Veritas NetBackup™ in Highly Available Environments Administrator's Guide

Last Published:
Product(s): NetBackup (8.2)
Platform: Linux,UNIX,Windows
  1. NetBackup protection against single points of failure
    1. About protecting against component failures
      1.  
        About protecting against network link failures
      2. About protecting against storage device connection failures
        1.  
          About protecting against SAN connection failures
        2.  
          About protecting against robotic control connection failures
      3.  
        About protecting against storage device failure
      4.  
        About protecting against media availability failures
      5.  
        About protecting against master server failures
      6. About protecting against media server failures
        1.  
          About protecting against dedicated media server failures
        2.  
          About protecting against non-dedicated media servers failures
        3.  
          About protecting against SAN media server failures
        4.  
          Restoring tape backups using an alternative media server
        5.  
          Restoring disk backups using an alternative media server.
      7.  
        About protecting against LAN client failures
      8.  
        About protecting against SAN client failures
    2.  
      About protecting against site failures
    3.  
      About protecting catalog in highly available environments
  2. 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 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
  3. 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
  4. Deploying NetBackup master servers with full catalog replication
    1.  
      About replication considerations
  5. 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
      1.  
        About backing up database files in a cluster
      2.  
        About user backups
      3.  
        About NetBackup client 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 master server platforms. You can use it with all Advanced Disk types supported by NetBackup.

To recover disk in a cross-domain replication environment in the event of a disaster, perform the following steps on the DR domain's master server:

  1. 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. For this, run the following command:

    nbcatsync -sync_dr_file <DR file name>

  2. Perform a partial catalog recovery from the replicated catalog backup by running the command,

    bprecover -wizard

  3. Run the command cat_export - all - staging to export the metadata from the replicated relational database backup.
  4. Run the command cat_import - all to import the exported metadata into the active relational database.
  5. 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. For this, run the command

    nbcatsync -backupid <restored catalog backup ID>