Interval Free Space Summary report
This report contains a summary of the free space for each processing interval defined by INTERVAL keyword on the OPTION statement in histogram format.
The report is produced each time an interval (defined by INTERVAL keyword on the OPTION statement) is processed. Each value in the report is the cumulative value of each interval that has been reported before, and will be accumulated to the next report.
This report is produced unless INTFS= NO is specified on the REPORT statement as input for the PROCCTL data set. This report is separated into two pages. This report is available only for HD databases.
Report example
The following figures show an example of the report.
IMS HIGH PERFORMANCE POINTER CHECKER FOR z/OS "INTERVAL FREE SPACE SUMMARY REPORT" PAGE: 1 5655-U09 DATE: 07/07/2021 TIME: 15.59.40 FABPMAIN - V3.R1 DBNAME: HDAMDB2 DB#: 001 DSG#: 01 DDNAME: HDAMDS4 DSNAME: TESTDS.PUBLIC.SAMPLE.HDAMDS4 DBORG: HDAM INTERVAL: START BLOCK 1 END BLOCK 2474 FREE SPACE (BYTES) # OF FSE # OF BLOCKS TOTAL BYTES AVG FSE LEN CUMUL # OF FSE NO FREE SPACE 1 1 TO 20 0 0 0 0 2473 21 TO 40 1 1 36 36 2473 41 TO 60 130 130 7628 58 2472 61 TO 80 510 510 36704 71 2342 81 TO 100 1563 1563 138528 88 1832 101 TO 120 38 38 4104 108 269 121 TO 140 0 0 0 0 231 141 TO 160 0 0 0 0 231 161 TO 180 0 0 0 0 231 181 TO 200 0 0 0 0 231 ------ For formatting purposes, several lines have been deleted.------ 501 TO 550 36 36 19320 536 230 551 TO 600 0 0 0 0 194 601 TO 650 0 0 0 0 194 651 TO 700 0 0 0 0 194 701 TO 750 0 0 0 0 194 751 TO 800 0 0 0 0 194 801 TO 850 0 0 0 0 194 851 TO 900 0 0 0 0 194 901 TO 950 0 0 0 0 194 951 TO 1000 0 0 0 0 194 IMS HIGH PERFORMANCE POINTER CHECKER FOR z/OS "INTERVAL FREE SPACE SUMMARY REPORT" PAGE: 2 5655-U09 DATE: 07/07/2021 TIME: 15.59.40 FABPMAIN - V3.R1 DBNAME: HDAMDB2 DB#: 001 DSG#: 01 DDNAME: HDAMDS4 DSNAME: TESTDS.PUBLIC.SAMPLE.HDAMDS4 DBORG: HDAM FREE SPACE (BYTES) # OF FSE # OF BLOCKS TOTAL BYTES AVG FSE LEN CUMUL # OF FSE 1001 TO 1100 194 194 196144 1011 194 1101 TO 1200 0 0 0 0 0 1201 TO 1300 0 0 0 0 0 1301 TO 1400 0 0 0 0 0 1401 TO 1500 0 0 0 0 0 1501 TO 1600 0 0 0 0 0 1601 TO 1700 0 0 0 0 0 1701 TO 1800 0 0 0 0 0 1801 TO 1900 0 0 0 0 0 1901 TO 2000 0 0 0 0 0 2001 TO 2200 0 0 0 0 0 2201 TO 2400 0 0 0 0 0 2401 TO 2600 0 0 0 0 0 2601 TO 2800 0 0 0 0 0 2801 TO 3000 0 0 0 0 0 3001 TO 3200 0 0 0 0 0 3201 TO 3400 0 0 0 0 0 3401 TO 3600 0 0 0 0 0 3601 TO 3800 0 0 0 0 0 3801 TO 4000 0 0 0 0 0 4001 TO 0 0 0 0 0 TOTALS 2473 N / A 402670 N / A N / A % OF TOTAL BLOCKS TOTAL FREE SPACE IN BYTES = 402670 15 COUNT OF BLOCKS WITHOUT FREE SPACE = 1 0 COUNT OF BLOCKS CONTAINING REUSABLE FREE SPACE = 231 9 COUNT OF EMPTY BLOCKS = 194 7 REUSABLE FREE SPACE BYTES (BITMAP) = 215670 8 NOTE : THESE STATISTICS REPORT ALL FREE SPACE RANGES. ---- THE BIT MAP STATISTICS REPORT ONLY SPACE FOR THE LONGEST SEGMENT IN THE DATA SET GROUP
Report field description
The
report fields are as follows:
- DBNAME DB# PARTNAME PART ID REORG# DSG# DDNAME DSNAME DBORG
- The name of the DBD, the database number (in hexadecimal), the name of the partition, partition id, partition reorganization number, the data set group number (in hexadecimal) or the data set group ID (in an alphabetic character), the ddname of this data set group, the name of the data set, and the organization type of the data set
- INTERVAL: START BLOCK, END BLOCK
- The beginning number and the ending number of the interval block
to be reported
The following six fields are the column headings of the histograms:
- FREE SPACE (BYTES)
- This column defines the histogram classes. Each class is 20 bytes wide.
- # OF FSE
- The number of free space elements (whose lengths are in the current
histogram class) that were found up to the end of this processing
interval Note: The sum of the entries in this column is the total number of free space elements detected by the SCAN processor.
- # OF BLOCKS
- The number of database blocks or CIs that contain free space elements (whose lengths are in the
current histogram class) that were found up to the end of this processing interval Note: Some blocks might contain more than one free space element. Because this can cause some blocks to be counted in more than one "# OF BLOCKS" entry, the sum of all the entries in this column might be greater than the total number of blocks processed.
- TOTAL BYTES
- The total number of bytes of free space from all free space elements
(whose lengths are in the current histogram class) that were found
up to the end of this processing interval Note: The sum of the entries in this column is the total number of bytes of free space detected by the SCAN processor.
- AVG FSE LEN
- The average length of all free space elements (whose lengths are in the current histogram class) that were found up to the end of this processing interval
- CUMUL # OF FSE
- The number of free space elements (whose lengths are in the current histogram class or in a larger histogram class) that were found up to the end of this processing interval
The remaining fields in this report are self-explanatory.