RDF System Management Manual for H-Series RVUs (RDF 1.8)

suffix-character
is an alphanumeric character to be appended to the primary system name to form the RDF
control subvolume name. If you omit the SUFFIX parameter, the default control subvolume
name is the name of the primary system with no suffix character.
TIMESTAMP<day><mon><year><hour>:<min>
causes RDF to initialize at the specified time, which must correspond exactly to the time of
a TMF shutdown.
NOTE: There is no space between day, month, and year. The seconds must not be included
in the timestamp.
day
is a number from 1 to 31.
month
is the first three letters of the month, such as JAN, FEB, MAR.
year
is a four-digit number greater than 1996.
hour
is a number from 0 to 23.
min
is a number from 00 to 59. min must be preceded by a colon (:).
INITTIME <day><mon><year><hour>:<min> | NOW
is a timestamp used for online product initialization. It has the same format as the timestamp
parameter described above. NOW causes RDF to be initialized at the current date and time.
NOW is designed specifically for use with REVERSE operations. NOW simplifies initialization
and configuration of a reverse RDF environment created in response to a reverse trigger. See
the “Example” for the SET TRIGGER command.
To determine the appropriate value to use as the inittime parameter, first issue an RDFCOM
STATUS RDF command and take note of the highest updater RTD time. Then round that
RTD time up to the next highest minute internal (0:43 becomes 1:00, 1:27 becomes 2:00, 3:04
becomes 4:00, and so forth). Finally, subtract that rounded-up time from the current system
time as shown in the status display.
inittime := (current-system-time — rounded-highest-updater-RTD-time)
RDFCOM then subtracts an additional three minutes from the specified time stamp. This is
to ensure that the extractor’s starting position is at a point in the MAT where RDF had
previously sent audit information to the backup system and the updaters had applied it to
the backup database. This practice guarantees that no audit information will be lost during
reinitialization.
See “Initializing RDF Without Stopping TMF” (page 84) and “Online Installation and
Initialization Without Stopping RDF” (page 85) for a description of this feature.
SYNCHDBTIME <day><mon><year><hour>:<min>
is a timestamp used for online database synchronization. It has the same format as the
timestamp parameter described above.
There are no special considerations for specifying the synchdbtime parameter, except that it
must designate a time earlier than the present time.
The SYNCHDBTIME parameter can only be used if RDF/IMPX or ZLT is installed on both
the primary and backup systems.
For a description of the online synchronization feature, see Chapter 7 (page 155).
RDFCOM Commands 199