NetBackup™ NAS Administrator's Guide

Last Published:
Product(s): NetBackup (10.1)
  1. Section I. About NAS backups
    1. Introduction
      1.  
        About NAS backups
      2.  
        Backups using NAS-Data-Protection policy
      3.  
        Backups using NDMP policy
  2. Section II. Using NAS-Data-Protection (D-NAS)
    1. D-NAS overview
      1.  
        Dynamic data streaming for D-NAS Policy
      2.  
        Understanding the features of D-NAS
      3.  
        Dynamic streaming parameters
      4.  
        Limitations and considerations
    2. Pre-requisites for D-NAS configuration
      1.  
        Prerequisites for D-NAS configuration
      2.  
        Domain user requirement for SMB share backups
      3.  
        Minimum supported backup host versions for different features
      4.  
        Configuring a backup host pool
      5.  
        Configuring storage lifecycle policies
    3. Configure D-NAS policy for NAS volumes
      1.  
        Configure D-NAS policy for NAS volumes
      2.  
        Setting up a NAS-Data-Protection policy
      3.  
        Ordering of backup from snapshot jobs
      4.  
        About mixed mode volumes
    4. Using accelerator
      1.  
        Accelerator for D-NAS
      2.  
        About the track logs for accelerator
      3.  
        Track log sizing considerations
      4.  
        Notes on accelerator for D-NAS
    5. Replication using D-NAS policy
      1.  
        Replication using D-NAS policy
    6. Restoring from D-NAS backups
      1.  
        Restoring from D-NAS backups
      2.  
        Original location restores for D-NAS Policy
      3.  
        Point in time rollback
    7. Troubleshooting
      1.  
        Troubleshooting
      2.  
        Setting the log level
      3.  
        Logging directories for Linux platforms
      4.  
        Logging folders for Windows platforms
      5.  
        Restore from a snapshot fails with status 133
      6.  
        Backup from snapshot fails with error 50
      7.  
        Backup from snapshot parent job fails with error 4213: Snapshot import failed
      8.  
        Backup host pool creation fails with the error "Failed to fetch host list"
      9.  
        Snapshot job fails and the snapshot command does not recognize the volume name
      10.  
        Accelerator enabled incremental backup of NetApp NAS volume
      11.  
        Snapshot method: Auto
  3. Section III. Section 3
    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.  
        Adding the NetBackup for NDMP license key on UNIX servers
      3.  
        Adding the NetBackup for NDMP license key on Windows servers
      4.  
        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
      10.  
        About environment variables in the backup selections list
      11.  
        About appropriate host selection for NetApp cDOT backup policies
      12.  
        About backup types in a schedule for an NDMP policy
      13. About enabling or disabling DAR
        1.  
          Disabling DAR for file and directory restores
        2.  
          Disabling DAR for directory restores only
      14.  
        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) with NetBackup for NDMP
      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.  
        Performing a manual backup with an NDMP policy
      2.  
        Perform an NDMP restore
    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.  
          TLD 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)

Accelerator enabled incremental backup of NetApp NAS volume

Accelerator enabled NAS-Data-Protection policy backups complete volume instead of only the incremental data. This also affects the run optimization.

This issue occurs under the following conditions:

  • The policy type is NAS-Data-Protection.

  • In the policy's Snapshot options, the value of Access Protocol is Default or NFS3.

  • Backup selection has NetApp NAS volumes.

The Accelerator technology optimizes a backup by sending only changed blocks over a network for backup. A two-step process is used to identify the changed files and changed blocks in these files. File attributes and index node (inode) are the key parameters to identify a change. If the files are accessed over NFS version 3, a file on NetApp NAS volume behaves different because of the inode numbers. Same file has different inode numbers across snapshots of the volume if accessed over NFS3. All schedules of backup are based on the snapshot that is created for the run of the policy. A new snapshot with different inode numbers than the previous ones makes accelerator to identify these files as new files. Because of this issue, all files are backed up instead of incremental data only.

To resolve this issue, avoid using NFS version 3 to access the snapshot for accelerator-enabled backups. You can change the Access Protocol to NFS4 for the affected policy. For more details, refer to the NetApp documentation.