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The DSNJCNVB Utility
If you do not convert the BSDS, only 1,000 archive log volumes and 31 active log data sets per log copy can be managed. The DSNJCNVB utility should be executed as a batch job only when DB2 is not operational. Furthermore, DSNJCNVB can only be run on a DB2 V8 subsystem in new-function mode. Although converting the BSDS is optional, it is highly recommended for large or highly-active DB2 shops . Expand the Size of the BSDS Before ConvertingIf you have migrated to V8 from aprevious version of DB2, you will need to create a larger BSDS before converting it with DSNJCNVB . After you have migrated to V8 new-function mode, execute the following steps to prepare to run the DSNJCNVB utility:
Finally, after expanding the size of your BSDSs, you can invoke the conversion utility, DSNJCNVB , using the JCL snippet shown in Listing 34.1. The SYSUT1 and SYSUT2 DDNAME s specify the data sets for copy 1 and copy 2 of the BSDS. Listing 34.1. DSNJCNVB JCL//DSNJCNVB EXEC PGM=DSNJCNVB //STEPLIB DD DISP=SHR,DSN=DB2P.SDSNEXIT // DD DISP=SHR,DSN=DB2P.SDSNLOAD //SYSUT1 DD DISP=OLD,DSN=DB2P.BSDS01 //SYSUT2 DD DISP=OLD,DSN=DB2P.BSDS02 //SYSPRINT DD SYSOUT=* |
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