See Figure 3 for an example of JCL for CRURRSV. For information on execution parameters on the EXEC statement, see the section CRURRAP Parameters. The DD statements are described below.

• SYSPRINT - the output data set for reports, normally SYSOUT. LRECL, BLKSIZE, and RECFM DCB information is provided by CRURRSV and will therefore be ignored if provided on the DD statement. You may specify additional buffers with the BUFNO DCB subparameter in the JCL if you wish, but in view of the small amount of output this does not appear to be worthwhile.
• SYSLOG - the output data set for log messages, normally SYSOUT. DCB information is provided by CRURRSV and will be ignored if provided on the DD statement. You may specify additional buffers with the BUFNO DCB parameter in the JCL if you wish, but in most cases you are unlikely to get enough SYSLOG output to make this worthwhile.
• SMFIN - the SMF input data set. No LRECL/BLKSIZE/RECFM information is provided by the program. You do not need to provide DCB information in the JCL unless this data set is a non-labelled tape. In other cases, (standard labelled tape, DASD data set) the DCB information will be acquired from the data set label. Performance can be improved when large amounts of SMF data are processed by provision of additional buffers (with the BUFNO DCB subparameter). The default is 5 buffers. Virtual storage requirements for additional buffers must be added to the region size requirements for the program (see Specified Operating Environment).
• EXPIN - the EXPORT input data set. No LRECL/BLKSIZE/RECFM information is provided by the program. You do not need to provide DCB information in the JCL unless this data set is a non-labelled tape. In other cases, (standard labelled tape, DASD data set) the DCB information will be acquired from the data set label. Performance can be improved when large amounts of EXPORT data are processed by provision of additional buffers (with the BUFNO DCB subparameter). The default is 5 buffers. Virtual storage requirements for additional buffers must be added to the region size requirements for the program (see Specified Operating Environment).
• EXPOUT - the EXPORT output data set. The program copies the LRECL, BLKSIZE, and RECFM information for the EXPIN data set to the EXPOUT data set's DCB. Therefore if these DCB subparameters are specified in the JCL they will be ignored. Performance can be improved when large amounts of EXPORT data are processed by provision of additional buffers (with the BUFNO DCB subparameter). The default is 5 buffers.