4. EXCEPTIONS › 4.3 Detailed Exception Descriptions › 02002: Physical VIO Paging Rate Exceeds Max

02002: Physical VIO Paging Rate Exceeds Max

FILE:  Paging Activity File
SAS FILE NAME:  DAYS.SCPPAG01
SOURCE LOCATION:  prefix.MICS.USER.SOURCE(DYRMFEXC)

SEVERITY:  Impacting (SEVERITY='I')
MANAGEMENT AREA:  Performance (MGMTAREA='PERFORMANCE')

PURPOSE:  Excessive VIO paging indicates that real memory is
overcommitted or that the VIO facility is being misused.

RATIONALE:  The total VIO paging rate reflects the actual
transferring of pages between real memory and auxiliary
storage for VIO pages.  When real memory is overcommitted,
excessive paging results.  However, this exception can also
result from misuse of VIO.

DEFINITION:  This exception is detected when the VIO paging
rate exceeds the installation-defined maximum.

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

**  02002 PHYSICAL VIO PAGING RATE EXCEEDS MAX
*;
RATE=SUM(PAGVIN,PAGVOT)/DURATION;
IF RATE GT rate
 THEN DO;
  EXCCODE='02002';SEVERITY='I';MGMTAREA='PERFORMANCE';
  EXCDESC1='PHYSICAL VIO PAGING RATE EXCEEDS MAX';
  EXCDESC2='PAGE RATE=' !! PUT(RATE,5.1) !! '/SEC';
  LINK HIT;
END;

THRESHOLD MODIFICATION:  The user should modify the rate
value according to the following convention:

rate - The maximum rate of VIO paging per second is
specified.  A rate threshold of 5 would appear as:

RATE GT 5