Instruction manual

SECTION 7. DATA COLLECTION (DBSELECT)
7-3
Ack. Named Pipe
TCP\IP Network
VAX,OS/2,
HP9000, ...
machine
OS/2
Machine
TCPC or user
TCP program
TCPS
DBSelect
FIGURE 7-1. Example Named Pipe Client Software for TCP/IP Use
7.3.3 ASCII FILES
To use ASCII files as the destination, select
ASCII FILES... off the FILES submenu (see
Figure 7.2). Fill out the parameters as follows:
Specify the location (parent directory) for the
'baled' files for the BALE PATH: parameter.
DBSelect will create a subdirectory for each
station in this directory where the data from that
station will be stored.
Specify the location for pending (shadow) files.
Like the bale path, DBSelect will create a
subdirectory for each station. DBSelect stores
temporary data in these locations. The files
should not be accessed by anything besides
DBSelect.
The
BALE EVERY: _______ MINUTES
STARTING _______ MINUTES AFTER
_________________
Entries allow an interval, offset and starting time
for baling to be specified. This determines how
often and when DBSelect will produce baled files.
NOTE: The ASCII FILES ENABLED button
must be checked for data to be stored in
ASCII files.
Select OK to accept and use changes or
CANCEL to disregard settings and use previous
selections. When data collection is taking
place, the BALE NOW button can be select to
force DBSelect to produce baled files now
instead of waiting until the next interval.
7.3.4 SECONDARY DATA DESTINATIONS
In addition to the two data destinations
described above, DBSelect will also route data
to two secondary destinations; an unacknow-
ledged named pipe and DBSelect$.LOG ASCII
files. DBSelect does not track what data is sent
to these destinations that may result in duplicate
or missing data. DBSelect will send all data it
receives through an unacknowledged named
pipe regardless of whether a program is in
place to receive it. If selected (FILE submenu)
DBSelect will store all data it receives in files
named DBSelec0.log through DBSelec9.log
overwriting the oldest if all ten files exist,
otherwise creating a new file when the
DBSelect$.LOG file gets to be about 1.2
megabytes in size. The unacknowledged
named pipe and the DBSelec$.log files have
data from all station and tables intermixed.
Each row of data contains information regarding
its source (Station, table, fields). The
unacknowledge named pipe name is
"\PIPE\RTMA."
7.3.5 ENABLING HOLE COLLECTION
The COLLECT HOLES button on the DBSelect
main screen must be selected if hole collection
is to be used.
NOTE: If hole collection is not enabled an
incomplete set of data will be stored.