SYSPRINT DD data set

The SYSPRINT DD data set contains the statistics report that is generated by the OAE run.

Statistics report

Output statistics are generated showing the structure of the new area. A sample of the output statistics is shown in the following figure; it corresponds to the sample job in Figure 1, and assumes that the DBD sources are as follows:

Original AREA statement from DBD source:

   AREA DD1=DB21AR1,SIZE=(512),UOW=(2,1),ROOT=(2,1)  

New AREA statement from DBD source:

   AREA DD1=DB21AR1,SIZE=(512),UOW=(2,1),ROOT=(4,3)
Figure 1. OAE sample output statistics
FPX0099I Online Area Extender statistics:  

            Original Area Datasets
            ------------------------------------------------------------
            DDNames                Dataset Names  

            DB21AR11               DB21AR11
            DB21AR12               DB21AR12
            Extended Area Datasets
            ------------------------------------------------------------
            DDNames                Dataset Names  

            DB21AR13               DB21AR13
            DB21AR14               DB21AR14
                                     Original Area                Extended Area
                                     Datasets                     Datasets
                                     -------------                -------------  

             New RAP and IOVF Size                                        5,120
             Min. allocated Area Size                                    75,264  

             First SDEP RBA (HEX)                                      00001800
             Oldest SDEP RBA (HEX)        00007200
             Next Aval. SDEP RBA (HEX)    00009200  

             Area Dataset Size              50,176                       75,264
             CI Size                           512                          512
             CIs / UOW                           2                            2
             DOVF CIs / UOW                      1                            1  

             RAP Size (BLKS)                     2                            2
             RAP Size (Bytes)                1,024                        1,024
             First IOVF CI #                     4                            4
             # of Space Map CIs                  1                            1
             IOVF Usable Size (BLKS)             1                            5
             IOVF Usable Size (BYTES)          512                        2,560
             IOVF Usable Size Change (BLKS)                                   4  

             First Reorg CI #                    6                           10  

             First SDEP CI #                     8                           12
             SDEP Size (BLKS)                   90                          135
             SDEP Size (Bytes)              46,080                       69,120
             SDEP Size Change (BLKS)                 INCREASE                45

This discussion focuses on the statistics report, breaking the report down into its component parts.

  • The following identifies the DD names and data set names associated with the active ADS(S) for the area. These ADS(s) will become inactive after a successful OAE run.
      Original Area Datasets
      ------------------------------------------------------------
      DDNames                Dataset Names  
    
      DB21AR11               DB21AR11
      DB21AR12               DB21AR12
  • The following identifies the DD names and data set names associated with the extended ADS(S) for the area. These ADS(s) will become active after a successful OAE run.
      Extended Area Datasets
      ------------------------------------------------------------
      DDNames                Dataset Names  
    
      DB21AR13               DB21AR13
      DB21AR14               DB21AR14
  • The following shows the size of the RAP/IOVF/RUOW portion of the area as a result of the new values coded for ROOT=(number2,overflow2) for the extended ADS.
                               Original Area                Extended Area
                               Datasets                     Datasets
                               -------------                -------------  
    
       New RAP and IOVF Size                                        5,120
  • The following shows the VSAM allocation for the smallest of the Extended ADS data sets indicated in the preceding figure.
       Min. allocated Area Size                                   75,264
  • The following shows the First SDEP RBA of the extended ADS, and the Oldest SDEP RBA and the Next Available SDEP RBA of the original ADS. These three values can be used to determine whether an IOVF extension will overlap with the CSC portion of the area.
       First SDEP RBA (HEX)                                      00001800
       Oldest SDEP RBA (HEX)        00007200
       Next Aval. SDEP RBA (HEX)    00009200
  • This shows the CI and UOW-related statistics for both the original and extended ADS.
       Area Dataset Size              50,176                       75,264
       CI Size                           512                          512
       CIs / UOW                           2                            2
       DOVF CIs / UOW                      1                            1
  • The following shows the RAP-related statistics for both the original and extended ADS.
       RAP Size (BLKS)                     2                            2
       RAP Size (Bytes)                1,024                        1,024
  • The following are IOVF-related statistics for both the original and extended ADS.
       First IOVF CI #                     4                            4
       # of Space Map CIs                  1                            1
       IOVF Usable Size (BLKS)             1                            5
       IOVF Usable Size (BYTES)          512                        2,560
       IOVF Usable Size Change (BLKS)                                   4
  • The following shows RUOW-related statistics for both the original and extended ADS.
       First Reorg CI #                    6                           10
  • The following shows SDEP-related statistics for both the original and extended ADS. The final line shows whether there was a net increase or decrease in the SDEP area.

    For the statistics which indicate a CI number (First IOVF CI#, First REORG #, First SDEP CI #), the number indicates any offset from the number 1. For example, a value of 6 for the First IOVF CI # indicates that the CI is the seventh (7th).

       First SDEP CI #                     8                           12
       SDEP Size (BLKS)                   90                          135
       SDEP Size (Bytes)              46,080                       69,120
       SDEP Size Change (BLKS)                 INCREASE                45
If image copies are extended along with DEDB area extension, the following additional information is printed in the SYSPRINT data set.
  • The following figure shows the original last image record, which is the last image record in the RECON data sets before OAE extends the latest image copy data set.
          Original last image record                                                     
          ------------------------------------------------------------                   
          IMAGE                                                                         
          2021.319 14:53:58.092851 +09:00     LISTING OF RECON               
            RUN     = 2021.319 14:53:28.165510 +09:00*  RECORD COUNT = 12120        
            STOP    = 0000.000 00:00:00.000000 +00:00   BATCH      USID=0000000001       
                                                                                       
           IC1                                                                           
            DSN=HPFP.DB21AR1.IC1.G0001V00                    FILE SEQ=0001               
            UNIT=3400                          VOLS DEF=0001 VOLS USED=0001              
                                             VOLSER=HFPVOL                             
                                                                                       
           IC2                                                                           
            DSN=HPFP.DB21AR1.IC2.G0001V00                    FILE SEQ=0001               
            UNIT=3400                          VOLS DEF=0001 VOLS USED=0001              
                                               VOLSER=HFPVOL             
  • The following figure shows the extended last image record, which is the last image record in the RECON data sets after OAE extended the latest image copy data set.
          Extended last image record                                                     
          ------------------------------------------------------------                   
          IMAGE                                                                         
          2021.319 14:54:03.163345 +09:00     LISTING OF RECON               
            RUN     = 2021.319 14:53:28.165510 +09:00*  RECORD COUNT =12720                 
            STOP    = 0000.000 00:00:00.000000 +00:00   BATCH      USID=0000000001       
                                                                                     
           IC1                                                                           
            DSN=HPFP.DB21AR1.IC1.G0002V00                    FILE SEQ=0001               
            UNIT=3390                          VOLS DEF=0001 VOLS USED=0001              
                                               VOLSER=VOLIC1                            
                                                                                     
           IC2                                                                           
            DSN=HPFP.DB21AR1.IC2.G0002V00                    FILE SEQ=0001               
            UNIT=3390                          VOLS DEF=0001 VOLS USED=0001              
                                               VOLSER=VOLIC2     
  • The following figure shows the CHANGE.IC command list. These commands were issued to update the last image record in the RECON data sets after OAE extended the latest image copy data set.
          CHANGE.IC command list                                       
          ------------------------------------------------------------ 
          CHANGE.IC DBD(DEDBJN21) AREA(DB21AR1 )                      
          RECTIME('21319145328165510+0900')                           
          FILESEQ(0001)  RECDCT(0000012720)  UNIT(3390    )       
          ICDSN(HPFP.DB21AR1.IC1.G0002V00                   )        
          VOLLIST(VOLIC1)                                             
                                                                   
          CHANGE.IC DBD(DEDBJN21) AREA(DB21AR1 )                      
          RECTIME('21319145328165510+0900')                           
          FILESEQ2(0001)  RECDCT(0000012720) UNIT2(3390    )           
          ICDSN(HPFP.DB21AR1.IC2.G0002V00                   )         
          VOLLIST2(VOLIC2)