Virtual Hometerm Subsystem (VHS) Manual (G06.24+, H06.04+, J06.03+)

Using VHS
Virtual Hometerm Subsystem (VHS) Manual—429311-002
3-17
Understanding the VHS Log Files
has been stopped, creates a saveabend file, and stops the application. VHS then uses
the new VHS Inspect file for all the new applications trapping into Inspect/eInspect.
Understanding the VHS Log Files
VHS has both a primary log file set and a secondary log destination. The VHS primary
log file set provides an audit trail of the messages received by VHS. The maximum
number of the files in the primary log file set is controlled by the PRIMARY-LOGFILE-
PURGE parameter. You can specify the primary, secondary, and maximum extents of
the log files when you start VHS or alter these values via the VHSCI.
You can use a report generator, such as Enform, or a COBOL program to extract the
information from the primary log files.
PRIMARY-LOGFILE-PURGE Parameter
The PRIMARY-LOGFILE-PURGE parameter can be set ON (true) or OFF (false). This
parameter can be set when starting VHS, as part of the VHS startup file (VHSSTART).
If the parameter value is not set, the default is ON.
Setting the parameter to ON results in the primary log file set containing up to a
maximum of five files. VHS stores its messages in these five consecutively numbered
log files. For example, when the first file LOG0000 is full, VHS creates up to four more
log files named LOG0001 through LOG0004. When all five log files are full, VHS
purges the oldest file and creates the next file Figure 3-1 on page 3-18.
Purging of the log files can be avoided by setting this parameter to OFF. There are no
restriction on the number of files in the primary log file set. When one log file is full, the
next consecutive log file is created. For example, when LOG0004 is full, LOG0005 is
created. The older log files are not purged.