TSM_NDMP_FINALDRAFT

IBM Software Services for Tivoli

IBM Tivoli Support Technical Exchange Web Seminar:

NDMP Configuration for use with Tivoli Storage Manager

2IBM Software Services for Tivoli

Table of Contents

1. Overview of NDMP

2. NDMP Backup Configuration

3. Configuring Virtual Filespaces

4. Configuring NDMP Filer to Server Backups

5. Common Problems and Hints for Backups

6. Common Problems and Hints for Restores


Overview of NDMP

•The Network Data Management Protocol is an open standard protocol

•NDMP deals with the relationship between backup applications and filers


Overview of NDMP (cont)

•Filers run operating systems similar to UNIX

•Netapp filers run DATA ONTAP

•EMC filers run DART

•Filers accept various different types of connections


Overview of TSM and NDMP

•TSM 5.3 supports typical NDMP setup which sends data from a filer to a library in different setups (all of which are described in detail in the TSM Administrator’s Guide)

TSM 5.4 supports 3-WAY NDMP backup•Typical NDMP setup is still used in 5.4, but 3-WAY NDMP is used in certain circumstances


TSM 5.3 NDMP backup configuration setup


TSM 5.3 NDMP backup configuration setup (cont)

• Step 1. Setting Up Tape Libraries for NDMP Operations

• Step 2. Configuring Tivoli Storage Manager Policy for NDMP

Operations • Step 3. Registering NAS Nodes with the Tivoli Storage Manager Server

• Step 4. Defining a Data Mover for the NAS File Server

• Step 5. Defining a Path to a Library

• Step 6. Defining Tape Drives and Paths for NDMP Operations

• Step 7. Labeling Tapes and Checking Tapes into Library

• Step 8. Scheduling NDMP Operations

• Step 9. Defining Virtual File Spaces


Step 1. Setting Up Tape Libraries for NDMP Operations

1. Set up the tape library and media.

• Supported library types• SCSI (TSM server controls robotics directly or by passing SCSI

commands through NAS device)• ACSLS• 349x (Requires NAS vendor support in NDMP server )

a. Attach the SCSI library to the NAS file server or to the Tivoli Storage Manager server, or attach the ACSLS library or 349X library to the Tivoli Storage Manager server.

b. Define the library with a library type of SCSI, ACSLS, or 349X.

c. Define a device class for the tape drives.


Step 2. Configuring TSM Policy for NDMP Operations

•DEFINE DOMAIN

•DEFINE POLICY SET

•DEFINE MGMTCLASS

•DEFINE COPYGROUP

•DEFINE STGPOOL

POLICY DOMAIN

POLICY SET

MANAGEMENT CLASS

COPY GROUP


Step 3. Registering NAS Nodes with the TSM Server

•REGISTER NODE NASNODE NASPASS DOMAIN=NASDOMAIN TYPE=NAS

Step 4. Defining a Data Mover for the NAS File Server

•DEFINE DATAMOVER NASNODE TYPE=NAS HLADDRESS=NETAPP2 LLADDRESS=10000 USERID=ROOT PASSWORD=ADMIN DATAFORMAT=NETAPPDUMP


Step 5. Defining a Path to a Library and Drives

•Define a path to the SCSI library from either the Tivoli Storage Manager or the NAS file server.

DEFINE PATH NASNODE NASLIB SRCT=DATAMOVER DESTT=LIBRARY DEVICE=mc0

•The value of the DEVICE parameter is the special file name for the tape library as it is known to the NAS file server. See Obtaining Special File Names for Path Definitions. ( Next slide)


Step 5. Defining a Path to a Library and Drives (cont.)

Obtaining Special File Names for Path Definitions

To display the device names for tape libraries, issue the following command to the NAS filer:

sysconfig –m

To display the device names for tape drives, issue the following command to the NAS filer:

sysconfig -t


Step 6. Defining Tape Drives and Paths for NDMP

1.Define a drive named NASDRIVE for a library named NASLIB

DEFINE DRIVE NASLIB NASDRIVE ELEMENT=117

2. Define a path for the drive:

DEFINE PATH NASNODE NASDRIVE SRCT=DATAMOVER LIBRARY=NASLIB DEVICE=rst01


Step 7. Labeling Tapes and Checking Tapes into Library

•You must label the tapes and check the tapes into the tape library. These tasks are the same as for other libraries.

Step 8. Scheduling NDMP Operations

•You can schedule the backup or restore of images produced by NDMP operations by using administrative schedules that process the BACKUP NODE or RESTORE NODE administrative commands.


Step 9. Defining Virtual Filespaces

Server Virtual filespace definitions are used to reference NAS directory

paths. A virtual filespace definition is used just like a NAS filespace.

•Example:

VFS Name represents Full path to Directory on NAS device

/NasDir represents /vol/vol2/home


Configuring Virtual Filespaces

Virtual filespaces definitions provide the following

advantages:

• A file system backup can be partitioned among several NDMP backup operations and multiple tape drives.

• You can also use different backup schedules to back up sub-trees of a file system.

• Backup and restore times will be reduced• Provides more flexibility in configuring your NAS

backups• Virtual filespaces provide a mechanism for the

server to manage NAS directory level backups just like NAS filespaces


Configuring Virtual Filespaces (cont.)

•Virtual Filespace Notes:

•The virtual file space name cannot be identical to any file system on the NAS node.

•NDMP Component only “sees” full NAS directory path not the VFS name.

•VFS names can be used wherever NAS filespace names are used such as in:

BACKUP NODE, RESTORE NODE, QUERY TOC,

QUERY NAS BACKUP, QUERY FILESPACE


Configuring Virtual Filespaces (cont)

•Server commands related to Virtual Filespaces and NDMP

• DEFINE VIRTUALFSMAPPING

• DELETE VIRTUALFSMAPPING

• QUERY VIRTUALFSMAPPING

• UPDATE VIRTUALFSMAPPING


Configuring NDMP Filer to Server Backups


Configuring NDMP Filer to Server Backups

This is also known as “3-way NDMP Backup”

1. Set up a native storage pool DEFINE STGPOOL NASPOOL DISK FORMATSIZE=100G 2. Set the copy destination to the storage pool

UPDATE COPYGROUP STANDARD STANDARD STANDARD DESTINATION=NASPOOL TOCDESTINATION=NASPOOL

3. Activate the associated policy set

ACTIVATE POLICYSET STANDARD STANDARD


Configuring NDMP Filer to Server Backups ( Cont.)

4. Set up a node for the NAS device.

• REGISTER NODE NASNODE NASPASS DOMAIN=NASDOMAIN TYPE=NAS

5. Set up a datamover for the NAS device.

• DEFINE DATAMOVER NASNODE TYPE=NAS HLADDRESS=NETAPP2 LLADDRESS=10000 USERID=ROOT PASSWORD=ADMIN DATAFORMAT=NETAPPDUMP


Configuring NDMP Filer to Server Backups (Cont.)

There are several advantages to sending data via

NDMP backup directly over the LAN to the Tivoli Storage

Manager server.

• There are fewer library and device restrictions

• You can also backup NAS images to disk.

• Migration, Reclamation, Backup Storage Pool and

Disaster Recovery module can now be used for Nas

data,


Common problems and hints for NAS backups

• The filer can be backed up 2 different ways:

1. Backup using DSMC (the TSM command-line client). The TOC option can be used with this command.

2. Backup using BACKUP NODE from DSMADMC (the TSM administrative client).


Common problems and hints for NAS backups (cont.)

• A TOC is stored in the TOCDESTINATION and can be used later for file-level restore and file-level browsing

• NAS Backups pin the recovery log until completion



•There are a few common problems that can be experienced when running NAS backups.

•ANR1104 Operation process process ID terminated - NDMP session errors encountered.

•Investigate TSM and NDMP logs for a root cause



•09:22:29.127 [54][output.c][6273]: ANR0102E tocbuild.c(946): Error 1 inserting row in table "NDMP.Image.Contents(TEMP)".~

•http://www-1.ibm.com/support/docview.wss?uid=swg21223424

•Install SNAPSURE for EMC or another open-file utility for NETAPP or another vendor


Common problems and hints for NAS restores

• As with NDMP backup, there are 3 different methods for restore:

1. Webclient – The webclient can be used to restore images or for file-level restore. Since TSM supports DAR, but not DDAR, file-level restore of directories will exhibit slow performance


Common problems and hints for NAS restores (cont.)

2. RESTORE NODE – This command can be used to restore images or for file-level restore. File-level restore performance will be poor because DAR will not be used.

3. RESTORE NAS – This command can only restore images and is issued by DSMC (TSM command-line client)


Where to Find More Information:

• More information can be found in the following locations:

• Chapter 7 of the Tivoli Storage Manager Administrator’s Guide

• http://publib.boulder.ibm.com/infocenter/tivihelp/v1r1/topic/com.ibm.itsmcw.doc/anrwgd54178.htm#nscfg

• www.ndmp.org• www.netapp.com• www.emc.com


Q&A:

The operator will instruct you on how to ask your questions of the

presenters.

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TSM_NDMP_FINALDRAFT