Veritas NetBackup™ for NDMP Administrator's Guide

Last Published:
Product(s): NetBackup (8.2, 8.1.2)
  1. Introduction to NetBackup for NDMP
    1. About NetBackup for NDMP
      1.  
        NetBackup for NDMP features
      2.  
        NetBackup for NDMP terminology
    2.  
      About Network Data Management Protocol (NDMP)
    3. Types of NDMP backup
      1.  
        NDMP local backup
      2.  
        NDMP three-way backup
      3.  
        Backup to Media Manager storage units (remote NDMP)
    4.  
      About NDMP policies in NetBackup
    5.  
      About NetBackup storage units
    6. About assigning tape drives to different hosts
      1.  
        About robotics control
    7.  
      About the NDMP backup process
    8.  
      About the NDMP restore process
    9.  
      About Direct Access Recovery (DAR)
    10.  
      Snapshot Client assistance
    11.  
      About NDMP multiplexing
    12.  
      About NDMP support for Replication Director
    13.  
      Limitations of Replication Director with NDMP
    14.  
      About NDMP support for NetApp clustered Data ONTAP (cDOT)
  2. Installation Notes for NetBackup for NDMP
    1.  
      NetBackup for NDMP installation prerequisites
    2.  
      About existing NetApp cDOT configurations before you upgrade
  3. Configuring NDMP backup to NDMP-attached devices
    1.  
      About configuring NDMP-attached devices
    2.  
      Authorizing NetBackup access to a NAS (NDMP) host
    3.  
      About access for three-way backups and remote NDMP
    4. About Media and Device Management configuration
      1.  
        Adding a robot directly attached to an NDMP host
      2.  
        Adding a tape drive
      3.  
        Checking the device configuration
    5.  
      Using the Device Configuration Wizard to configure an NDMP filer
    6.  
      About adding volumes
    7.  
      About verifying NDMP password and robot connection
    8.  
      Adding NDMP storage units
    9. About creating an NDMP policy
      1.  
        Attributes tab options for an NDMP policy
      2.  
        Schedules tab options for an NDMP policy with Accelerator for NDMP enabled
      3.  
        Clients tab options for an NDMP policy
      4. Backup selection options for an NDMP policy
        1.  
          Wildcard characters in backup selections for an NDMP policy
        2.  
          ALL_FILESYSTEMS and VOLUME_EXCLUDE_LIST directives
      5.  
        About environment variables in the backup selections list
      6.  
        About appropriate host selection for NetApp cDOT backup policies
      7.  
        About backup types in a schedule for an NDMP policy
    10. About enabling or disabling DAR
      1.  
        Disabling DAR for file and directory restores
      2.  
        Disabling DAR for directory restores only
    11.  
      Configuring NetBackup for NDMP in a clustered environment
  4. Configuring NDMP backup to NetBackup media servers (remote NDMP)
    1.  
      About remote NDMP
    2.  
      Configuring NDMP backup to Media Manager storage units
  5. Configuring NDMP DirectCopy
    1. About NDMP DirectCopy
      1.  
        Prerequisites for using NDMP DirectCopy
      2.  
        NDMP DirectCopy with VTL
      3.  
        NDMP DirectCopy without VTL
    2.  
      Configuring NDMP DirectCopy
    3. Using NDMP DirectCopy to duplicate a backup image
      1. Requirements to use NDMP DirectCopy for image duplication
        1.  
          NetBackup policy type for image duplication
      2.  
        Initiating NDMP DirectCopy with the NetBackup Administration Console
  6. Accelerator for NDMP
    1.  
      About NetBackup Accelerator for NDMP
    2. About the track log for Accelerator for NDMP
      1.  
        How to redirect track logs for Accelerator for NDMP
    3.  
      Accelerator messages in the NDMP backup job details log
    4.  
      NetBackup logs for Accelerator for NDMP
  7. Remote NDMP and disk devices
    1.  
      About remote NDMP and disk devices
    2.  
      Configuring remote NDMP
  8. Using the Shared Storage Option (SSO)
    1.  
      About the Shared Storage Option (SSO) with NetBackup for NDMP
    2.  
      Setting up SSO with NetBackup for NDMP
    3.  
      Using the NetBackup Device Configuration Wizard for NDMP hosts
  9. Backup and restore procedures
    1.  
      About NDMP backups and restores
    2.  
      Performing a manual backup with an NDMP policy
    3.  
      Performing an NDMP restore from the server
  10. Troubleshooting
    1. About NetBackup for NDMP logs
      1.  
        Viewing NetBackup for NDMP logs
      2.  
        NDMP backup levels
    2.  
      General NetBackup for NDMP operating notes and restrictions
    3. NetBackup for NDMP troubleshooting suggestions
      1.  
        Troubleshooting NDMP media and devices on Windows
      2.  
        Troubleshooting NDMP media and devices on UNIX
      3.  
        Troubleshooting NDMP DirectCopy
      4.  
        Troubleshooting Direct Access Recovery (DAR) with NetBackup for NDMP
    4. About robot tests
      1.  
        TL8 robot test example for Windows
      2.  
        TLD robot test example for UNIX
      3.  
        TLH robot test example for UNIX
  11. Using NetBackup for NDMP scripts
    1.  
      About the NetBackup for NDMP scripts
    2.  
      ndmp_start_notify script (UNIX)
    3.  
      ndmp_start_notify.cmd script (Microsoft Windows)
    4.  
      ndmp_end_notify script (UNIX)
    5.  
      ndmp_end_notify.cmd script (Microsoft Windows)
    6.  
      ndmp_start_path_notify script (UNIX)
    7.  
      ndmp_start_path_notify.cmd script (Microsoft Windows)
    8.  
      ndmp_end_path_notify script (UNIX)
    9.  
      ndmp_end_path_notify.cmd script (Microsoft Windows)
    10.  
      ndmp_moving_path_notify script (UNIX)
    11.  
      ndmp_moving_path_notify.cmd script (Microsoft Windows)

About NDMP multiplexing

NDMP multiplexing concurrently writes multiple backup streams to the same tape storage device from the same client or different clients. NDMP multiplexing supports only remote NDMP and improves overall NetBackup performance by better using tape storage devices. State-of-the-art tape storage devices can typically stream data faster than client agents can create backup streams. Therefore multiple data streams can be sent to and effectively processed by a given tape storage unit.

A network-attached storage (NAS) device with an NDMP server is an agent that produces a backup stream that is similar to a NetBackup client. Multiplexing is desired for NDMP backups because NAS devices are limited in the rate at which they create backup streams. These backup streams are often much slower than the tape storage device consuming and writing the stream.

NDMP multiplexing provides the following benefits:

  • Several backups can be run at the same time writing to the same tape. This process can reduce the need for many tape devices.

  • Backup time is reduced by writing concurrent backups to a single tape storage device.

  • Many tape storage devices require that data is streamed to them at high transfer rates. When data is not streamed fast enough, they do not work efficiently and are subject to possible excessive wear.

Consider the following general items when implementing NDMP multiplexing:

  • Only media manager tape storage units can be used for NDMP multiplexing.

  • Multiplexing of NDMP backups and restores supports only remote NDMP. The remote NDMP processes backup streams by going through the media server.

  • NDMP local and NDMP three-way backups and restores are not supported for NDMP multiplexing. Each method processes backup streams without going through the media server.

  • Synthetic backups are not supported.

  • Only tape devices are supported.

  • Disk storage devices are not supported.

  • A mix of NDMP and non-NDMP backups can be present in the same MPX backup group.

  • File and directory DAR are allowed.

  • NDMP multiplexing works with both VTL and PTL. However, VTL users typically do not use NDMP multiplexing because they can add more virtual tape devices to accommodate additional streams.

  • For NDMP multiplexed backups the storage unit and policy schedule multiplex value must be set to a value greater than one.