Table 20 lists the database server files and the directories in which they reside.
| Filename | Directory | Purpose | Created | 
|---|---|---|---|
| af.xxx | Specified by DUMPDIR configuration parameter | Assertion-failure information | By the database server | 
| ac_msg.log | /tmp, %INFORMIXDIR%\etc | archecker message log (for Technical Support) | By the database server | 
| ac_config.std | $INFORMIXDIR/etc, %INFORMIXDIR%\etc | Template for archecker-parameter values | By the database server | 
| bar_act.log | /tmp, %INFORMIXDIR%\etc | ON–Bar activity log | By ON–Bar | 
| bldutil.process_id | /tmp,
 \tmp  | 
Error messages about the sysutils database appear in this file | By the database server | 
| buildsmi.xxx | /tmp, %INFORMIXDIR%\etc | Error messages about SMI database | By the database server | 
| concdr.sh | $INFORMIXDIR
 /etc/conv, %INFORMIXDIR% \etc\conv  | 
Converts the syscdr database to Version 10.0 format | By the database server | 
| .conf.dbservername | The onsnmp utility uses this file to obtain the database server configuration | By the database server | |
| core | Directory from which the database server was invoked | Core dump | By the database server | 
| Emergency boot files (For filenames, see page Emergency Boot Files for ON-Bar.) | $INFORMIXDIR/etc, %INFORMIXDIR%\etc | Used in a cold restore | By ON–Bar | 
| gcore (UNIX) | Specified by DUMPDIR configuration parameter | Assertion failure information | By the database server | 
| illlsrra.xx | $INFORMIXDIR/lib, %INFORMIXDIR%\lib | Shared libraries for the database server and some utilities | By install procedure | 
| .informix (UNIX) | User's home directory | Set personal environment variables | By the user | 
| informix.rc (UNIX) | $INFORMIXDIR/etc | Set default environment variables for all users | By the database administrator | 
| INFORMIXTMP | /tmp,
 \tmp  | 
Temporary directory for internal files | By the database server | 
| .inf.servicename | /INFORMIXTMP,
 drive:\INFORMIXTMP  | 
Connection information | By the database server | 
| .infos.dbservername | $INFORMIXDIR/etc, %INFORMIXDIR%\etc | Connection information | By the database server | 
| .infxdirs | /INFORMIXTMP,
 drive:\INFORMIXTMP  | 
Database server discovery file that onsnmp uses | By the database server | 
| InstallServer.log 
 (Windows)  | 
C:\temp | Database server installation log | By the database server | 
| ISM catalog | $INFORMIXDIR/ism,
 %ISMDIR%  | 
Records saved backup objects and storage volumes that IBM Informix Storage Manager (ISM) uses | By ISM | 
| ISM logs | $INFORMIXDIR/
 ism/logs, %ISMDIR%\logs  | 
Operator alert messages, backend status, additional ISM information | By ISM | 
| ISMversion | $INFORMIXDIR/ism, %ISMDIR% | ISM version | During installation | 
| JVM_vpid | Specified by JVPLOG configuration parameter | Messages that the Java virtual machine generates | By the Java virtual machine | 
| JVPLOG | Specified by JVPLOG configuration parameter | Messages from the Java virtual processor | By the database server | 
| .jvpprops | Specified by JVPPROFILE configuration parameter | Template for Java VP properties | During installation | 
| Message log | Specified by MSGPATH configuration parameter | Error messages and status information | By the database server | 
| The ONCONFIG file | $INFORMIXDIR/etc, %INFORMIXDIR%\etc | Configuration information | By the database administrator | 
| onconfig | $INFORMIXDIR/etc, %INFORMIXDIR%\etc | Default ONCONFIG file (optional) | By the database server administrator | 
| onconfig.std | $INFORMIXDIR/etc | Template for configuration-
 parameter values  | 
During installation | 
| oncfg_servername.
 servernum  | 
$INFORMIXDIR/etc, %INFORMIXDIR%\etc | Configuration information for whole-system restores | By the database server | 
| onsnmp.servername | /tmp, 
 \tmp  | 
Log file that the onsnmp subagent uses | By onsnmp | 
| onsrvapd.log | /tmp, 
 \tmp  | 
Log file for the database server daemon onsrvapd | By onsnmp | 
| revcdr.sh | $INFORMIXDIR
 /etc/conv, %INFORMIXDIR% \etc\conv  | 
Reverts the syscdr database to an earlier format | By the database server | 
| servicename.exp | /INFORMIXTMP, drive:\INFORMIXTMP | Connection information | By the database server | 
| servicename.str | /INFORMIXTMP, drive:\INFORMIXTMP | Connection information | By the database server | 
| shmem.xxx (UNIX) | Specified by DUMPDIR configuration parameter | Assertion-failure information | By the database server | 
| sm_versions.std | $INFORMIXDIR/etc, %INFORMIXDIR%\etc | Identifies storage manager in use | During installation | 
| snmpd.log | /tmp, 
 \tmp  | 
Log file for the SNMP master agent, snmpdm | By onsnmp | 
| sqlhosts (UNIX) | $INFORMIXDIR/etc | Connection information; contained in the registry on Windows | During installation; modified by the database server administrator | 
| VP.servername.nnx | /INFORMIXTMP, drive:\INFORMIXTMP | Connection information | By the database server | 
| xbsa.messages | $INFORMIXDIR
 /ism/applogs, %ISMDIR%\applogs  | 
XBSA library call information | By ISM |