NetBackup™ in Highly Available Environments Administrator's Guide

Last Published:
Product(s): NetBackup & Alta Data Protection (10.2)
  1. About in this guide
    1.  
      What's in this guide
    2.  
      Documents related to NetBackup in highly available environments
  2. NetBackup protection against single points of failure
    1. Protecting against component failures
      1.  
        Network link failures
      2. Storage device connection failures
        1.  
          SAN connection failures
        2.  
          Robotic control connection failures
      3.  
        Storage device failure
      4.  
        Media availability failures
      5.  
        Primary server failures
      6. Media server failures
        1.  
          Dedicated media server failures
        2.  
          Non-dedicated media servers failures
        3.  
          SAN media server failures
        4.  
          Restoring tape backups using an alternative media server
        5.  
          Restoring disk backups using an alternative media server
      7.  
        LAN client failures
      8.  
        SAN client failures
    2.  
      Site failures
    3.  
      Protecting the catalog in highly available environments
  3. About site disaster recovery with catalog backup and recovery
    1.  
      Disaster recovery packages
    2. About catalog recovery
      1.  
        About full catalog recovery
      2.  
        Performing full catalog restore
      3.  
        Making the DR environment consistent after a full catalog restore
      4.  
        About partial catalog recovery
      5.  
        Performing a partial catalog restore
      6.  
        Making the DR environment consistent after a partial catalog restore
    3. About disk recovery in DR domain
      1.  
        Disk recovery in single-domain replication DR environment
      2.  
        Auto Image Replication
      3.  
        Disk recovery in cross-domain replication DR environment
  4. About site loss protection with auto image and catalog replication
    1.  
      About Auto Image Replication (AIR)
    2. About NetBackup catalog replication
      1.  
        About conditions for support of replicated NetBackup catalogs
      2.  
        About catalog synchronization
      3. About multi-site single domain replication
        1.  
          About multi-site single domain with stretched SAN
        2.  
          About multi-site single domain with optimized duplication
      4. About multi-site cross domain replication
        1.  
          About multi-site cross domain and BasicDisk storage
        2.  
          Planning a cross domain replication disaster recovery domain
      5. About full catalog replication
        1.  
          Recovering the catalog with full catalog replication
        2.  
          Making the DR environment consistent with full catalog replication
      6. About partial catalog replication
        1.  
          Preparing an environment for partial catalog replication
        2.  
          Recovering the environment with partial catalog replication
        3.  
          Making the disaster recovery environment consistent with partial catalog replication
        4.  
          Considerations for managing tapes with partial catalog replication
  5. Deploying NetBackup primary servers with full catalog replication
    1.  
      About replication considerations
    2. About non-clustered NetBackup primary server with catalog replication
      1. Installing and configuring non-clustered NetBackup primary server with catalog replication
        1.  
          Installing and configuring the main NetBackup primary server
        2.  
          Installing and configuring an alternate NetBackup primary server
        3.  
          Upgrading NetBackup primary server in a non-clustered replicated configuration
    3. About globally clustered NetBackup primary servers with catalog replication
      1. Installing and configuring a globally clustered NetBackup primary server with catalog replication
        1.  
          About clustering considerations
        2.  
          Installing and configuring the main NetBackup primary server cluster
        3.  
          Installing and configuring an alternate NetBackup primary server cluster
      2.  
        Populating the server tables in the NetBackup database
      3.  
        Upgrading NetBackup in a clustered replication configuration
      4.  
        Failing over to an alternate primary server cluster
      5.  
        Testing the NetBackup primary server cluster in clustered replication environment
  6. Using NetBackup to perform backups and restores in a cluster
    1. About backups and restores with NetBackup in a cluster
      1.  
        Performing user-directed backups with NetBackup in a cluster
      2. About restoring data in a cluster
        1.  
          Example: Performing a user-directed restore in a NetBackup cluster
    2.  
      About supported NetBackup application agents in a cluster

About partial catalog recovery

Auto Image Replication (A.I.R.) is recommended to duplicate backups across multi-domain configurations. Partial catalog recovery may be used for this purpose in situations where A.I.R. is not an option.

Partial catalog recovery recovers only the flat file components and not the database. This way the details of the existing infrastructure (servers, devices etc.) at the DR site are not lost during the recovery process. It also means that the media server information that is associated with the backups is not recovered. The media server must be manually added to the database and is unassigned. Ensure that the media servers are placed in a pool where they cannot get accidentally overwritten.

Partial catalog recovery has the following advantages over full catalog recovery:

  • No elements of the configuration need to be removed or rediscovered. The recovery process does not affect the general configuration of the DR environment.

  • It does not affect the server topology. The primary server topology at the DR site does not need to reflect the topology at the production site. Thus, a catalog backup from a clustered primary server can be restored to a standalone primary server at the DR site.

  • The DR site can be a production site, provided the client names, backup policy names, and tape label ranges used in the two environments are unique. Also, it must be possible to do a partial recovery to another production backup domain.

With partial catalog recovery, you cannot recover the tape information from the main site at the DR site. Ensure that the tapes are not accidentally overwritten. These tapes must not be easily used for backups at the DR site.