RDF/IMP and IMPX System Management Manual (RDF 1.3+)

Additional Reference Information
Compaq NonStop™ RDF/IMP and IMPX System Management Manual—522204-001
B-9
RDF System Files
RDF System Files
The following files are created by the RDF subsystem and used by RDF processes:
•
Configuration file
This is a relative file with record length 4062. The configuration file contains an
internal representation of the configuration parameters that are set through
RDFCOM commands. The configuration file resides on both the primary and
backup node; on both nodes, the configuration file is named:
$SYSTEM.control-subvolume.CONFIG
•
Context file
The context file is a relative file with record length 478. The context file contains the
context information that tells the RDF subsystem where the RDF processes stopped.
There is a separate context file on the primary node and the backup node; on both
nodes, the context file is named:
$SYSTEM.control-subvolume.CONTEXT
•
Exception files
Exception files are unstructured files that contain transaction information for all
audit data that could not be applied during takeover processing. These files exist on
the backup node and use the naming convention:
$SYSTEM.control-subvolume.volume
The RDF subsystem creates one exception file for each primary node volume that
the RDF subsystem is protecting.
The name of the exception file is the primary volume name configured for the
updater of that volume.
You can use the RDFSNOOP utility to display the contents of exception files, as
explained previously in this section.
•
RDF image files
RDF image files are unstructured files that contain logical audit record images and
commit-abort records. These image files exist on the backup node. The RDF image
files reside on $volume.
control-subvolume, in which $volume is specified
by the RDFVOLUME parameter of the ADD RECEIVER command and ADD
IMAGETRAIL command. The actual file names are of the form AAnnnnnn.