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

]SET EXTRACTOR RTDWARNING 360
]ADD EXTRACTOR
You can issue ADD EXTRACTOR commands only when RDF is stopped.
Receiver Process
Use SET RECEIVER and ADD RECEIVER commands to configure the following receiver
parameters:
• ATINDEX
• CPUS primary-CPU : backup-CPU
• EXTENTS
• PRIORITY
• PROCESS
• RDFVOLUME
• SLOWMODE
The ATINDEX parameter specifies an integer value identifying a configured TMF audit trail on
the primary system. 0 specifies the MAT. 1 through 15 specify auxiliary audit trails AUX01
through AUX15. The default is 0. For each configured extractor, there must be a corresponding
receiver with the same ATINDEX value. For information about protecting auxiliary audit trails,
see Chapter 13 (page 271).
The CPUS parameter specifies the processors in the backup system in which the receiver is to
run.
The EXTENTS parameter only applies to the master receiver. It specifies the size of the primary
and secondary extents for all image trail files on all image trails.
The PRIORITY parameter specifies the priority at which the receiver will run. You should set
the receiver’s priority higher than that of any application’s process and higher than that of any
RDF updater process.
The PROCESS parameter supplies a name for the receiver process. You should specify a
meaningful mnemonic such as $RECV. The process name can be any unique valid process name
up to 5 characters, including the $ symbol. However, you cannot specify HP reserved process
names that are of the form $X*, $Y*, or $Z*, in which * is any alphanumeric string.
The RDFVOLUME parameter applies only to the master receiver. It specifies which volume on
the backup system will contain the receiver’s master image trail. The file naming convention for
image trail files is $volume.control-subvolume.AAnnnnnn, where n is a digit. For example,
the first image file is named $volume.control-subvolume.AA000001. You cannot specify the
subvolume name because that name is controlled by RDF.
The SLOWMODE parameter controls the frequency with which the receiver updates its context
records. With SLOWMODE on, the receiver updates its context records after processing each
extractor message buffer; this enables the updaters to have the lowest possible RTD value at all
times. The SLOWMODE parameter is intended for use when customers have implemented their
own pseudo-lockstepping environments. The default is SLOWMODE off. For a complete
discussion of SLOWMODE, see the description of the SET RECEIVER command in Chapter 8
(page 173).
To configure an RDF receiver process named $RECV to run as a process pair in CPUs 0 and 2 of
the backup system at a priority of 185 with SLOWMODE off, and to have the RDF image trail
file (with a primary extent size of 3000 pages and a secondary extent size of 3000 pages) reside
on the volume $IMAGE, issue the following commands:
]SET RECEIVER ATINDEX 0
]SET RECEIVER PROCESS $RECV
]SET RECEIVER CPUS 0:2
]SET RECEIVER PRIORITY 185
]SET RECEIVER RDFVOLUME $IMAGE
Initializing and Configuring RDF 95