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

Disk recovery in cross-domain replication DR environment

If the disk technology being used does not support Auto Image Replication, an alternative approach is simply to replicate the entire storage and then use a combination of catalog recovery and the nbcatsync utility to populate the catalog at the disaster recovery location.

The nbcatsync utility facilitates replication even if disk media IDs recorded at the EMM database and at the metadata component of the image database are different. The nbcatsync utility aligns the disk media IDs in the image database metadata with the media IDs in the disaster recovery domain's EMM database. The regular backups and catalog backups that are made at the production site are written to the replicating disk storage. The catalog backup's disaster recovery file is sent to the disaster recovery domain.

The nbcatsync utility is supported on all primary server platforms. You can use it with all AdvancedDisk types supported by NetBackup.

To recover a disk in a cross-domain replication DR environment

  1. Sign in to the DR domain's primary server.
  2. Align the disk media ID information in the catalog backup's DR file with the disk media ID information in the DR domain's EMM database. Run the following command:

    nbcatsync -sync_dr_file <DR file name>

  3. Perform a partial catalog recovery from the replicated catalog backup. Run the following command:

    bprecover -wizard

    When you are prompted "Do you want to recover the entire NetBackup catalog? (Y/N)", enter N.

  4. Run the cat_export - all to export the metadata from the replicated database backup.
  5. Run the command cat_import - all to import the exported metadata into the active database.
  6. Align the disk media IDs associated with the image records recovered by the partial catalog recovery with the disk media IDs present in the DR domain. Run the following command:

    nbcatsync -backupid <restored catalog backup ID>