TCP/IP (Parallel Library) Configuration and Management Manual

HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
6-1
6 Troubleshooting Tips
This section provides some conditions to check if you encounter some problems with
your Parallel Library TCP/IP configuration. Review the following list for suggestions
that may pertain to your configuration:
•
Check the adapter configuration and ensure that the SACs are configured with the
correct Access List. Make sure that all processors running a TCPMON process are
listed in the Access List.
•
Ensure that you have cleared the system of all DEFINEs and PARAMs before
adding new ones.
•
Ensure that you add a DEFINE and PARAM to specify a TCPSAM name before
starting your LISTNER, TELSERV, or other client application. The following
examples show the DEFINE and PARAM TACL commands:
ADD DEFINE =TCPIP^PROCESS^NAME, FILE $ZSAM0
PARAM TCPIP^PROCESS^NAME $ZSAM0
•
Ensure that you add the DEFINE to specify the location of the SRL before starting
the TCPSAM process. See the ADD DEFINE =_SRL command in Example 1-1 on
page 1-8.
•
Ensure that you set your home terminal for the TCPMAN process to $ZHOME.
Check your TCPMAN process creation script to ensure that TERM $ZHOME (and
OUT $ZHOME) are included. You should also add these attributes to the TCPSAM,
LISTNER, and TELSERV process startup commands.
•
If you have a large configuration that has many LISTNERs and if you want to use
different TCPSAM processes for each of them, make sure you delete and add
DEFINEs and PARAMs for the TCPSAM process that will be associated with each
LISTNER. For an example of deleting the DEFINEs and PARAMs, see the
Considerations on page 5-73 in the START MON Command for TCPMAN on
page 5-72.
•
You must wait for all the TCPMONs to start before starting TCPSAM. Check your
configuration scripts to ensure that a DELAY command exists after starting the
TCPMONs. See the DELAY command in Example 1-1 on page 1-8.
•
When you configure a set of listening processes for round robin, do not allow their
primary and backup processors to overlap. That is, if you configure primary and
backup listening processes, do so in distinct pairs. For example, if you have four
processors, 0 through 3, and you want to configure primary and backup TELSERV
processes for round-robin distribution, configure a primary and backup TELSERV
Note. Only one TCPSAM process is needed for all the applications in the system; creating
more TCPSAM processes does not provide more bandwidth. If you use only one TCPSAM
process for all the LISTNERs in the system, you only need to delete and add the DEFINE
for TCPIP^PROCESS^NAME once.