Controlling the amount of tracing in a CMAS or MAS

During normal CMAS and MAS processing all the standard and special trace levels (levels 1-32) are usually disabled. Exception tracing is always active and cannot be disabled.

You can turn tracing on for a specific CMAS or MAS component in one of the following ways:

Using the end-user interface to control tracing

You can use the CMAS or MAS view to control the tracing that occurs in an active CMAS or MAS.

For example, if you want to change the trace levels for the CMAS called EYUCMS1A, do the following:

  1. Issue the CMAS view command.
  2. Either issue the TRACE primary action command from the COMMAND field, as shown in Figure 6, or enter the TRA line action command in the line command field next to EYUCMS1A.
    Note:
    To change the trace levels for a MAS, use the UPD line action command and then scroll to the Control MAS Trace input panel.
    Figure 6. Controlling tracing from the CMAS view
     27FEB2005  14:46:30 ----------- INFORMATION DISPLAY ---------------------------
     COMMAND  ===>  TRACE EYUCMS1A                              SCROLL ===> PAGE
     CURR WIN ===> 1        ALT WIN ===>
      W1 =CMAS==============EYUCMS1A=EYUCMS1A=27FEB2005==14:46:30=CPSM======2=======
     CMD Name     Status   Sysid Access   Transit  Transit
     --- -------- -------- ----- Type---- CMAS---- Count--
         EYUCMS1A ACTIVE   CM1A  LOCAL                   0
         EYUCMS1B ACTIVE   CM1B  ADJACENT                0
     
  3. The Component Trace input panel appears, as shown in Figure 7. It identifies the current trace settings for each component in the CMAS. A setting of Y means that trace level is active for the specified component; a setting of N means tracing is not active.
    Figure 7. The Component Trace input panel
     --------------------- Component Trace Levels for EYUCMS01 ---------------------
     COMMAND  ===>
     
         Overstrike the level number with a Y or N to alter the trace level
     
         Level                     1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3
                 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2
    Component    ---------------------------------------------------------------
     KNL         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     TRC         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     MSG         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     SRV         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     CHE         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     QUE         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     DAT         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     COM         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     TOP         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     MON         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     RTA         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     WLM         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
     BAS         N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
    Press Enter to change Trace Flags.
    Type END to cancel without changing.
     
  4. To change a trace setting for a specific component, such as Kernel Linkage (KNL):
    1. Position the cursor next to KNL.
    2. Move the cursor across the line to the appropriate level (1-32).
    3. Type either Y, to activate tracing, or N, to deactivate tracing.
  5. When all the trace settings are correct, press Enter. The CMAS view is redisplayed.

Interpreting CMAS and MAS trace entries

A single CMAS or MAS trace can produce multiple records. Each record consists of a standard header followed by up to 3900 bytes of unique trace data. Within that data, each CMAS and MAS component uses a unique set of trace point IDs. Each trace point ID is used by only one trace point. A trace point ID consists of:

Trace point numbers are assigned as follows:

Range
Type of trace
0001-1024
Exception trace
1025-2048
Level 1 trace
2049-3072
Level 2 trace
3073-32767
Special trace (Levels 3-32)
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