-START DDF command (Db2)

The -START DDF starts the distributed data facility (DDF) if it is not already started.

Abbreviation: -STA DDF

Environment for -START DDF

This command can be issued from a z/OS® console, a DSN session under TSO, a DB2I panel (DB2 COMMANDS), an IMS or CICS® terminal, or a program using the instrumentation facility interface (IFI).

Data sharing scope: Member

Authorization for -START DDF

To execute this command, you must use a privilege set of the process that includes one of the following authorities:
  • SYSOPR authority
  • SYSCTRL authority
  • SYSADM authority

Db2 commands that are issued from a logged-on z/OS console or TSO SDSF can be checked by Db2 authorization using primary and secondary authorization IDs. Start of changeA logged-on z/OS user ID must be defined in RACF or a similar security server.End of change

Syntax for -START DDF

Read syntax diagramSkip visual syntax diagramSTART DDF

Usage notes for -START DDF

The START DDF command activates the DDF interface to VTAM® and TCP/IP. When this command is issued after STOP DDF MODE(SUSPEND), suspended threads are resumed and DDF activity continues.

Examples for -START DDF

Start the distributed data facility. 
-START DDF