Control statements

Optional IMS™ HP Load control statements can be specified on the FRRIN data set.

Tip: Some of the control statement keywords and their values can be set as the default options for your runtime environment. For details about setting the default options, see Setting installation default options.

Overview of control statements
IMS HP Load supports various options to control the behavior of IMS HP Load jobs.
BMSETDSG control statement
Specifies the threshold value that is used to set the bitmap block of an HDAM, an HIDAM, a PHDAM, or a PHIDAM database. The value can be specified for each data set group (DSG).
BUFFERNO control statement
Specifies the number of database buffers that are used for one database data set group when reading or writing the database.
CHKEMPTYUL control statement
Specifies whether to check if the unloaded data set contains segment data. Also, specifies the return code that is set when no segment data is found in the unloaded data set.
CHKTRAIL control statement
Specifies whether to check if a trailer record exists in the *HD or *SH format of the unload data set.
CHKUPDT control statement
Specifies whether you want to do the IMS HP Load check against DBRC to see if an update of the database has been done between unload and reload processes.
COMPAUTH control statement
Specifies whether to call the segment compression exit in supervisor state.
COMPRESS control statement
Specifies whether to use a segment compression exit. This statement activates or deactivates calling the segment compress routine for all segment types with COMPRTN specified on their related SEGM statements in the DBD.
DATXEXIT control statement
Specifies whether to activate the IMS/ESA® Year 2000 Exit Tool (5697-E04) support.
DBDSNAP control statement
Specifies whether to generate a snap dump report of the DBD.
DBIOBUF control statement
Specifies the number of tracks for the access method (VSAM or BSAM) buffers that are used for one database data set group when the database is read or written to.
DBRLBUF control statement
Specifies the number of database buffers (the number of tracks) to be used for one database data set group when the database is being read or written.
EXTENT control statement
Specifies the maximum number of extensions of the OSAM data set that can be created. IMS HP Load checks the extension number of a reorganized data set after its reorganization. When the extension number is larger than what you specified on the EXTENT control statement, IMS HP Load issues a user abend.
FRSPC control statement
Specifies whether IMS HP Load secures free space according to the specification of the FRSPC parameter in DBD.
GDGBASE control statement
Specifies whether to create a generation data group (GDG) base entry when a GDG base entry does not exist.
GDGLIMIT control statement
Specifies the maximum number of generation data sets (GDS) that can be associated with the generation data group (GDG) that is to be created.
HPIO control statement
Specifies whether IMS HP Load uses the High Performance I/O Driver for output database data sets.
ILDSBLD control statement
Specifies whether to build ILDS and how to build the ILDS.
ILEDATAC control statement
Specifies the name of the data class for the HPSRILEA and HPSRILEB data sets.
ILESTORC control statement
Specifies the name of the storage class for the HPSRILEA and HPARILEB data sets.
INPUT control statement
Specifies the input source of the HD unloaded data set and specifies whether IMS HP Load invokes a user exit routine.
ITKBLOAD control statement
Specifies the name of the load module library for IMS Tools Knowledge Base.
ITKBSRVR control statement
Specifies the name of the IMS Tools KB server.
LPART control statement
Specifies the HALDB partitions to load.
OADSPR control statement
Specifies whether IMS HP Load reduces the usage of data space when processing the overflow area by using the High Performance I/O driver or by using an OVERFLOW DD. This specification is valid only for HDAM or PHDAM databases.
PAD control statement
Specifies the padding character to fill out the segments to adjust to the length defined in the DBD definition.
PARTINIT control statement
Specifies whether to initialize HALDB partitions after reload. IMS HP Load initializes a HALDB partition when a HALDB partition does not contain any segment during reload. The PARTINIT control statement is valid only for a HALDB.
PARTSTAT control statement
Specifies whether the partition-wide occurrence count report is generated. This specification is valid only for entire database reload of a partitioned database.
PROGMON control statement
Specifies whether IMS HP Load issues a progress monitoring message at the specified intervals.
RAAFORMAT control statement
Specifies whether IMS HP Load is to format HDAM or PHDAM RAA blocks regardless of the number of blocks used. Once the overflow area is used, this parameter is ignored and the entire RAA is formatted. This specification is valid only for HDAM or PHDAM databases.
RECNUM control statement
Specifies the number of unloaded records to be reloaded. It helps to optimize the DFSORT main storage and the allocation of the intermediate storage data sets.
REPAIRILK control statement
Specifies whether to reassign indirect list keys (ILKs). In reassigning ILKs, IMS HP Load uses new RBA, partition ID, and reorganization number.
RMBSEGSZ control statement
Specifies how IMS HP Load calculates the database record size to determine whether to put the records to the overflow area.
SEARCH control statement
Specifies the limit value for a space search algorithm that finds a segment that does not fit in its home block. This specification is valid for HDAM or PHDAM databases.
SEQERROR control statement
Specifies how to handle key sequence errors in the input unloaded data.
SORT control statement
Specifies whether to run the physical sequential sort processing before loading. This specification is valid only for HDAM and PHDAM databases.
SORTHIDAM control statement
Specifies whether to run the sort processing before loading a HIDAM or a PHIDAM.
TWINSTAT control statement
Specifies whether to print statistics about the twin chained segments.
USEREXIT control statement
Specifies whether IMS HP Load invokes a user exit routine.
USERHDR control statement
Specifies the name of the element of the header portion of the unloaded record to read the customized unload file.
USERHDRX control statement
Specifies whether IMS HP Load invokes the user header conversion exit routine.
WF1DSN control statement
Specifies the data set name for the DFSURWF1 data set when allocating the data set dynamically.
WF1REC control statement
Specifies whether to write WF1 records in the DFSURWF1 or in HPSRSINDX output work data set, which is used as an input to resolve a logical or secondary index relationships. The WF1REC control statement is not valid for a HALDB.
WF1SPACE control statement
Specifies the space parameter for the DFSURWF1 data set when allocating the data set dynamically.
WF1UNIT control statement
Specifies the device for the DFSURWF1 data set when allocating the data set dynamically.
WF1VOL control statement
Specifies one or more volume names for the DFSURWF1 data set that is to be dynamically allocated.
WFPHLQ control statement
Specifies the high-level qualifier for the WFP data sets.
WFPSPACE control statement
Specifies the SPACE parameter for the WFP data sets when allocating WFP data sets dynamically.
WFPUNIT control statement
Specifies the device for the WFP data sets when allocating WFP data sets dynamically.
WFPVOL control statement
Specifies the volume names for the WFP data sets when allocating WFP data sets dynamically.
WFPVOLCNT control statement
Specifies the volume count for the WFP data sets when allocating WFP data sets dynamically.

Parent topic: Reloading IMS databases with IMS High Performance Load