The following interactions occur between NetBackup for SQL Server and other software components:

• Every backup or restore operation is initiated through dbbackex.exe, in one of the following ways:

  • Scheduled backups

    The NetBackup scheduler calls bphdb (1), which calls dbbackex (2).

  • GUI-initiated backups

    dbbackup.exe invokes dbbackex.exe (3).

  • Command line

    dbbackex.exe is invoked directly from a command line or third-party tool.

• Dbbackex.exe makes function calls to dbbackmain.dll (4) to facilitate a backup or a restore operation. The operation is carried out as dbbackmain.dll facilitates one or more data streams between SQL Server and NetBackup server. The data stream (7) is established through VDI (5) and the XBSA interface (6). VDI interacts with SQL Server whereas XBSA interacts with the NetBackup database client.

• The NetBackup for SQL Server GUI (dbbackup.exe) lets you browse for SQL Server objects, normally, databases, filegroups, and database files. dbbackup.exe invokes dbbackmain.dll (8) for accessing the SQL Server master database. NetBackup for SQL Server accesses information about SQL Server through ODBC.

• The NetBackup for SQL Server GUI (dbbackup.exe) also lets you browse for SQL backup images. The NetBackup catalog contains the images you can browse. To access the contents of the catalog the GUI invokes dbbackmain.dll, which uses VxBSA function calls to access the NetBackup server database manager.