Estimating temporary data set sizes


The actual space needed for each temporary data set is affected by:

  • Length of the RMF and SMF interval
  • Length and number of modeling intervals
  • Number of objects of each type on your system, for example, z/OS images, DASD, Service Classes

Because of the difficulty in estimating temporary data set sizes, UIE assists you in the following ways:

  • During each execution, after reading all input SMF/RMF and subsystem data, UIE prints the Input File SMF Record Summary, which contains the following items for each record type and subtype used by UIE:
    • The number of records found in input files
    • The number of records selected for processing according to specified criteria (intervals, GMTOFF, BYPASS, PROCESS commands)
    • Date and time stamps of chronologically first and last records (in local time zones of the system where they were written by SMF). These time stamps represent the time when the record was sent to the SMF buffer, that is, the end of the interval covered by a particular record.

    • The total volume in megabytes of all records of a particular type or subtype

At the end of this summary, UIE prints the total record counts and volume.

Input File SMF Record Summary
 ************************************
  *  INPUT FILE SMF RECORD SUMMARY   *
  ************************************

***************************************************************************************************
REC TYPE/     FOUND  SELECTED  FIRST AND LAST RECORDS FOUND   SIZE   FIRST AND LAST RECORDS FOUND
SUBTYPE                         LOCAL SMF DATE & TIME (SEC)   (MB)       LOCAL DATE AND TIME
***************************************************************************************************
  6              30        11  110258  23380  110258  77395      0  15SEP2020 06:29 15SEP2020 21:29
 23            1724         0  110257  62100  110259   4240      0  14SEP2020 17:15 16SEP2020 01:10
 30/1         63838     62885  110257  61253  110259   7201     25  14SEP2020 17:00 16SEP2020 02:00
 30/2        400829    399421  110257  61259  110259   7135    878  14SEP2020 17:00 16SEP2020 01:58
 30/3        267259    266322  110126  81227  110259   1859    418  06MAY2020 22:33 16SEP2020 00:30
 30/4        283734    282791  110126  81227  110259   3659    532  06MAY2020 22:33 16SEP2020 01:00
 30/5         66301     65515  110126  81227  110259   3659    298  06MAY2020 22:33 16SEP2020 01:00
 42/6        385478     28810  110258      0  110258  85505    139  15SEP2020 00:00 15SEP2020 23:45
 70            2818      2303  110257  76500  110259   7200     19  14SEP2020 21:15 16SEP2020 02:00
 70/2          1616         0  110257  84576  110258  86376      1  14SEP2020 23:29 15SEP2020 23:59
 71            2838      2321  110257  76500  110259   7200      5  14SEP2020 21:15 16SEP2020 02:00
 72/1             0         0
 72/3        104734     84453  110257  76500  110259   7200    154  14SEP2020 21:15 16SEP2020 02:00
 72/4          1200         0  110257  76503  110258  86380     25  14SEP2020 21:15 15SEP2020 23:59
 73            2819      2304  110257  76501  110259   7200     57  14SEP2020 21:15 16SEP2020 02:00
 74/1         99604     79075  110257  76501  110259   7200   3145  14SEP2020 21:15 16SEP2020 02:00
 74/2          2158         0  110257  76502  110258  86380     35  14SEP2020 21:15 15SEP2020 23:59
 74/4          2157      1214  110257  76504  110258  86378     33  14SEP2020 21:15 15SEP2020 23:59
 74/5        198844     10387  110257  76504  110259   7202   4123  14SEP2020 21:15 16SEP2020 02:00
 74/6           350         0  110257  84576  110258  86380      0  14SEP2020 23:29 15SEP2020 23:59
 74/7          1848         0  110258    876  110258  86376      1  15SEP2020 00:14 15SEP2020 23:59
 74/8             0         0
 75           36016     28221  110257  76502  110259   7200      9  14SEP2020 21:15 16SEP2020 02:00
 77            1113         0  110257  76503  110259   7200      2  14SEP2020 21:15 16SEP2020 02:00
 78/2          2838      2321  110257  76501  110259   7200      5  14SEP2020 21:15 16SEP2020 02:00
 78/3          2404      1924  110257  84576  110259   7200     56  14SEP2020 23:29 16SEP2020 02:00
 85/1             0         0
 85/2             0         0
 85/3             0         0
 85/4             0         0
 85/5             0         0
 85/6             0         0
 85/7             0         0
 89/1          3069      2659  110257  61500  110259   7176      3  14SEP2020 17:05 16SEP2020 01:59
 89/2          2831      2784  110257  61500  110259   7176     12  14SEP2020 17:05 16SEP2020 01:59
 94             353         0  110257  79172  110258  86348      0  14SEP2020 21:59 15SEP2020 23:59
 99/6        251122    234256  110257  85502  110258  86397    468  14SEP2020 23:45 15SEP2020 23:59
100/I1        65095     65095  110258      4  110258  86396    153  15SEP2020 00:00 15SEP2020 23:59
100/I2        65096     65096  110258      5  110258  86396    265  15SEP2020 00:00 15SEP2020 23:59
101/I3       297379    297191  110258      1  110258  86398    613  15SEP2020 00:00 15SEP2020 23:59
101/I239     106599    106599  110258      3  110258  85140     93  15SEP2020 00:00 15SEP2020 23:39
103/1             0         0
103/2             0         0
110/1D            0         0
110/1E            0         0
110/1P          897       823  110258    180  110258  86379     17  15SEP2020 00:03 15SEP2020 23:59
110/S0            0         0
110/S2         3938       245  110258      0  110258  84780     64  15SEP2020 00:00 15SEP2020 23:33
110/S3            0         0
110/S4            0         0
110/S5            0         0
 113/2         1215         0  110257  83782  110258  85813      1  14SEP2020 23:16 15SEP2020 23:50
115/1          1827      1827  110257  84128  110258  86307      1  14SEP2020 23:22 15SEP2020 23:58
115/2          1827      1827  110257  84128  110258  86307     12  14SEP2020 23:22 15SEP2020 23:58
116/0        224489    223197  110257  83795  110258  86399     97  14SEP2020 23:16 15SEP2020 23:59
116/1          9692         0  110257  83795  110258  85810     16  14SEP2020 23:16 15SEP2020 23:50
116/2             0         0
 119           1536         0  110258    142  110258  86334      1  15SEP2020 00:02 15SEP2020 23:58
120/1            81         0  110258  51985  110258  85508      0  15SEP2020 14:26 15SEP2020 23:45
120/2             0         0
120/3            21        21  110258  52180  110258  86381      0  15SEP2020 14:29 15SEP2020 23:59
120/4             0         0
120/5             0         0
120/6             0         0
120/7            76         0  110258  51985  110258  85508      0  15SEP2020 14:26 15SEP2020 23:45
120/8            21        21  110258  52180  110258  86381      0  15SEP2020 14:29 15SEP2020 23:59
120/9           529       529  110258  40205  110258  85508      1  15SEP2020 11:10 15SEP2020 23:45
150               0         0
204               0         0
240          170953         0  110257  76500  110259   7200   2600  14SEP2020 21:15 16SEP2020 02:00
241             629         0  110258    247  110258  73954      0  15SEP2020 00:04 15SEP2020 20:32
DCDS              0         0
DCMON             0         0
DCVL          10285     10132  110259  13386  110259  13386      2  16SEP2020 03:43 16SEP2020 03:43
MVCICS            0         0
MVIMS             0         0
TMON              0         0
MVD/I1            0         0
MVD/I2            0         0
MVD/I3            0         0
MVD/I239          0         0

**********************************************************************
TOTAL RECORD COUNT IN INPUT FILE(S):     14694325
SIZE OF INPUT FILE (MB):                    19708
ANALYZED RECORD COUNT:                    3157322
SIZE OF ANALYZED RECORD:                    14384

UIE prints counts of records found by the system.

SMR Record Summary by Logical System Records Found
             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 1                  *
             ********************************************
**************************************************************************************************
SYSID     6        30/1      30/2      30/3      30/4      30/5      42/6      99/6      78/3      78/2
**************************************************************************************************
SYSA          0        22      1104        34        34        20       709      8579        48        48
SYSB          0         1       468         1         1         1        50      8634        48        48
SYSC          0       173      1012       512       515       172         0      6600        37        37
SYSD          0        28       482        33        33        27         0      8460        48        48

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 2                  *
             ********************************************
***************************************************************************************
SYSID    70      71      72/3    73      74/1    74/2    74/4    74/5    75      70/2
***************************************************************************************
SYSA       48      48    1392      48      48       0       0     528     240      48
SYSB       48      48    1296      48      48       0       0     432     192      48
SYSC       37      37     925      37      37       0       0     740     259      37
SYSD       48      48    1200      48      48       0       0     960     192      48

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 3                  *
             ********************************************
***************************************************************************************
SYSID   100/I1    100/I2    101/I3    101/I239  MVD/I1    MVD/I2    MVD/I3    MVD/I239
***************************************************************************************
SYSA      12004     12003      7044         0         0         0         0         0
SYSB        194       194         0         0         0         0         0         0
SYSC       3817      3817         0         0         0         0         0         0
SYSD      10232     10232    134227         0         0         0         0         0

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 4                  *
             ********************************************
*****************************************************************************
SYSID   115/1     115/2     116/0     116/1     116/2     MVIMS     DCMON
*****************************************************************************
SYSA        141       141       943         3         0         0         0
SYSB        142       142    186784         0         0         0         0
SYSB         44        44      1745         0         0         0         0
SYSD        142       142      1193       648         0         0         0

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 5                  *
             ********************************************
**************************************************************************************************
SYSID   110/1E    110/1D    110/1P    110/S0    110/S2    110/S3    110/S4    110/S5    MVCICS    TMON
**************************************************************************************************
SYSA          0         0       331         0      3048         0         0         0         0         0
SYSB          0         0       169         0       173         0         0         0         0         0
SYSC          0         0         0         0         0         0         0         0         0         0
SYSD          0         0       116         0       465         0         0         0         0         0

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 6                  *
             ********************************************
****************************************************************************************
SYSID   120/1    120/2    120/3    120/4    120/5    120/6    120/7    120/8    120/9
****************************************************************************************
SYSA         0        0        0        0        0        0        0        0        0
SYSB         0        0        0        0        0        0        0        0        0
SYSC         0        0        0        0        0        0        0        0        0
SYSD        81        0       21        0        0        0       76       21      529

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 7                  *
             ********************************************
*******************************************************************************
SYSID    89/1     89/2    103/1    103/2    150      204      240      241
*******************************************************************************
SYSA       316      283        0        0        0        0    33389        0
SYSB       110       92        0        0        0        0    28463        0
SYSC       312      288        0        0        0        0    43204        0
SYSD       287      287        0        0        0        0    12939        0

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 8                  *
             ********************************************
*******************************************************************************
SYSID    85/1     85/2     85/3     85/4     85/5     85/6     85/7     94
*******************************************************************************
SYSA         0        0        0        0        0        0        0        0
SYSB         0        0        0        0        0        0        0        0
SYSC         0        0        0        0        0        0        0        0
SYSD         0        0        0        0        0        0        0        0

             ********************************************
             *   SMF RECORD SUMMARY BY LOGICAL SYSTEM   *
             *               RECORDS FOUND              *
             *                  PART 9                  *
             ********************************************

*******************************************************************************
SYSID    72/4     72/1     74/6     74/7     74/8     119      23       113/2
*******************************************************************************
SYSA        96        0        0        0        0       52       24      288
SYSB        94        0        0        0        0      152       94      372
SYSC       150        0       62        0        0        8       92      267
SYSD       192        0       96        0        0       30       96      288

At the end of Input File SMF Record Summary, UIE prints the recommendations for small, medium, large, and extra large temporary files primary extent.

Recommendations based on Analysis of the Input Data Storage Requirements for the Primary Allocation of Temporary Files
 ******************************************************
 * RECOMMENDATIONS BASED ON ANALYSIS OF THE INPUT DATA *
 *       STORAGE REQUIREMENTS FOR THE PRIMARY         *
 *          ALLOCATION OF TEMPORARY FILES:            *
 ******************************************************
          ********************************
             FILE SIZE         CYLINDERS
             S (SMALL)             11
             M (MEDIUM)            88
             L (LARGE)            135
             X (EXTRA LARGE)      136
          ********************************
             DISK SPACE REQUIRED:
             TEMP FILES          1765
             SORT FILES           433
                  TOTAL:         2198
          ********************************

Each group of temporary files (small, medium, large, and extra large) contains many files that are different sizes. UIE makes a recommendation based on the size of the largest file in the group. You can decrease your temporary space requirements by specifying a smaller primary extent for a particular group and sufficient secondary extent sizes so that the recommended total size can be obtained in 2 to 3 extents. However, if you specified the recommended value as primary extent, you can be certain that the UIE has enough temporary space for processing all input files in this category.

Classifying temporary files into small, medium, large, and extra large groups is based on usual average record sizes and volumes. However, it is possible that in your particular environment, the volume of some record types is unusually high. So you might find (and it is not an indication of a problem or error), for example, that the recommended size for medium files is larger than recommended size for Large files.

At the end of the UIE Summary Report, UIE prints the DASD Space Used Report, ordered by DDname, Max Used, and Max Used by Size. These reports provide information about the space used by each temporary file. You can use the information in these reports for allocating individual temporary data sets if you need to minimize the total amount of DASD space that is used by the UIE job.

 

Tip: For faster searching, add an asterisk to the end of your partial query. Example: cert*