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On Windows, OnSNMP comprises
the following files. The table also lists the directories in which
the IBM Informix installation procedure installs each file.
| File |
Description |
Directory |
| infxsnmp.dll |
Library that provides the interface between onsnmp.exe and
the master agent. The IBM Informix installation procedure installs
one infxsnmp.dll on each workstation. The
initialization process for the master agent loads infxsnmp.dll. |
%Windows%\system32 |
| onsnmp.exe |
Subagent program. The IBM Informix installation procedure
installs an onsnmp.exe file for each database server
or coserver. |
%INFORMIXDIR%\bin |
| onsrvapd.exe |
Server discovery process, which starts onsnmp.exe for each
database server or coserver that starts. The IBM Informix installation
procedure performs the following tasks for onsrvapd.exe:
- Installs one onsrvapd.exe on each workstation
- Creates the Informix Server Discovery Process for SNMP in the
control panel and configures it to start automatically when the
system reboots
|
%Windows%\system32 |
When you install an Informix database server or coserver, the
installation procedure automatically installs OnSNMP. When you start
an Informix database server or coserver that is on a network that
uses SNMP, onsrvapd.exe detects this
event and starts OnSNMP for the database server or coserver. When
the database server or coserver halts, onsrvapd.exe stops OnSNMP for
that database server or coserver.
Starting and Stopping OnSNMP
Under normal circumstances, you do not need to start or
stop OnSNMP explicitly. If you are experiencing abnormal circumstances
and need to start or stop OnSNMP explicitly, contact Technical Support.
For contact information, refer to your IBM Informix: Installation Guide.
Configuring
OnSNMP
The
Informix installation procedure creates a new registry key, OnSnmpSubagent,
under HKEY_LOCAL_MACHINE\SOFTWARE\Informix.
The
following table describes the OnSnmpSubagent arguments
that you can change.
| Argument |
Value |
Description |
Environment\
LINGER_TIME |
lingermnts |
Number of minutes that the master agent waits after
a database server or coserver goes down before the master agent
kills the corresponding OnSNMP. If lingermnts is 0, the master agent waits indefinitely. |
Environment\
LOGDIR |
pathname |
Complete path of the OnSNMP error-log file, including
filename |
Environment\
REFRESH_TIME |
pollsecs |
Frequency, in seconds, with which OnSNMP polls
the database server or coserver |
Environment
LOGLEVEL |
loglevel |
Logging level to which OnSNMP logs debugging information.
The default value is 3. The onsrvapd daemon passes this value
to OnSNMP. |
The following table describes the OnSnmpSubagent arguments
that you should not change.
| Argument |
Value |
Description |
| Pathname |
pathname |
Complete path of infxsnmp.dll, including filename |
| MIBS\APPLMIB |
apploid |
OID for the Application MIB |
| MIBS\ONMIB |
onoid |
OID for the Online MIB |
| MIBS\RDBMSMIB |
rdbmsoid |
OID for the RDBMS MIB |
| MIBS\XPSMIB
(XPS) |
xpsoid |
OID for the XPS MIB |
The Informix installation procedure also creates a new argument, INFXSNMP, under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
\SNMP\Parameters\ExtensionAgents. This new argument
specifies the location of the OnSnmpSubagent registry
key, including the name of the key.
To change the OnSNMP configuration, change the values for these
arguments.
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