RDF System Management Manual for H-Series and J-Series RVUs (RDF 1.9)

TMF Subsystem Running Previously
If TMF was running on the primary system and you have shut the TMF subsystem down, and
if you have started TMF on the backup system and added the RDF updater volumes to the TMF
configuration, you need not take any other steps with respect to TMF. Proceed to the next task,
described in “Initializing RDF”.
Initializing and Configuring RDF
After initializing and configuring TMF, you are ready to initialize and configure RDF.
Initializing RDF
To initialize RDF, you issue an INITIALIZE RDF command at the primary system. When executed,
this command:
• Establishes new configuration and context files for the new RDF configuration (that resides
in the control subvolume)
• Identifies the backup system in the configuration
• Establishes a starting location in the audit trail where each configured extractor commences
reading audit.
The INITIALIZE RDF command also establishes the name of the RDF control subvolume, which
you must subsequently specify when initiating RDFCOM sessions. If you enter this command
for an RDF configuration that already exists, you must explicitly purge the configuration files
and context files from the control subvolumes on both the primary and backup systems; otherwise,
an error message will appear. This requirement helps ensure that you do not accidentally destroy
the wrong RDF configuration in cases where multiple RDF configurations exist for replication
to multiple backup systems.
NOTE: Previously you were required to purge the RDF control subvolumes on the primary
and backup systems before you could run the RDFCOM Initialize RDF command (see details on
RDF control subvolume in Chapter 4 (page 99)). You can now specify a special option that
automatically purges the existing control subvolume on the primary and backup system as part
of the RDF initialization command. For complete information on INITIALIZE RDF, see Chapter 8
(page 187).
If you are going to replicate database changes to multiple backup systems, you must also specify
a one-character control subvolume suffix in the INITIALIZE RDF command for individual
configurations. If you specify a suffix character, the control subvolume name is the name of the
primary system without the backslash and with the suffix character appended to it. If you omit
the suffix character, the control subvolume name is the name of the primary system without the
backslash and without a suffix character.
As a general rule, you can only issue the INITIALIZE RDF command if all of the following
conditions exist:
• TMF is initialized.
• RDF is not running.
• You are logged on under TACL as a member of the super-user group.
• You have a remote password from the primary system to the backup system. (It is
recommended, but not required, that you have a remote password from the backup system
to the primary system as well.)
For complete information about the INITIALIZE RDF command, see the description of the
INITIALIZE RDF command in Chapter 8 (page 187).
Initializing and Configuring RDF 79