4. EXCEPTIONS › 4.3 Detailed Exception Descriptions › 00253: Hourly TSO User Terminal I/O Excessively High

00253: Hourly TSO User Terminal I/O Excessively High

FILE              TSO User Activity File
SAS FILE NAME     DAYS.TSOTSU01
SOURCE LOCATION   sharedprefix.MICS.SOURCE(DYTSOEXC)

SEVERITY          Warning       (SEVERITY='W')
MANAGEMENT AREA   Workload      (MGMTAREA='WORKLOAD')

PURPOSE      Identifies users with unusually high terminal
             I/O activity.

RATIONALE    High terminal I/O activity can result in
             degraded response for users sharing a multi-
             point line.  In particular, 3270 users have been
             known to FLASH through large files by causing a
             continuous CLEAR or ENTER.  Under some
             conditions, this can lock out other users on the
             same line.

DEFINITION   This exception is detected when an individual
             user's terminal I/O for an hour exceeds the
             installation defined limit.

EXCEPTION    The SAS statements identifying the exception
STATEMENTS   situation and describing the condition are
             stored in the source member named in SOURCE
             LOCATION and are described below:

************************************************************;
*
**  00253
**  HOURLY TSO USER TERMINAL I/O EXCESSIVELY HIGH
*;
TERMIO=TSUTGETS + TSUTPUTS;
IF TERMIO > termio
 THEN DO;
  EXCCODE='00253'; SEVERITY='W'; MGMTAREA='WORKLOAD';
  EXCDESC1='HOURLY TSO USER TERMINAL I/O EXCESSIVELY HIGH';
  EXCDESC2='TPUTS=' || PUT(TSUTPUTS,8.) ||
           ', TGETS=' || PUT(TSUTGETS,8.);
  LINK HIT;
END;

THRESHOLD     Modify the value used for terminal I/O,
MODIFICATION  according to the following conventions:

    termio    The number of I/O operations (TGETS+TPUTS) is
              specified.  A threshold of 1000 EXCPs would
              appear as:

                 TERMIO > 1000