Table 1 shows if a component has a parmlib member, if the member is a default member needed at system or component initialization, and if the component has default tracing. Some components run default tracing at all times when the component is running; default tracing is usually minimal and covers only unexpected events. Other components run traces only when requested.
- Make sure the parmlib contains all default members identified
in the table. If parmlib does not contain the default members at
initialization, the system issues messages.
Make sure that the IBM-supplied CTIITT00 member is in the parmlib. PARM=CTIITT00 can be specified on a TRACE CT command for a component trace that does not have a parmlib member; CTIITT00 prevents the system from prompting for a REPLY after the TRACE CT command. In a sysplex, CTIITT00 is useful to prevent each system from requesting a reply.
- Decide if each default member meets the needs of your installation. If it does not, customize it.
- Decide if the buffer size specified in the default members meets the needs of your installation. Some component traces do not allow buffer size change after initialization. Change the buffer size, if needed.
Most components can run only one component trace at a time; some components can run concurrent traces, called sublevel traces. Each sublevel trace is identified by its sublevel trace name. For some components, you need to identify the component's CTncccxx member in another parmlib member; the components with this requirement have the other parmlib member listed in the default member column in Table 1.
COUPLE SYSPLEX( ...
CTRACE(CTIXCF00)
...| Trace | Parmlib member | Default member | Default tracing beginning at initialization | Sublevel traces |
|---|---|---|---|---|
| SYSAPPC | CTnAPPxx (see CTnAPPxx parmlib member) | No | No; cannot turn trace ON or OFF in CTnAPPxx | No |
| SYSAXR | CTIAXRnn (see CTIAXRnn parmlib member). | CTIAXR00 | Yes | No |
| SYSBCPII | CTIHWI00 | CTIHWI00 |  Yes; minimal diagnostic tracing
is always in effect. The presence of a valid CTIHW100 parmlib at BCPii
startup can modify these default trace options. |
No |
| SYSBHI |
CTIBHIxx | CTIBHI00 | Yes; minimal; unexpected events | No |
| SYSCEA | CTICEAnn (see CTICEAnn parmlib member) | CTICEA00 | Yes | No |
| SYSDLF | None | N/A | Yes; always on when DLF is running | No |
| SYSDSOM | None | N/A | No | Yes |
| SYSGRS | CTnGRSxx (see CTnGRSxx parmlib member). | CTIGRS00, which is specified in GRSCNF00 member | Yes, if global resource serialization is active; CONTROL and MONITOR options | No |
| SYSIEFAL | CTIIEFxx (see CTIIEFxx parmlib member) | CTIIEFAL | Yes | No |
| SYSIOS | CTnIOSxx (see CTnIOSxx parmlib member) | No | Yes; minimal; unexpected events | No |
| SYSJES | CTnJESxx (see CTnJESxx parmlib member) | CTIJES01, CTIJES02, CTIJES03, CTIJES04 You should also receive and rename members IXZCTION and IXZCTIOF supplied in SYS1.SAMPLIB to CTIJESON and CTIJESOF. |
Yes; full tracing for sublevels XCFEVT and FLOW; minimal tracing of unexpected events for sublevels USRXIT and MSGTRC | Yes |
| SYSjes2 | None | N/A | Yes; always on when JES2 is running | Yes |
| SYSLLA | None | N/A | Yes; always on when LLA is running | No |
| SYSLOGR | CTnLOGxx (see CTnLOGxx parmlib member). | CTILOG00, which can be specified in IXGCNFxx member. | Yes; activated during system
logger (IXGLOGR) address space initialization |
No |
| SYSOMVS | CTnBPXxx (see CTnBPXxx parmlib member) | CTIBPX00, which must be specified in BPXPRM00 member | Yes; minimal; unexpected events | No |
| SYSOPS | CTnOPSxx (see CTnOPSxx parmlib member) | CTIOPS00, which must be specified in CONSOLxx member | Yes; minimal; unexpected events | No |
| SYSRRS | CTnRRSxx (see CTnRRSxx parmlib member) | None, but member ATRCTRRS supplied in SYS1.SAMPLIB can be used. See SET-UP and ACTIVATION instructions in the ATRCTRRS sample. | Yes; minimal; unexpected events | No |
| SYSRSM | CTnRSMxx (see CTnRSMxx parmlib member) | No | No | No |
| SYSSPI | None | N/A | No | No |
| SYSTTRC | N/A | N/A | No | No |
| SYSVLF | None | N/A | Yes; minimal; unexpected events | No |
| SYSWLM | None | N/A | Yes; minimal; unexpected events | No |
| SYSXCF | CTnXCFxx (see CTnXCFxx parmlib member) | CTIXCF00, which can be specified in COUPLE00 member | Yes; minimal; unexpected events | No |
| SYSXES | CTnXESxx (see CTnXESxx parmlib member) | CTIXES00, which can be specified in COUPLE00 member | Yes; minimal; unexpected events | Yes |