4. EXCEPTIONS › 4.3 Detailed Exception Descriptions › 02000: System Swap Paging Rate Exceeds Max

02000: System Swap 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 swap paging rate can identify periods of
overcommitment, incorrect SRM constants, or increasing use of
real storage (that is, large working sets).

RATIONALE:  A high swap paging rate can result from a high
swapping rate (exception 02014) but can also indicate that
the number of pages per swap is excessive.

DEFINITION:  This exception is detected when the swap 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:

**  02000 SYSTEM SWAP PAGING RATE EXCEEDS MAX
*;
RATE=SUM(PAGSIN,PAGSOT)/DURATION;
IF RATE GT rate
 THEN DO;
  EXCCODE='02000';SEVERITY='I';MGMTAREA='PERFORMANCE';
  EXCDESC1='SYSTEM SWAP 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 system swap paging rate per second is
specified.  A threshold rate of 5 would appear as:

RATE GT 5