detailed NDMP backup solution implementation on IBM Storwize V7000 Unified system with CommVault Simpana 9.0

• Detailed NDMP backup implementation guide and configuration best practices

This technical report does not: • Discuss any performance impact and analysis from a user perspective • Replace any official manuals and documents from IBM and CommVault on the products

used in the NDMP backup solution

Prerequisites This technical paper assumes familiarity with the following prerequisites:


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• Basic knowledge of IBM Storwize Unified system • Basic knowledge CommVault Simpana 9.0 • The IBM Storwize Unified appliance must have Storwize V7000 file module software

version 1.3 GA or higher.

IBM Storwize V7000 Unified system The IBM Storwize V7000 Unified system offers simple, unified storage architecture. In an IBM Storwize V7000 Unified system the file module is a clustered system comprised of two units that provide file systems for use by network-attached storage. The file module uses the Storwize V7000 storage system to provide the file module with volumes. Volumes are also provided on the storage area network (SAN).

Figure 1: IBM Storwize V7000 Unified System


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Figure 2: IBM Storwize V7000 Unified architecture

The IBM Storwize V7000 Unified file module software contains both interface-node and management node functions. A management node is used for configuring, administering, and monitoring a system. An interface node connects a system to an Internet Protocol (IP) network.

The Storwize V7000 Unified software performs the following functions for the host systems that are attached to the Storwize V7000 Unified system:

• Creates a single pool of storage • Provides logical unit virtualization • Manages logical volumes • Mirrors logical volumes


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The Storwize V7000 Unified system also provides the following functions:

• Large scalable cache • Copy services

− IBM Tivoli® Storage FlashCopy® Manager (point-in-time copy) function, including thin-provisioned FlashCopy to make multiple targets affordable

− Metro Mirror (synchronous copy) − Global Mirror (asynchronous copy) − Data migration

• Space management − IBM System Storage® Easy Tier™ to migrate the most frequently used data to

higher performing storage − Metering of service quality when combined with IBM Tivoli® Storage Productivity

Center − Thin-provisioned logical volumes

This offers great flexibility to customers in meeting their storage needs that can either be file-based or block-based.

Storwize V7000 Unified system NDMP overview IBM Storwize V7000 Unified system supports NDMP version 4. NDMP is a network-based protocol used by data management applications primarily for backing up and restoring the files contained within a network-attached storage (NAS) system, such as IBM Storwize V7000 Unified system.

The Storwize V7000 Unified system NDMP feature provides the capability to backup and restore the files and directories within file systems of Storwize V7000 Unified system. The granularity of backup is at the directory level. NDMP supports the concept of a full backup and an incremental backup. A full backup backs up all files and directories specified by Storwize V7000 Unified NDMP feature. An incremental backup backs up those files and directories that have changed since the last full backup. Incremental backups are cumulative.

A cumulative incremental backup backs up the files that are specified in the backup selections list that have changed since the last full backup. All files are backed up, in the event no previous backup has been finished. Cumulative incremental backups occur automatically according to the scheduled criteria. A complete restore requires the last full backup and the last cumulative incremental backup.

A differential incremental backup backs up the files that have changed since the last successful incremental (differential or cumulative) or full backup. All files are backed up if no previous backup has been done. Differential incremental backups occur automatically according to the scheduled criteria. A complete restore requires the last full backup, the last cumulative incremental backup, and all differential incremental backups that have occurred since the last full backup.


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Storwize V7000 Unified supported NDMP physical configuration There are two primary NDMP configurations that can be used with the Storwize V7000 Unified system.

• Two-way (or remote) NDMP

• Three-way NDMP

The following sections describe the two-way (or remote) and three-way NDMP configurations in detail.

Two-way (or remote) Storwize V7000 Unified NDMP configuration

The two-way NDMP consists of an external data management application, such as CommVault Simpana, running on a server external to the Storwize V7000 Unified system. The data management application system has some form of storage hierarchy, such as a tape library or tier 2 disk storage that it manages for the storage of backup data.

In addition to the external data management application (CommVault Simpana) system, an Ethernet network exists that connects the data management application system to the Storwize V7000 file modules on which the NDMP server is running. NDMP control and data traffic flow across this network, between the external data management application system and the Storwize V7000 Unified file modules, on which the NDMP server is running.

Recommendation: The recommendation is that this network be a high speed 10 Gb Ethernet network to handle the volume of data being backed up or restored. However, nothing prevents this network from being a 1 Gb Ethernet network.

Figure 3 shows an example of a two-way Storwize V7000 Unified NDMP configuration. It includes an external data management application (CommVault Simpana) running on a server external to the Storwize V7000 Unified system. The data management application server has an IBM System Storage TS7650G ProtecTIER® Deduplication Gateway attached to it through an 8 Gbps Fibre Channel (FC) SAN. The System Storage TS7650G ProtecTIER Deduplication Gateway has an IBM System Storage DS5000 storage controller attached to it through 8 Gbps FC links, which in turn has some number of IBM System Storage DS5000 disk storage expansion units attached to it through 8 Gbps FC links. The data management application is connected to a 10 Gbps Ethernet network to which the Storwize V7000 Unified file modules are attached. In Figure 3, the lines are intended to show the type and speed of the connections between the various physical components and do not necessarily represent the actual number of physical links.


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Figure 3: Two-way (remote) Storwize V7000 NDMP configuration

Three-way Storwize V7000 Unified NDMP configuration

In a three-way Storwize V7000 Unified NDMP configuration, an NDMP tape server is installed on a server external to the Storwize V7000 Unified system and separate from the server on which the CommVault Simpana data management application is running. Some form of storage devices, such as a virtual tape library or real tape library and tape drives are attached to the server running the NDMP tape server.

The NDMP controls the traffic flow between the CommVault Simpana data management application system and the Storwize V7000 Unified file modules. NDMP data traffic flows between the Storwize V7000 Unified file modules and the NDMP tape server. In this scenario, only NDMP control traffic is flowing between the CommVault Simpana data management application system and the Storwize V7000 Unified file modules. Therefore, the CommVault Simpana data management application system does not need to be on a high-speed network. The CommVault Simpana (data management application) system can use a lower speed, 1 Gbps Ethernet, network to connect the Storwize V7000 Unified file modules and the external server on which the NDMP tape server is running.

However, NDMP data traffic (the actual data being backed up or restored) is flowing between the Storwize V7000 Unified file modules and the external server on which the NDMP tape server is running.


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Recommendation: It is recommended that the Ethernet network between the NDMP tape server and the Storwize V7000 Unified file modules running the NDMP server be a high-speed 10 Gbps Ethernet network.

Figure 4 shows an example of an NDMP three-way configuration. In this example, the Storwize V7000 Unified file modules (used for file serving) and the data management applications are connected on a 1 Gbps Ethernet network. Storwize V7000 Unified file modules used for NDMP backup and restore, are also connected to a 10 Gbps Ethernet network along with the NDMP tape server. The server on which the NDMP tape server is running is connected to an 8 Gbps FC SAN along with an IBM System Storage TS3500 tape library with some FC-attached tape drives, such as IBM Linear Tape-Open data cartridges, Generation 3, Generation 4, or Generation 5 tape drives.

Figure 4: Three-way Storwize V7000 NDMP configuration

Fundamentals of Storwize V7000 Unified NDMP feature The following points explain the fundamentals of Storwize V7000 Unified NDMP features:

An NDMP version 4 compliant data server is available on file modules of the Storwize Unified storage system. There is a provision to create both the file modules that will be part of the ndmp node group configuration. Both file modules are paired with the network group IP addresses that can be assigned to a specific network port. This network port is associated with the NDMP service.


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The NDMP server running on a file module provides for both data and control connections to servers external to the Storwize V7000 Unified storage system on which a data management application (CommVault Simpana) is running.

The ability to configure the NDMP parameters for file modules (the NDMP_NODE_GROUP) is provided through Storwize V7000 Unified CLI commands that are run from the file module, which stores the NDMP configuration parameters in the Samba Registry.

In addition to the Storwize V7000 Unified CLI commands available to store and retrieve NDMP configuration parameters, a set of CLI commands are provided to view NDMP session information and NDMP log information, and to stop currently running NDMP sessions.

An NDMP backup session provides a backup of a specific directory in an IBM General Parallel File system (IBM GPFS™) and all files and subdirectories contained within it. Besides the basic data of the files and directories, all extended GPFS attributes are saved for every file and directory. In order to provide the provision to back up a directory structure at a given point in time, a snapshot is used and it is actually the snapshot of the directory structure that is backed up. This snapshot also accounts for files that might be open or in use during the backup as a point-in-time representation of the file that is backed up by NDMP.

An NDMP restore session restores all the files and directories in the proper structure of subdirectories, and so on. In addition to the actual file contents, the GPFS extended attributes are also restored.

Storwize V7000 Unified NDMP command-line configuration

The following Storwize V7000 Unified CLI commands (shown in Table 1) are available for configuring, monitoring, and managing the NDMP configuration parameters and NDMP sessions.

Table 1: Storwize V7000 Unified CLI command description

# Storwize V7000 Unified CLI command Usage description

1 cfgndmp Configure NDMP

2 cfgndmpprefetch Configuring NDMP backup prefetch

3 lsndmp List NDMP configuration

4 lsndmplog List the actual contents of the NDMP log on the given file module

5 lsndmpsession List NDMP session information

6 rmndmpcfg

Remove NDMP configuration information for a specified NDMP node group

7 stopndmpsession Stop NDMP session

8 lsndmpprefetch List NDMP prefetch configuration


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LAB Storwize V7000 Unified system configuration

In the lab:

The Storwize V7000 Unified system has one enclosure for block access functionality.

The Storwize V7000 Unified system has two file modules that act as management nodes, interface nodes, and storage nodes for file-level access: mgmt001st001, mgmt002st001

The Storwize V7000 Unified system file cluster is defined as: ifs1isv.storage.tucson.ibm.com

There are 10 Gb Ethernet cards on each file modules and configured ethX1 to access the bonded ports.

(Refer to “Appendix B: Materials used in the lab setup” for more information)

Storwize NDMP network group configuration

This section provides the guidelines to create and configure network group that includes file modules that will service NDMP requests for the NDMP node group.

• Create a network group comprising two file modules using mknwgroup Storwize V7000 Unified CLI command on file modules.

mknwgroup ndmp_nw_group mgmt001st001,mgmt002st001

Validate the newly created network group using the lsnwgroup Storwize V7000 Unified CLI command on file modules.

• Create a network with configurable IP addresses using the mknw Storwize V7000 Unified CLI command on file modules.

mknw 17.0.0.0/24 0.0.0.0/0:17.0.0.1 --add 17.0.0.100,17.0.0.101, 17.0.0.102, 17.0.0.103

Note: Refer to the URL: http://oav.net/mirrors/cidr.html to figure out the Classless Inter-Domain Routing (CIDR). In this example, mknw CLI use 17.0.0.0/24…

Validate the newly created network using the lsnw Storwize V7000 Unified CLI command on file modules.

• Attach the newly created network group, ndmp_nw_group, to the newly created network using the attachnw Storwize V7000 Unified CLI command on file modules.

attachnw 17.0.0.0/24 ethX0 -g ndmp_nw_group

Storwize V7000 Unified NDMP node group configuration using GUI

In order to use Storwize V7000 Unified GUI to configure NDMP, log in to Storwize V7000 Unified system GUI using https://<IP Address>:1081.

Note: It is recommended to use the Mozilla Firefox browser to access the Storwize V7000 GUI for appropriate functional performance.

1. Click the Files icon in the left pane and click Services to start configuring NDMP backup, as shown in Figure 5.


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Figure 5: Configuring Storwize V7000 Unified NDMP backup services

2. Click Backup Selection on the Services menu and click Edit, as shown in the Figure 6.

Figure 6: Enabling the Backup Selection

3. On the Backup Selection page, select Network Data Management Protocol and click OK, as shown in the Figure 7.

Note: Both Tivoli Storage Manager and NDMP backup are not supported on the same Storwize V7000 Unified storage system.


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Figure 7: Selecting NDMP-based backup selection

4. Click Backup on the Services menu, and then click New Backup NDMP, as shown in the Figure 8.

Figure 8: Configuring NDMP backup

5. In the General tab of the New NDMP Node Group window, select the Enable NDMP session check box and enter the NDMP node group name. From the File System list, select a file system to be used for backup or restore operations through NDMP, and from the Network group list, select a network group. After selecting the network group, the network group’s interface nodes and the network group’s public IP addresses will be displayed in the window, as shown in Figure 9.


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Figure 9: Configuring NDMP Node Group

6. In the Advanced tab, select the advance configuration options for NDMP configuration. You can also choose to retain the default options. Activate the prefetch functionality by selecting Prefetch activated check box and click OK, as shown in the Figure 10.


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Figure 10: Configuring the new NDMP node group

7. The wizard creates and configures the NDMP backup node group and the summary will be displayed, as shown in the Figure 11. Verify the summary information and click Close.


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Figure 11: NDMP Node Group Configuration Summary

8. The newly configured NDMP node group gets displayed in the main window. From the Actions list, select Activate command to activate the newly created NDMP node group, as shown in the Figure 12.

Figure 12: Activating the NDMP node group

9. The wizard activates the NDMP configuration and displays the summary, as shown in the Figure 13. Verify the summary information and click Close


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Figure 13: NDMP node group activation summary

Storwize V7000 Unified NDMP node group configuration using CLI

This section provides the appropriate guidelines to create and configure the Storwize V7000 Unified NDMP node group.

• A Storwize V7000 Unified NDMP configuration can be defined only for an NDMP node group.

• A Storwize V7000 Unified NDMP node group must be created before any other specific Storwize V7000 Unified NDMP node group configuration parameters can be set.

• A Storwize V7000 Unified NDMP node group is created, configured, and activated appropriately, before an NDMP backup or restore can be configured on the CommVault Simpana Data Management Application (DMA) server.

To configure the Storwize V7000 Unified NDMP node group:

1. Create an NDMP node group using the --create option of the cfgndmp command on the Storwize V7000 Unified file module.

cfgndmp -c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --create

2. Attach the newly configured network group, ndmp_nw_group, (refer to the “Storwize V7000 Unified NDMP network group configuration” section) to the newly created Storwize V7000 Unified NDMP node group using the cfgndmp Storwize V7000 Unified CLI command with the --networkGroup option on the file module.

cfgndmp -c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --networkGroup ndmp_nw_group


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3. Set the data port range of the NDMP node group using the --dataTransferPortRange option of the cfgndmp command on file module.

cfgndmp -c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --dataTransferPortRange 2048-2098

4. Add the file system mount point paths to the NDMP node group configuration using the -addPaths option of the cfgndmp command on the Storwize V7000 Unified file module.

cfgndmp -c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --addPaths /ibm/gpfs0,/ibm/gpfs1

5. A default NDMP backup prefetch configuration is assigned to a newly created NDMP node group, with the function deactivated. Optionally, use the cfgndmpprefetch CLI command to change the NDMP backup prefetch configuration and activate the function for improved NDMP backup performance. Refer to the “Configuring Storwize V7000 Unified NDMP backup prefetch” section for more information.

6. Activate the NDMP node group with the –-activate option of the cfgndmp CLI command.

cfgndmp -c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --activate

Note: You can use the lsndmp CLI command with the -ndmpServiceStatus option to verify that NDMP has started on all the nodes in the NDMP node group, on the Storwize V7000 Unified file module.

lsndmp -c ifs1isv.storage.tucson.ibm.com [-s] [--ndmpServiceSatus]

Figure 14: lsndmp CLI usage

Configuring Storwize V7000 Unified NDMP backup prefetch

The NDMP backup prefetch function reiterate the directory that is being backed up, reading files in advance to the files actually coming due to be backed up. The prefetch function opens files in the read-only mode and places the files in the file module’s cache for improved backup performance.

NDMP backup prefetch is designed to work on files that are less than or equal to 1 MB in size.

Restriction: Storwize V7000 Unified NDMP backup prefetch will not work for a file system that has a block size that is greater than 1 MB.

To activate the NDMP backup prefetch feature, use the cfgndmpprefetch CLI command with the --activate option. Specify the NDMP node group to enable NDMP prefetch feature with Storwize V7000 Unified NDMP node group, as in the following example on the Storwize V7000 Unified file module.


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cfgndmpprefetch -c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --activate Note: If NDMP is not active on the specified NDMP node group, a message is displayed indicating that prefetch for NDMP will be activated when NDMP is activated.

To set a limit for the number of applications that can simultaneously use the Storwize V7000 Unified NDMP backup prefetch for a node, (including multiple instances of the same program such as multiple Storwize V7000 Unified NDMP sessions) use the cfgndmpprefetch CLI command with the --appLimit option, as in the following example on the Storwize V7000 Unified file module.

cfgndmpprefetch –c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --appLimit 4

Note: If NDMP is not active on the specified NDMP node group, a message is displayed indicating that the configuration for prefetch for NDMP has been updated.

To set a limit for the number of prefetching threads on file module, use the cfgndmpprefetch CLI command with the -numThreads option, as in the following example on the Storwize V7000 Unified file module.

cfgndmpprefetch –c ifs1isv.storage.tucson.ibm.com ndmp_node_grp1 --numThreads 100

Note: The value for the --numThreads option must be a positive integer, greater than 50 and less than or equal to 180. The default value is 100.

To display NDMP backup prefetch status information, use the lsndmpprefetch CLI command using the -s or --status option, and optionally adding the -g option to limit display to the specified NDMP node group, as in the following example on the Storwize V7000 Unified file module.

lsndmpprefetch –c ifs1isv.storage.tucson.ibm.com –g ndmp_node_grp1 -s


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Concurrent Storwize V7000 Unified NDMP backup and restore usage with other Storwize V7000 Unified functions

The information in Table 2 helps you identify which Storwize V7000 Unified features and functions can be currently used on the same Storwize V7000 Unified system.

Features

and functions

Antivirus scanning

Asynchronous replication

Hierarchical Storage

management (HSM)

processing

NDMP backup

and restore

IBM Tivoli Storage Manager backup

and restore

Storwize V7000 Unified Block

functions

Antivirus scanning N/A

Same system: Yes Same file module: Yes

Same system: Yes Same file module: Yes Refer Note 3


Same system: Yes Same file module: Yes Yes

Asynchronous replication

Same system: Yes Same file module: Yes N/A




HSM processing


Same system: Yes Same file module: Yes Refer Note 2 N/A

Same system: No Same file module: No


NDMP backup and restore



Same system: No Same file module: No N/A

Same system: No Same file module: No Refer Note 1 Yes

Tivoli Storage Manager backup and restore




Same system: No Same file module: No Refer Note 1 N/A Yes

Storwize V7000 Unified Block functions Yes Yes Yes Yes Yes N/A

Table 2: Concurrent Storwize V7000 Unified NDMP backup and restore usage with other Storwize V7000 Unified functions


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Notes:

• IBM Tivoli Storage Manager backup / restore and NDMP backup / restore provide the same basic functionality of backing up or restoring file systems and the directories and files within the file systems. It is not recommended and not supported to have both Tivoli Storage Manager backup restore processing and NDMP backup restore processing being used on the same Storwize V7000 Unified system.

• NDMP backups are normally scheduled operations, which can be scheduled at a time when other activity, such as general purpose file serving, is low. If possible, it is recommended to perform NDMP backups during periods when other file serving activity is generally lower, perhaps late in the evening or early in the mornings.

• In case the NDMP backup or restore processing significantly interferes with other Storwize V7000 Unified functions, such as network file serving (CIFS, NFS, FTP, HTTP), then consider increasing the processing power and memory configuration of the Storwize V7000 file modules. Many Storwize V7000 Unified functions invoke the GPFS policy engine to evaluate a GPFS policy to determine the list of files to operate on. These include:

− Tivoli Storage Manager backup processing − Tivoli Storage Manager HSM processing − NDMP incremental backup processing − Asynchronous replication processing − The runpolicy CLI command and others

The GPFS policy engine scans the file system metadata to determine the files that match the criteria specified in the policy. This scan of the file system metadata can generate a significant amount of I/O to the storage systems to read all the file system metadata, especially for file systems containing very large number of files, such as 10s or 100s of millions of files. Therefore, it is recommended not to start all the Storwize V7000 Unified functions at exactly the same time, but instead stagger them over time.

Considerations for CommVault Simpana data management application for Storwize V7000 Unified system NDMP backup • Obtain either the IP address or host name for the file module to be used for a given

NDMP session. − Host name: Configure a DNS server with a common host name mapped to all of

the IP addresses that are associated with the network group that is associated with the NDMP node group. If this hostname is used, any of the file modules that are associated with the NDMP node group can be assigned based on a round robin IP address assignment from the DNS server.

− IP address: Submit the lsnwinterface CLI command using the -x option on the file module of the Storwize V7000 Unified system and choose an appropriate IP address or multiple IP addresses if multiple backup policies are to be run simultaneously. This method is useful if multiple NDMP backup policies are used


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and you want to distribute the NDMP workload across file modules and ensure that the same file module will not be used for all of the backup policies that will be run from the DMA server.

• Configure the CommVault Simpana 9.0 DMA server with the configuration parameters of the NDMP server for the file module that are available to perform NDMP services, including the username and password associated with the NDMP node group. If a port other than 10000 was selected for the NDMP control port, then that control port's information needs to be configured on the DMA server.

Monitoring NDMP session on Storwize V7000 Unified system

Note: Read this information after configuring CommVault Simpana NDMP configuration and staging appropriate Storwize V7000 Unified NDMP backup or restore. Refer to the “CommVault Simpana NDMP configuration” section for more information.

• The lsndmpsession CLI command enables to monitor the NDMP session on the Storwize V7000 Unified system. Use the -n or -nodes option to view NDMP sessions running on specified file module or with the -g or --nodeGroupName option to view NDMP sessions running on specified NDMP node groups.

Only file modules can be specified when using the -n or --nodes option. Multiple file modules and multiple node groups in a list must be separated with commas. If no file modules or node groups are specified, the output displays the information for all the file modules in the cluster. To determine the file modules that are running the NDMP sessions for an NDMP node group, submit the following command that shows the file module that has NDMP sessions running and the sessions that are running on the nodes:

lsndmpsession –c ifs1isv.storage.tucson.ibm.com -n mgmt001st001

Or

lsndmpsession –c ifs1isv.storage.tucson.ibm.com –g ndmp_node_grp1

• Use the Storwize V7000 Unified CLI lsndmpsession command with the -i or --sessionID option to view the verbose information of the NDMP session identified by the specified session ID (sid) running on the specified file module. In the following example, the sid 1284990 is specified. Use the Storwize V7000 CLI lsndmpsession command with the -i or --sessionID option to view the verbose information of the NDMP session identified by the specified session ID (sid) running on the specified file module.

lsndmpsession –c ifs1isv.storage.tucson.ibm.com -n mgmt001st001 -i 1284990


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Monitoring NDMP log information on Storwize V7000 Unified system

You can view Storwize V7000 Unified NDMP log using the lsndmplog CLI command.

• Use the Storwize V7000 Unified CLI lsndmplog command with the -n or --nodes option to view all the NDMP log information related to the specified file module. In the following example, the file module mgmt001st001 is specified:

lsndmplog -c st001.vsofs1.com -n mgmt001st001

• Use the Storwize V7000 Unified CLI lsndmplog command with the -l or --lines option to

view the most recent lines of the NDMP log information related to the specified interface node. In the following example, the node int005st001 and 25 lines are specified:

lsndmplog -c st001.vsofs1.com -n mgmt001st001 -l 25

• Use the Storwize V7000 Unified CLI lsndmplog command with the -o or --outputLogFilePath option to save the log file as a temporary file, as in the following example:

lsndmplog -c st001.vsofs1.com -n mgmt001st001 -o /ibm/gpfs0/ndmplog.out


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CommVault Simpana 9.0 NDMP configuration CommVault Simpana 9.0 utilizes NDMP to initiate and control backups and restores on NAS systems, such as Storwize V7000 Unified.

CommVault Simpana 9.0 NDMP-specific software deployment The following CommVault Simpana 9.0 NAS iDataAgent software is required to install on the data management application (DMA) host system:

Essential components: • MediaAgent – For complete information, refer to Media Agent deployment at the URL:

http://documentation.commvault.com/commvault/release_9_0_0/books_online_1/english_us/deployment/deployment.htm?var1=http://documentation.commvault.com/commvault/release_9_0_0/books_online_1/english_us/deployment/mediaagent.htm

• Microsoft® Windows® File System iDataAgent – This is required when using a Windows

Media agent. For complete information, refer to Deployment - Windows File System iDataAgent at the URL: http://documentation.commvault.com/commvault/release_9_0_0/books_online_1/english_us/deployment/deployment.htm?var1=http://documentation.commvault.com/commvault/release_9_0_0/books_online_1/english_us/deployment/windows.htm (For UNIX® MediaAgent, the File System iDataAgent is not required.)

Additional components:

• NRS install – Installing the NDMP remote server software is required, if the tape library is attached to the MediaAgent. Refer to Install the NDMP Remote Server (NRS) - Unix at the URL: http://documentation.commvault.com/hds/release_9_0_0/books_online_1/english_us/deployment/upgrade/nas_ndmp.htm for step-by-step instructions on installing NDMP remote server software on Unix system.

Note: On UNIX, the NDMP remote server is a separate installation from the MediaAgent. The NDMP remote server installation can be performed at the same time as the MediaAgent on a Windows system.


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Launching CommVault Simpana 9.0 CommCell console on a Microsoft Windows computer To launch CommVault Simpana 9.0 CommCell console as a stand-alone application on Microsoft Windows computer:

1. Launch the CommCell Console from the Start Programs menu, or by clicking the CommCell Console icon on your desktop.

2. Enter the user name, password and the name of the CommCell you wish to connect and click OK to continue.

Launching CommVault Simpana 9.0 CommCell console To launch CommVault Simpana 9.0 CommCell console as a stand-alone application on a Linux® RHEL computer:

1. Log in to RHEL GNOME (GUI) using root access authentication. 2. Launch the terminal and type console and press Enter. 3. Provide the appropriate CommServ user credential and password to launch the

CommCell stand-alone browser. (Refer to Figure 15 and Figure 16).

Figure 15 : CommCell authentication


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Figure 16: CommCell GUI console

Storwize V7000 Unified NDMP configuration on CommVault Simpana 9.0 This section describes Storwize V7000 Unified NDMP configuration with CommVault Simpana 9.0 in detail.

Tape library and drive configuration

To configure tape library, double-click Library and Drive Configuration from the Control Panel of CommCell GUI, as shown in the Figure 17.

Figure 17: ComCell Control Panel


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Two-way (or remote) Storwize V7000 Unified NDMP library and drive configuration

To configure a two-way (or remote) Storwize V7000 Unified NDMP library and drive:

1. Select the appropriate MediaAgent from the Available MediaAgents list box, click Add, and then click OK to continue. (Refer to Figure 18).

Figure 18: Select MediaAgents dialog box

2. The Library and Drive Configuration tool, as shown in Figure 19 is displayed. Click Start and then click Detect/Configure Devices to launch the Detect Library dialog box, as shown in Figure 20.


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Figure 19: The Library and Drive Configuration tool

Figure 20: Detect Library dialog box

3. Select SCSI Devices for the libraries attached to the SCSI or FC adapter and click OK to continue.

4. The Library and Disk Configuration tool initates the process to identify the connected tape libraries, as shown in Figure 21. After tape library configuration, click View Log for details.


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Figure 21: The Library and Disk Configuration tool in process


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5. The Library and Disk Configuration tool provides the log information for the detected tape library, as shown in Figure 22.

Figure 22: Log information for the detected tape library

6. The Library and Disk Configuration tool provides the display with detected tape libraries,

as shown in Figure 23.

Figure 23: The Library and Drive Configuration tool displaying the detected tape libraries


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7. Right-click the detected tape library and click Configure to configure the tape library, as

shown in Figure 24.

Figure 24: Configuring a selected tape drive

8. In the Configuration dialog box, select Library and all drives and click OK (as shown in

Figure 25) to configure the tape library and the drives.

Figure 25: Specify the options to configure both tape library and drives

9. Select an appropriate media type and click Yes to continue, as shown in Figure 26.


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Figure 26: Discover Media Options dialog box

Notice that the Library and Drive Configuration tool displays the configured tape library and drives, as shown in Figure 27.

Figure 27: The Library and Drive Configuration tool displaying the configured tape library and drives


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Three-way Storwize V7000 Unified NDMP library and drive configuration

Perform the following steps for Storwize V7000 Unified three-way NDMP tape server authentication and tape configuration on CommVault Simpana 9.0

To configure a three-way Storwize V7000 Unified NDMP library and drive:

1. Select the appropriate MediaAgent from the Available MediaAgents list box and click

Add. Then click OK to continue, as shown in Figure 28.

Figure 28: Select MediaAgents dialog box

2. The Library and Configuration tool will be launched. Click Start and then click Detect/Configure Devices to launch the Detect Library dialog box, as shown in Figure 29.


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Figure 29: The Library and Drive Configuration tool

3. In the Detect Library dialog box, select NDMP Devices, select the appropriate MediaAgent, and then click OK to continue, as shown in Figure 30.

Figure 30: Select NDMP Devices from Detect Library dialog box

4. Click Update NDMP Host List and click OK, as shown in Figure 31.


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Figure 31: Updating the NDMP host list

5. In the NDMP Server List dialog box, click Add to provide the Storwize V7000 Unified

NDMP tape server IP address information, as shown in Figure 32.

Figure 32: The NDMP Server List dialog box

6. In the Add NDMP Server dialog box, provide the Storwize V7000 Unified NDMP tape server IP address and Storwize V7000 Unified NDMP credentials and click OK to continue, as shown in Figure 32.


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Figure 33: Providing the Storwize V7000 Unified NDMP tape server IP address information


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7. In the NDMP Server List dialog box, click Close to continue, as shown in Figure 34.

Figure 34: NDMP Server List dialog box displaying the recently added IP address

8. Select the Storwize V7000 Unified NDMP tape server from the Available NDMP Servers

list box and click Add. Then click OK to continue, as shown in Figure 35.

Figure 35: Selecting NDMP tape server


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9. In the NDMP tape server library configuration confirmation message box, click Yes to continue after NDMP tape server is configured, click View Log for details as show in the Figure 36.

Figure 36: The Library and Disk Configuration tool in process

10. The Library and Disk Configuration tool provides the log information for the detected tape library of the NDMP tape server, as shown in Figure 37.

Figure 37: Log information of the detected tape library of the NDMP tape server


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11. Right-click the detected tape library of the NDMP tape server and click Configure (as shown in Figure 38) to configure the tape library of the NDMP tape server.

Figure 38: Configuring the tape library of the NDMP tape server

12. Select Library and all drives and click OK (as shown in Figure 39) to configure the tape

library and the drives for the NDMP tape server.

Figure 39: Setting the configuration options


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13. In the Discover Media Options dialog box, select an appropriate media type and click Yes to continue, as shown in Figure 40.

Figure 40: Specifying the media type

The Library and Drive Configuration tool displays the configured tape library and drives of the NDMP tape server, as shown in Figure 41.

Figure 41: The Library and Drive Configuration tool displaying the configured tape library and drives


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Creating CommVault Simpana 9.0 storage policy

To create a CommVault Simpana 9.0 storage policy:

1. Launch CommVault Simpana 9.0 CommCell. 2. In the CommCell browser, right-click the Storage Policies node and click New Storage

Policy, as shown in Figure 42.

Figure 42: Creating a new storage policy

3. In the Create Storage Policy wizard, select Data Protection and Archiving and click Next to continue, as shown in Figure 43.

Figure 43: Create Storage Policy Wizard


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4. Enter an appropriate storage policy name (as shown in the Figure 44) and click Next to continue.

Figure 44: Providing a name for the storage policy


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5. Select the appropriate tape library from the Library list and click Next to continue, as shown in the Figure 45.

Figure 45: Specifying the default library for the primary copy

6. Associate the default media agent and the drive pool for the primary copy and click Next to continue, as shown in the Figure 46.

Figure 46: Associating the default MediaAgent and drive pool for the primary copy


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7. Select the appropriate scratch pool and click Next to continue.

Figure 47: Selecting the scratch pool

8. Configure the device stream and iDataAgent backup retention policies and click Next to

continue, as shown in the Figure 48.

Figure 48: Configuring the device stream and iDataAgent backup retention policies


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9. Select the Hardware Compression check box for storage policy and click Next to continue, as shown in the Figure 49.

Figure 49: Enabling hardware compression for the storage policy copy

10. Review the storage policy configurations and click Finish to exit and create storage

policy, as shown in the Figure 50.


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Figure 50: Confirming the selected attributes

Notice the newly created storage policy under the Storage Polices node in the CommCell browser, as shown in the Figure 51.

Figure 51: Storage Policies node displaying the newly-created storage policy


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Adding the CommVault Simpana 9.0 client for Storwize V7000 Unified NDMP

To add the CommVault Simpana 9.0 client for Storwize V7000 Unified NDMP:

1. From Storwize V7000 Unified system, validate the network configuration of the interface nodes using the lsnwinterface Storwize V7000 Unified CLI command with the --extended or -x option, as shown in the Figure 52.

Figure 52: lsnwinterface -x CLI

2. In the CommCell browser, right-click the Client Computers node and click New Client, as shown in the Figure 53.

Figure 53: Creating a new client


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3. From the Select Client list, select NAS Client click OK to continue, as shown in the Figure 54.

Figure 54: Add New Client dialog box

4. Enter the appropriate Storwize V7000 Unified NDMP interface node IP address and

Storwize V7000 Unified NDMP credentials. Then click Detect to validate the Storwize V7000 Unified NDMP server and then click OK to continue, as shown in the Figure 55

Note: By default, the Storwize V7000 Unified NDMP login ID is ndmp and password is ndmp.

Figure 55: Adding the NDMP interface node IP address


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Notice that the Storwize V7000 Unified NDMP server client is added to the CommCell browser, as shown in the Figure 56.

Figure 56: Storwize V7000 Unified NDMP server client added to the CommCell browser.

Creating a new subclient for the newly-created CommVault Simpana 9.0 Storwize V7000 Unified NDMP client

The Storwize V7000 Unified system consists of many file systems. In order to backup specific Storwize V7000 Unified file system, you need to create subclients to point to a specific Storwize V7000 Unified file system to perform NDMP backup. Refer to Figure 57.

Figure 57: Storwize V7000 Unified NDMP file system subclient


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To create a new subclient:

1. In the newly-created Storwize V7000 Unified NDMP client within the CommCell browser, right-click the DefaultbackupSet node and click All Tasks New Subclient, as shown in the Figure 58.

Figure 58: Creating a new subclient


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2. On the General tab, enter an appropriate name for the new subclient, as shown Figure 59.

Figure 59: Specifying a name for the new subclient


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3. On the Content tab, select the specific Storwize V7000 Unified file system directory to backup and click Add, as shown in the Figure 60.

Figure 60: Specifying the Storwize V7000 Unified file system directory for backup


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4. On the Storage Device tab, associate the appropriate storage policy (as shown in the Figure 61). Refer to the “Creating CommVault Simpana 9.0 storage policy” section for more information.

Figure 61: The Storage Device tab


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5. On the Deduplication subtab, select the Enable Deduplication check box, in order to enable the deduplication feature during NDMP backup and click OK (as show in the Figure 62).

Figure 62: Enabling deduplication


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6. On the Backup Schedule dialog box, select an appropriate backup schedule option. In this example, the Do Not Schedule option is selected. Click OK to create a new subclient.

Figure 63: Backup Schedule dialog box

Storwize V7000 Unified NDMP backup using CommVault Simpana 9.0 NDMP essentials This section illustrates Storwize V7000 Unified NDMP essential backup details and the procedure to configure the Storwize V7000 Unified NDMP differential and incremental backup with CommVault Simpana 9.0.

Types of CommVault Simpana 9.0 backup

The different types of CommVault Simpana 9.0 backup are:

• Full backup: A full backup contains all the data that comprises a subclient's contents. You can also perform a backup at the backup-set or instance-level, and apply to all of the subclients within the selected backup set or instance.

• Incremental backup: An incremental backup contains only data that is new or has changed since the last backup, regardless of the type. On an average, incremental backup consume far less storage space and less burden on resources, than full backup.


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• Differential backup: A differential backup contains only the data that is new or has changed since the last full backup. Similar to incremental backup, differential backups, on an average, consume less storage space and less burden on resources, than full backup.

Initiating CommVault Simpana 9.0 full Storwize V7000 NDMP backup

To initiate CommVault Simpana 9.0 full Storwize V7000 Unified NDMP backup:

1. In the CommCell browser, right-click the newly-created subclient and click Backup, as show in the Figure 64.

Figure 64: Creating a full Storwize V7000 Unified NDMP backup


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2. In the Select Backup Type section, select Full and in the Job Initiation section select Immediate. Then click Advanced.

Figure 65: Specifying the backup options


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3. On the Data Path tab select the correct media agent, library, drive pool, and drive and then click OK, as shown in Figure 66.

Figure 66: Specifying advanced backup options

4. Track the progress of the backup job from the Job Controller window. For the

stand-alone drive, you are prompted to load a specific cartridge into the drive. If you are using a library, you will not receive this prompt. The system loads the tapes automatically and therefore the cartridges need to be labeled appropriately. This enables to locate the correct cartridge for a restore job, if necessary.

5. When the backup is complete, the Job Controller displays the text Completed. After running a backup, view the backup history to verify the backup data.


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The CommVault Simpana 9.0 incremental / differential Storwize V7000 Unified NDMP backup considerations

There are specific Storwize V7000 Unified NDMP environment variables, which are treated as parameters and can be passed to the NDMP server from data management applications performing NDMP backups. The following two parameters can be configured through data management applications.

• BACKUP_GROUP_NAME: This is the name of a backup group where all the backup directories within the backup group share the same Storwize V7000 Unified snapshot.

− Note 1: The way to set this environment variable is to have a line similar to the

following line in the backup policy: SET BACKUP_GROUP_NAME=NDMP_EXISTING_snap1

− Note 2: If the BACKUP_GROUP_NAME begins with NDMP_EXISTING, then it is

assumed that the Storwize V7000 Unified system is configured to use a snapshot, which has a name corresponding to this environment variable value. In this special case, it is also assumed that the user will delete the corresponding snapshot manually.

− Note 3: The maximum length of the backup group name is 32 characters

(inclusive of a possible NDMP_EXISTING).

• BACKUP_GROUP_EXPIRATION: This parameter helps to configure the amount of valid time that the snapshot is associated with BACKUP_GROUP_NAME. After the age of the snapshot has surpassed the expiration value, a new snapshot will be taken and all new NDMP backup sessions associated with BACKUP_GROUP_NAME will use the new snapshot. This Storwize V7000 Unified NDMP parameter is very important to effectively schedule incremental or differential backup which has less than 1 hour incremental and differential backup expiration schedule time.

− Note 1: The way to set this environment variables is to have a line similar to the

following line in the backup policy: SET BACKUP_GROUP_EXPIRATION = 1_DAY

− Note 2: The following values are acceptable for this environment variable:

• 0_SEC … 60_SEC • 0_MIN … 60_MIN • 0_HOUR … 168_HOUR • 0_ DAY … 31_DAY • 0_MONTH … 12_MONTH

− Note 3: If no value is given for the expiration, the default will be 1 hour. − Note 4: If the user wants to ensure that a separate snapshot is taken for every

directory, then an expiration value of 0_SEC should be specified.


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Initiating CommVault Simpana 9.0 incremental / differential Storwize V7000 Unified NDMP backup

Perform the following steps to initiate CommVault Simpana 9.0 incremental / differential Storwize V7000 Unified NDMP backup.

1. In the CommCell browser, right-click the newly-created subclient and click Backup.

2. In the Select Backup Type section, select either Incremental or Differential (as shown in Figure 67 and Figure 68 ) and click Advanced.

Figure 67: Specifying Incremental as the backup option


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Figure 68: Specifying Differential as the backup option


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3. On Data Path tab select the correct media agent, library, drive pool, and drive.

4. On NAS Option tab, specify the appropriate Storwize V7000 Unified NDMP incremental or differential parameters, as shown in the Figure 69.

Figure 69: Specifying advanced backup options

5. Track the progress of the backup job from the Job Controller window.

6. When the backup is complete, the Job Controller displays the status as Completed. After running a backup, view the backup history to verify the backup data.


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Scheduling CommVault Simpana 9.0 Storwize V7000 Unified NDMP backup

Perform the following steps to schedule a CommVault Simpana 9.0 Storwize V7000 Unified NDMP backup.

1. In the CommCell browser, right-click the newly-created subclient and click Backup.

2. In the Select Backup Type section, select appropriate backup type (as show in Figure 70) and from the Job Initiation section, select Schedule, and click Configure.

Figure 70: Scheduling Storwize V7000 Unified NDMP backup


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3. In the Schedule Details dialog box, enter an appropriate schedule name and configure the NDMP backup schedule. Click OK to continue, as shown in the Figure 71.

Figure 71: CommVault backup schedule dialog box

The Storwize V7000 Unified NDMP backup operation will run according to the specified schedule configuration.


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Viewing CommVault Simpana 9.0 NDMP backup history

Perform the following steps to view the CommVault Simpana 9.0 NDMP backup history.

1. In the CommCell browser, right-click the entity (client computer, iDataAgent, backup set, or subclient) whose backup history you want to view, and click View Backup History.

Figure 72: Viewing the backup history


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2. In the Backup History filter dialog box, select the filter options you want to apply and click OK, as show in the Figure 73.

Figure 73: Selecting the backup view filter options


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3. View the backup job history information that is displayed in CommVault Simpana 9.0

Figure 74: Backup job history information

Storwize V7000 Unified NDMP restore using CommVault Simpana 9.0 Using CommVault Simpana 9.0, you can restore NDMP backup data to Storwize V7000 Unified system, on both two-way Storwize V7000 Unified NDMP and three-way Storwize V7000 Unified NDMP configurations.

Direct Access Restore

Direct Access Restore optimizes the restore operation by allowing the NDMP client to directly access backed up data, anywhere in a tape set, without having to traverse the tape set sequentially. In a normal restore operation, a large portion of the data from the backup that included the file must be read. In a Direct Access Restore, only the portion of the tape which contains the data to be restored is read. This option is available for each of the Storwize V7000 NDMP restore types and can save significant time in the restore operation.

When to use Direct Access Restore

While each environment is different, with many variables that can affect restore efficiency (making it impossible to define when a Direct Access Restore can yield best performance), the following guidelines might be of assistance until you can evaluate the speed appropriately in a specific environment:

• Generally, the smaller the percentage of a given backup that are restoring, the greater will be the performance value of using Direct Access Restore. As the percentage rises above 30% to 40%, a non-Direct Access Restore becomes the preferred choice.

• A three-way restore involves more communication overhead between the library and the Storwize V7000 Unified system being restored, and thus sequentially reading the tape becomes the more-efficient choice sooner. Because of this, you might find that a non-Direct Access Restore is the preferred choice even when the percentage of a given backup being restored is under 30%.

Efficient non-Direct Access Restore

Even if you are not using direct access restores, it is still possible to optimize restore performance. For instance, if the most-recent copy of the data that you want to restore was backed up by an incremental or differential backup, the restore only reads the archive file


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from that differential or incremental backup, instead of reading the archive files back to the last full backup.

Browse and restore Storwize V7000 Unified NDMP backup with CommVault Simpana 9.0 Perform the following steps to browse and restore Storwize V7000 Unified NDMP backup with CommVault Simpana 9.0.

1. In the CommCell browser, right-click the subclient to restore from and click Browse

Backup Data, as shown in the Figure 75.

Figure 75: Browsing backup data

2. In the Browse Options dialog box, select Browse the Latest Data, and from the Use

MediaAgent list, select the appropriate media gent, and click OK.

Figure 76: The Browse Options dialog box


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3. Browse and select the appropriate files or an entire file set depending on the dataset to be restored and click Recover All Selected

4. Select the Use Direct Access Restore and Restore to Same folder check boxes and click OK

Figure 77: Setting the restore options


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5. From the agent's Restore Options and Advanced Restore Options dialog boxes, select the restore options to use. For agents with multiple tabs, do not click OK until you have specified the necessary options on all the tabs. If you accept all the default settings, you will be restoring the selected data to its original location.

6. After completing the restore selections, you can either start an immediate restore or schedule the restore. a. If you want to schedule the job, in the Restore Options dialog box, click the Job

Initiation tab, click Schedule, schedule the job, and then click OK. b. If you want to run the job immediately, click Run Immediately in the same tab and

then click OK.

Note: While the job is running, you can right-click the job in Job Controller and click Detail to view information on the job. After the data has been restored, you will see a job completion message in the Job Controller and Event Viewer.

7. Validate the Storwize V7000 Unified file system to make sure that the selected files have been correctly restored.


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Summary The Storwize V7000 Unified storage system has incorporated the NDMP technology and supports NDMP protocol version 4. Leveraging CommVault Simpana NDMP backup support, the Storwize V7000 Unified data files can seamlessly backup to the tape devices and perform restore from the tape device.

The IBM Storwize V7000 Unified system is a virtualizing Redundant Array of Independent Disks (RAID) storage system that supports both block protocols and file protocols. This unified system includes the IBM Storwize V7000 file module and the Storwize V7000 storage system.

The file module is a clustered system comprised of two units that provide file systems for use by network-attached storage. The file module uses the Storwize V7000 storage system to provide the file module with volumes. Other volumes, which are block volumes, are provided on the SAN to be presented to hosts.

This technical content is intended to be a reference guide for users who want to use CommVault Simpana for backing up files using NDMP protocol that are incorporated on Storwize V7000 Unified system. This technical report is not meant to be an implementation or solution guide. For details on actual implementation or solution design, refer to the documentation provided in the “Resources” section of this technical paper.


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Appendix A: Glossary • IBM Storwize V7000 Unified system – Built on IBM high-performance computing

experience, and designed to support both block and file storage protocols, Storwize V7000 Unified system provides the performance, high availability, single management interface, and functionality that are essential to address strategic storage requirements.

• Network Data Management Protocol (NDMP) – An industry standard protocol created

to ease the process of integrating backup and restore for NAS with data protection software such as NetBackup. The NDMP is the data transfer protocol and one piece of the overall data protection solution. For more information about the NDMP protocol and the NDMP standards group, visit http://www.ndmp.org/info/faq.shtml.

• Two-way (or remote) Storwize V7000 Unified NDMP – NDMP configuration supported

by Storwize V7000 Unified storage system. The two-way NDMP consists of an external data management application, such as CommVault Simpana, running on a server external to the Storwize V7000 Unified storage system. The data management application has some form of storage hierarchy such as a tape library or Tier 2 storage that it manages for storing of backuped data.

• Three-way Storwize V7000 Unified NDMP – NDMP configuration supported by

Storwize V7000 Unified storage system. In a three-way Storwize V7000 Unified NDMP configuration, an NDMP tape server is installed on a server external to the Storwize V7000 Unified storage system and separate from the system where CommVault Simpana data management application is running.

• CommVault Simpana – NDMP Data Management Application used to backup Storwize

V7000 Unified data, using Storwize V7000 Unified NDMP technology.

• Direct access recovery (DAR) – CommVault Simpana uses DAR to restore a directory or individual files from a backup image. DAR can greatly reduce the time it takes to restore files and directories. DAR is enabled by default (no configuration is required).

http://www.ndmp.org/info/faq.shtml


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Appendix B: Materials used in the lab setup Infrastructure component Vendor Quantity Details

DMA server IBM 1 IBM x3650 M3

Storage IBM IBM Storwize V7000 Unified storage system

Storwize V7000 Unified file modules – 2

Storwize V7000 storage system – 1

Network adapter (interface nodes)

Broadcom 2 Broadcom NetXtreme II BCM 5709 1000Base-T

Network adapter (DMA server)

Broadcom 2 Broadcom NetXtreme II BCM 5709 1000Base-T

Switch (DMA server back-end SAN)

IBM 1 IBM Switch Model 2498-B24

For more information, refer to IBM System Storage SAN24B-4 Express Switch at ibm.com/systems/storage/san/b-type/san24b-4/express/specifications.html

HBA QLogic 2 QLogic QLA 2432

Tape Library IBM 2 IBM TS3200 Tape Library Express Model

For more information, visit ibm.com/systems/storage/tape/ts3200/index.html

Software

IBM Storwize V7000 file module version 1.3.0.0

IBM Storwize V7000 Unified NDMP version 4

CommVault CommVault Simpana 9.0


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Appendix C: Resources These websites provide useful references to supplement the information contained in this paper:

• IBM Systems on IBM PartnerWorld® ibm.com/partnerworld/systems

• IBM Redbooks®

ibm.com/redbooks • IBM Publications Center

www.elink.ibmlink.ibm.com/public/applications/publications/cgibin/pbi.cgi?CTY=US

CommVault Simpana 9.0 documentation

• Getting Started – NAS NDMP iDataAgent: http://documentation.commvault.com/commvault/release_9_0_0/books_online_1/english_us/prod_info/nas_ndmp.htm


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About the author Udayasuryan Kodoly is a Storage Technology Specialist in IBM Systems and Technology Group (ISV Enablement) Organization. Uday has several years of experience on designing, architecting storage solutions, and developing solution best practices on various NAS and SAN appliance data protection (backup) solutions. Uday is an expert on virtualization technologies and the virtual machine data protection strategies. Presently, Uday is working on enabling various ISV backup, disaster recovery, and virtualization solutions for IBM SONAS and IBM Storwize V7000 storage system.

You can reach Uday at [email protected].


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Implementing an effective NDMP backup solution on IBM Storwize V7000 Unified system using CommVault Simpana

Documents

storwize v7000 ndmp

ndmp essentials

initiating commvault

launching commvault

types of commvault simpana

monitoring ndmp session

effective ndmp backup

drive configuration