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

]SET PURGER PROCESS $PURG
]SET PURGER CPUS 0:2
]SET PURGER PRIORITY 185
]SET PURGER RETAINCOUNT 6
]SET PURGER PURGETIME 30
]ADD PURGER
You cannot start RDF until you have configured a purger process.
You can issue ADD PURGER commands only when RDF is stopped.
Updater Processes
Use SET VOLUME and ADD VOLUME commands to configure the following updater attributes:
• ATINDEX
• CPUS primary-CPU : backup-CPU
• PRIORITY
• PROCESS
• IMAGEVOLUME
• UPDATEVOLUME
• INCLUDE
• EXCLUDE
• EXCLUDEPURGE
• INCLUDEPURGE
You must configure an updater process for each primary system volume to be protected by RDF.
The ATINDEX attribute specifies an integer value from 0 through 15 specifying the audit trail on
the primary system to which the data volume being protected is mapped. 0 specifies the MAT. 1
through 15 specifies auxiliary audit trails AUX01 through AUX15, respectively. The default is 0.
The CPUS attribute specifies the processors in the backup system in which the updater will run.
The PRIORITY attribute specifies the priority at which the updater will run. You should set the
updater’s priority higher than that of any application’s process but less than the priority of the RDF
receiver process.
The PROCESS attribute supplies a name for the updater process. You should specify a meaningful
mnemonic such as $UP01. 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 IMAGEVOLUME attribute associates this updater process with a specific image trail you have
previously added to the RDF configuration. You cannot add this updater process, associating it to
an image volume, unless you have already added the image trail with the ADD IMAGETRAIL
command. Also, the ATINDEX of this updater must match the ATINDEX of the associated image
trail.
The UPDATEVOLUME attribute specifies the name of the disk volume on the backup system that
corresponds to a particular volume on the primary system. This attribute enables you to use different
volume names on the backup system than are being used on the primary system, if you so desire.
The following guidelines are strongly recommended:
• There should be an identical one-to-one volume relationship between volumes on the primary
system and those on the backup system.
• Each backup volume should have the same name as the associated primary volume.
84 Installing and Configuring RDF