Forum Discussion

H_Sharma's avatar
H_Sharma
Level 6
11 years ago

NBDB VS Relational Database VS EMM Database

Hi Experts, Pls let me know the difference among the below three. NBDB VS Relational Database VS EMM Database/Server? Thanks,
7.1.x and Earlier
Backing Up
Backup and Recovery
Basics
NetBackup
Windows Server (2003-2008)
  • Deb_Wilmot's avatar
    Deb_Wilmot
    11 years ago

    NBDB, Releational Database and EMM Database are all really the same thing.  They are all the Sybase database  instance housed in /usr/openv/db/data (default on UNIX) or <install_path>\Veritas\NetBackupdb\Data (default windows).

    This has been a confusing topic as the newer versions are released, as with the release of 6.0 (ages ago) it was refered to most commonly as the 'EMM Database'.   Most likely this came about as it was possible to house the database on a unique entity and service more than one master (no longer supported).  This was frequently refered to as the EMM Server. 

    As more information was added into the database, the term "EMM Database" wasn't really that accurate anymore. Relational Database was used often (as SQL is a relation database :)). as was NBDB (for NetBackup DataBase).  In the latest versions there is a movement to modify documentation to reflect NBDB (for NetBackup DataBase) for any references to the Sybase database instance on each master server.

    AND if you hear the term NetBackup catalog, that's a bit different.  This is typically the <install_path>\Veritas\NetBackup\db  (Windows) or /usr/openv/netbackup/db/ (Unix).

     

    Hopefully this makes some amount of sense.

     

Deb_Wilmot's avatar
Deb_Wilmot
Level 6
11 years ago

NBDB, Releational Database and EMM Database are all really the same thing.  They are all the Sybase database  instance housed in /usr/openv/db/data (default on UNIX) or <install_path>\Veritas\NetBackupdb\Data (default windows).

This has been a confusing topic as the newer versions are released, as with the release of 6.0 (ages ago) it was refered to most commonly as the 'EMM Database'.   Most likely this came about as it was possible to house the database on a unique entity and service more than one master (no longer supported).  This was frequently refered to as the EMM Server. 

As more information was added into the database, the term "EMM Database" wasn't really that accurate anymore. Relational Database was used often (as SQL is a relation database :)). as was NBDB (for NetBackup DataBase).  In the latest versions there is a movement to modify documentation to reflect NBDB (for NetBackup DataBase) for any references to the Sybase database instance on each master server.

AND if you hear the term NetBackup catalog, that's a bit different.  This is typically the <install_path>\Veritas\NetBackup\db  (Windows) or /usr/openv/netbackup/db/ (Unix).

 

Hopefully this makes some amount of sense.