RDF System Management Manual for J-series and H-series RVUs (RDF Update 13)

global-option, extractor-option, monitor-option, receiver-option,
purger-option, netsynch-option, trigger-option and updater-option
are described under the SET RDF, SET EXTRACTOR, SET MONITOR, SET RECEIVER, SET
PURGER, SET RDFNET, SET TRIGGER, and SET VOLUME commands, respectively.
trigger-type
is REVERSE or TAKEOVER. This command parameter alters a trigger that has already been
added to the RDF configuration.
Where Issued
These commands can be issued only at the primary system, except altering the TAKEOVER trigger,
which can also be issued on the backup system if and only if the primary system is not available.
NOTE: You should only alter the TAKEOVER trigger on the backup system if you are about to
issue the TAKEOVER command. If you alter this trigger on the backup system at any other time,
you must remember to issue the same alter command on the primary system when it is available
again. If you fail to do this, then the next time you start RDF, the trigger information on the primary
system is copied to the backup system, and the changes you had made to the trigger on the backup
system are then lost.
Security Restrictions
You can issue the ALTER command if you are a member of the super ID group.
RDF State Requirement
While RDF is running, you can only alter the following configuration parameters:
• Log file
• Purge time
• RDF updater delay
• RDF UPDATEROPEN
• INCLUDE and EXCLUDE clauses of a file
• Priority of each RDF process
To change the setting of any other parameter, you must first stop RDF.
Usage Guidelines
Before entering the ALTER command, you can display the current configuration parameters with
the INFO RDF command. After entering ALTER, you can confirm your changes by again entering
INFO RDF.
For using ALTER RDF UPDATEROPEN to coordinate the taking of online dumps or reloads on the
backup system, see the discussion in Chapter 5 (page 110).
If you use an ALTER RECEIVER command to change the EXTENTS parameter, the change will occur
on the next RDF image file rollover, unless RDF has never been started since its last reinitialization.
Although you can use the SET RECEIVER RDFVOLUME command to specify the disk volume used
for the master image trail, you cannot re-specify this volume by entering an ALTER RECEIVER
RDFVOLUME command. To change this volume, you must reinitialize RDF and use another SET
RECEIVER RDFVOLUME command followed by an ADD RECEIVER command.
The ALTER command only supports INCLUDE/EXCLUDE of files and does not support
INCLUDEPURGE/EXCLUDEPURGE. Wild cards in file names and subvolume names are not
supported with this command. When the command is executed with INCLUDE/EXCLUDE keyword
while RDF is online, the command issues a warning message and prompts the user to confirm the
184 Entering RDFCOM Commands