HP NonStop RDF J-series RVUs Management Manual page 213

INITIALIZE RDF , BACKUPSYSTEM backup-system-name
[ , SUFFIX suffix-character
[ , TIMESTAMP <day><mon><year><hour>:<min>
[ , INITTIME <day><mon><year><hour>:<min> | NOW ]
[ , SYNCHDBTIME <day><mon><year><hour>:<min>]
[!]
backup-system-name
specifies the backup system. The system name begins with a backslash (\) followed by 1 to
7 letters or digits; the first character following the backslash must be a letter. There is no
default system name.
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.
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 :=
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 records to the backup system and the updaters had applied it to the
backup database. This practice guarantees that no audit records are lost during reinitialization.
See "Initializing RDF Without Stopping TMF (Using INITTIME Option)" (page 80)
"Online Installation and Initialization Without Stopping RDF" (page 82)
this feature.
The NOW option should only be used with REVERSE operations. NOW simplifies
initialization and configuration of a reverse RDF subsystem that is created during the execution
of a reverse trigger. See the example in the discussion of the
(current-system-time — rounded-highest-updater-RTD-time)
]
]
for a description of
"SET TRIGGER" (page
RDFCOM Commands
and
235).
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