REPORTS DD data set
This data set contains the DEDB Area Analysis reports, the Segment Length Distribution report, and the Process Summary report.
For more information, see the IMS High Performance Image Copy User's Guide.
DEDB Area Analysis reports
The DEDB Area Analysis reports include the following reports:
- Freespace Analysis report
- DB Record Profile Analysis report
- Segment Placement Analysis report
Segment Length Distribution report
This report shows the distribution of the length of variable segments for each segment type. It also contains information about the fixed-length segment that is compressed by the compression routine.
This report is optional and is generated for the area that is specified by the DEDBPC=(Y,SEGLDIST) keyword.
The distribution of SDEP length is not included in this report.
If no variable-length segment or compressed fixed-length segment is defined in the database, this report is not printed. In addition, if integrity verification for pointer fails, this report is not printed.
IMS HPFP UTILITIES - HPIC DEDBPC "Segment Length Distribution Report" PAGE: 5
5698-FPP V2R1 2020-11-22 15:22:31
DBDNAME: DEDBJN23 AREANAME: DB23AR1
AREA NUMBER: 1
DISTRIBUTION OF SEGMENT LENGTHS
SEGMENTS REPORTED
ROOTSEG1 DD1 DD11
SEGMENTS NOT REPORTED
- THE FOLLOWING SEGMENTS WERE NOT FOUND IN THE AREA
no segment
- THE FOLLOWING SEGMENTS WERE DEFINED IN DBD AS FIXED-LENGTH SEGMENTS WITHOUT COMPRESSION ROUTINE
DD12 DD2 - SEGMENTS REPORTED
- Shows the names of the segments that are reported in the subsequent pages of the report.
- SEGMENTS NOT REPORTED
- Shows the names of the segments that are not reported in the subsequent
pages of the report. These segments are not reported for either of
the following reasons:
- THE FOLLOWING SEGMENTS WERE NOT FOUND IN THE AREA
- THE FOLLOWING SEGMENTS WERE DEFINED IN DBD AS FIXED-LENGTH SEGMENTS WITHOUT COMPRESSION ROUTINE
IMS HPFP UTILITIES - HPIC DEDBPC "Segment Length Distribution Report" PAGE: 6
5698-FPP V2R1 2020-11-22 15:22:31
DBDNAME: DEDBJN23 AREANAME: DB23AR1
AREA NUMBER: 1
SEGMENT CUMULATIVE
SC NAME SIZE RANGE OCCURRENCES PERCENTAGE PERCENTAGE
--- -------- --------------- ----------- ---------- ----------
1 ROOTSEG1 134 - 171 63 37.5 % 37.5 %
172 - 209 0 0.0 % 37.5 %
210 - 248 76 45.2 % 82.7 % <= AVERAGE
249 - 286 2 1.2 % 83.9 %
287 - 324 0 0.0 % 83.9 %
325 - 363 0 0.0 % 83.9 %
364 - 401 0 0.0 % 83.9 %
402 - 439 0 0.0 % 83.9 %
440 - 478 12 7.1 % 91.1 %
479 - 516 3 1.8 % 92.9 %
517 - 554 0 0.0 % 92.9 %
555 - 593 0 0.0 % 92.9 %
594 - 631 11 6.5 % 99.4 %
632 - 669 0 0.0 % 99.4 %
670 - 708 0 0.0 % 99.4 %
709 - 746 0 0.0 % 99.4 %
747 - 784 0 0.0 % 99.4 %
785 - 823 0 0.0 % 99.4 %
824 - 861 0 0.0 % 99.4 %
862 - 900 1 0.6 % 100.0 %
--- -------- --------------- ----------- ---------- ----------
TOTALS 134 - 900 168 100.0 %
AVERAGE SEGMENT LENGTH= 243.2
MORE THAN 90 PERCENT OF SEGMENT OCCURRENCES ARE INCLUDED IN THE RANGE 134 - 478.- SC
- Segment code.
- SEGMENT NAME
- Segment name, as coded on the SEGM macro in the DBD.
- SIZE RANGE
- The size range (in bytes) of the part of the variable-length segment to be reported. For compressed segment, the length after compression is used for the size. The shortest and the longest sizes are actual values detected in the database, not extracted from the DBD. This report divides the size range into 20. If the segment length is distributed within a certain narrow range, the size range might become less than 20 or the size range might not be fixed.
- OCCURRENCES
- The number of occurrences that are included in this range.
- PERCENTAGE
- The percentage of occurrences of this range, and what percentage it makes of the total.
- CUMULATIVE PERCENTAGE
- The cumulative value of PERCENTAGE.
- TOTALS
- The minimum length, maximum length, and occurrences of the segment.
- AVERAGE SEGMENT LENGTH
- The average length of the data part in segments of this type in this partition or database.
- MORE THAN 90 PERCENT OF SEGMENT OCCURRENCES ARE INCLUDED IN THE RANGE xxx - xxx.
- This field shows the range that contains more than 90% of segment occurrences. This field is based on a more specific range that includes the average segment length.
Process Summary report
This report shows the summary of the process for each area.
IMS HPFP UTILITIES - HPIC DEDBPC "Process Summary Report" PAGE: 32
5698-FPP V2R1 2020-11-22 15:22:31
DBDNAME AREANAME AREA NO START DATE/TIME END DATE/TIME STATUS (If not blank, see messages in the message data sets.)
-------- -------- ------- ------------------- ------------------- --------------------------------------------------------
DEDBJN22 DB22AR2 3 2020-11-22 15:22:31 2020-11-22 15:22:32
DEDBJN22 DB22AR0 1 2020-11-22 15:22:31 2020-11-22 15:22:32
DEDBJN23 DB23AR2 2 2020-11-22 15:22:32 2020-11-22 15:22:32
DEDBJN23 DB23AR3 3 2020-11-22 15:22:32 2020-11-22 15:22:32
DEDBJN21 DB21AR0 1 2020-11-22 15:22:32 2020-11-22 15:22:32 - DBDNAME
- The name of DBD.
- AREANAME
- The name of the area.
- AREA NO
- The number of the area.
- START DATE/TIME
- The date and time when the HASH Check started for the area.
- END DATE/TIME
- The date and time when the HASH Check ended for the area.
- STATUS
- If HASH Check completed with no error, this column is blank. Otherwise,
either of the following messages is printed in this column:
- HASH check did not complete. Errors in JCL or in HPIC process.
- HASH check completed. Pointer errors were detected.