4. EXCEPTIONS › 4.3 Detailed Exception Descriptions › 01206: Pct of Time Device Mount Pending Exceeds Max

01206: Pct of Time Device Mount Pending Exceeds Max

FILE: Device Activity File
SAS FILE NAME: DAYS.HARDVA01
SOURCE LOCATION: prefix.MICS.USER.SOURCE(DYRMFEXC)

SEVERITY: Warning              (SEVERITY='W')
MANAGEMENT AREA: Performance   (MGMTAREA='PERFORMANCE')

PURPOSE:  The percent of time a device was in pending mount
status may be used to identify the time spent mounting
devices.

RATIONALE:  Performance in replying to mounts may be measured
by the amount of time the device was found with a mount
pending.  However, the number of mounts during the
measurement interval is not available, so a high value for
percent mount pending is not necessarily a sign of
inefficiency.

DEFINITION:  This exception is detected when the percent of
time a mount was pending exceeds the installation-defined
maximum.  Different values should be established for
different device classes and types.  Note that the time
measured is for all mount pending events that occurred during
the RMF record interval.

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:

** 01206 PCT OF TIME DEVICE MOUNT PENDING EXCEEDS MAX;
*;
IF (DEVCLASS EQ 'TAPE' AND DVAPCMTP GT percent) OR
   (DEVCLASS EQ 'DASD' AND DVAPCMTP GT percent)
 THEN DO;
  EXCCODE='01206'; SEVERITY='W'; MGMTAREA='PERFORMANCE';
  EXCDESC1='PCT OF TIME DEVICE MOUNT PENDING EXCEEDS MAX';
  EXCDESC2='PCT=' !! PUT(DVAPCMTP,5.1) !!
         ', VOL=' !! VOLSER            !!
        ', ADDR=' !! PUT(DEVNUM,HEX4.) !!
        ', TYPE=' !! DEVTYPE;
  LINK HIT;
END;
THRESHOLD MODIFICATION:  The user should modify the percent
value according to the following convention:

percent - The maximum percent of time a mount is pending.  A
5 percent threshold would appear as:

DVAPCMTP GT 5