SAS/ACCESS 9.2 for Relational Databases: Reference, Fourth Edition

246 BL_DISK_PARALLELISM= Data Set Option 4 Chapter 11When the number of records in the bad data file for the job reaches the specifiednumber of discarded records, job processing stops.Enter 0 to disable this option. This option is ignored for extraction.See Also“BL_BADDATA_FILE= Data Set Option” on page 211“BULKEXTRACT= Data Set Option” on page 289BL_DISK_PARALLELISM= Data Set OptionSpecifies the number of processes or threads to use when writing data to disk.Default value: noneValid in: DATA and PROC steps (when accessing DBMS data using SAS/ACCESSsoftware)DBMS support: DB2 under UNIX and PC HostsSyntaxBL_DISK_PARALLELISM=number of processes or threadsSyntax Descriptionnumber of processes or threadsspecifies the number of processes or threads that the load utility uses to write datarecords to the table-space containers.DetailsTo specify this option, you must first set BULKLOAD=YES.This option exploits the available containers when it loads data and significantlyimproves load performance.The maximum number that is allowed is the greater of four times theBL_CPU_PARALLELISM value—which the load utility actually uses—or 50. Bydefault, BL_DISK_PARALLELISM is equal to the sum of the table–space containers onall table spaces that contain objects for the table that is being loaded except where thisvalue exceeds the maximum number that is allowed.If you do not specify a value, the utility selects an intelligent default that is based onthe number of table-space containers and the characteristics of the table.See AlsoFor more information about using this option, see the DISK_PARALLELISMparameter in the IBM DB2 Universal Database Data Movement Utilities Guide andReference.“BL_CPU_PARALLELISM= Data Set Option” on page 216“BL_DATA_BUFFER_SIZE= Data Set Option” on page 217“BULKLOAD= Data Set Option” on page 290