VTAM statistics

These statistics can be accessed online using the EXEC CICS® COLLECT STATISTICS VTAM® command, and are mapped by the DFHA03DS DSECT. For programming information about the EXEC CICS COLLECT STATISTICS command, see the CICS System Programming Reference manual.

This section contains the following statistics:

VTAM: Global statistics

Table 169. VTAM: Global statistics
DFHSTUP name Field name Description
Times at RPL maximum A03RPLXT is the number of times the peak RPLs posted value (A03RPLX) was reached.

Reset characteristic: reset to zero

 

Peak RPLs posted A03RPLX is the maximum number of receive-any request parameter lists (RPLs) that are posted by VTAM on any one dispatch of terminal control.

Reset characteristic: reset to zero

 

Short on storage count A03VTSOS is a counter that is incremented in the VTAM SYNAD exit in the CICS terminal control program each time VTAM indicates that there is a temporary VTAM storage problem.

Reset characteristic: reset to zero

 

Dynamic opens count A03DOC is the number of times the VTAM access method control block (ACB) was opened through the control terminal. If VTAM is started before CICS and stays active for the whole CICS run, this value is zero.

Reset characteristic: reset to zero

 

Current LUs in session A03LUNUM is the current number of LUs in session. The types of LU that are included are:
  • LU6.1 primaries and secondaries in session (bound)
  • LU6.2 primaries and secondaries in session (bound)
  • VTAM terminals.

Reset characteristic: not reset.

 

HWM LUs in session A03LUHWM is the current highest number of LUs logged on. The types of LU that are included are:
  • LU6.1 primaries and secondaries in session (bound)
  • LU6.2 primaries and secondaries in session (bound)
  • VTAM terminals.

Reset characteristic: reset to current value.

 

PS inquire count A03PSIC is the number of times CICS issued INQUIRE OPTCD=PERSESS.

Reset characteristic: reset to current value.

 

PS nib count A03PSNC is the number of VTAM sessions that persisted.

Reset characteristic: reset to current value.

 

PS opndst count A03PSOC is the number of persisting sessions that were successfully restored.

Reset characteristic: reset to current value.

 

PS unbind count A03PSUC is the number of persisting sessions that were terminated.

Reset characteristic: reset to current value.

 

PS error count A03PSEC is the number of persisting sessions that were already unbound when CICS tried to restore them.

Reset characteristic: reset to current value.

 

VTAM: Summary global statistics

Summary statistics are not available online.

Table 170. VTAM: Summary global statistics
DFHSTUP name Description
Times at RPL maximum is the total number of times the peak RPLs posted value was reached.

 

Peak RPLs posted is the peak number of receive-any request parameter lists (RPLs) that are posted by VTAM on any one dispatch of terminal control.

 

Short on storage count is a counter that is incremented in the VTAM SYNAD exit in the CICS terminal control program each time VTAM indicates that there is a temporary VTAM storage problem.

 

Dynamic opens count is the total number of times that the VTAM access method control block (ACB) was opened through the control terminal. If VTAM is started before CICS and stays active for the whole CICS run, this value is 0.

 

Average LUs in session is the average value for the number of LUs logged on.

 

HWM LUs in session is the highest value of the number of LUs logged on.

 

PS inquire count is the total number of times CICS issued INQUIRE OPTCD=PERSESS.

 

PS nib count is the total number of VTAM sessions that persisted.

 

PS opndst count is the total number of persisting sessions that were successfully restored.

 

PS unbind count is the total number of persisting sessions that were terminated.

 

PS error count is the total number of persisting sessions that were already unbound when CICS tried to restore them.

 

Related reference
Back to full list of statistics and DFHSTUP reports
Appendix A. CICS statistics tables
Interpreting these statistics
Interpreting VTAM statistics
DFH0STAT reports for these statistics
Autoinstall and VTAM Report
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