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

]SET RECEIVER EXTENTS (3000,3000)
]ADD RECEIVER
You cannot start RDF until you have configured a master receiver process.
You can issue ADD RECEIVER commands only when RDF is stopped.
Purger Process
Use SET PURGER and ADD PURGER commands to configure the following purger parameters:
• CPUS primary-CPU : backup-CPU
• PRIORITY
• PROCESS
• RETAINCOUNT
• PURGETIME
The CPUS parameter specifies the processors in the backup system in which the purger is to run.
The PRIORITY parameter specifies the priority at which the purger will run. You should set the
purger’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 purger process. You should specify a meaningful
mnemonic such as $PURG. 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 RETAINCOUNT parameter specifies how many of the most recent image trail files will be
retained on disk for each image trail. The default value is 2. For details about the RETAINCOUNT
parameter and triple contingency, see Chapter 10 (page 255).
The PURGETIME parameter specifies the number of minutes the purger process waits between
attempts to purge redundant image trail files. The default value is 60.
To configure an RDF purger process named $PURG to run as a process pair in CPUs 0 and 2 of
the backup system at a priority of 185, and to ensure that at least six image trail files are always
retained on disk, issue the following commands:
]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 parameters:
• ATINDEX
• CPUS primary-CPU : backup-CPU
• EXCLUDE
• IMAGEVOLUME
• INCLUDE
• PRIORITY
• PROCESS
• UPDATEVOLUME
You must configure an updater process for each primary system volume to be protected by RDF.
96 Installing and Configuring RDF