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

to which protected data volumes are configured. You use a SET EXTRACTOR VOLUME statement
for each individual volume. You do not need to specify whether the volume is an active volume,
restore volume, or overflow volume; you merely specify the volume name. For information about
the ZLT capability, see Chapter 17 (page 329).
To configure an RDF extractor process named $EXT to run as a process pair in CPUs 5 and 3 of
the primary system, at a priority of 185, with an RTD warning threshold of 360 seconds, issue the
following commands:
]SET EXTRACTOR ATINDEX 0
]SET EXTRACTOR PROCESS $EXT
]SET EXTRACTOR CPUS 5:3
]SET EXTRACTOR PRIORITY 185
]SET EXTRACTOR RTDWARNING 60
]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 attributes:
• ATINDEX
• CPUS primary-CPU : backup-CPU
• PRIORITY
• PROCESS
• RDFVOLUME
• EXTENTS
• FASTUPDATEMODE
The ATINDEX attribute 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 282).
The CPUS attribute specifies the processors in the backup system in which the receiver is to run.
The PRIORITY attribute 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 attribute 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 six
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 attribute 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 EXTENTS attribute 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 FASTUPDATEMODE value controls the frequency with which the receiver writes to the image
trails and makes image trail data available to the updaters. With FASTUPDATEMODE OFF, the
receiver buffers the audit sent by the extractor and writes those buffers out to the image trails at
the most convenient time. This ensures that RDF can achieve the highest possible extractor-to-receiver
throughput, but it does delay the updaters in how quickly they are allowed to read and apply the
82 Installing and Configuring RDF