DSNZPARM Utility Parameters
This panel displays information about the parameters that affect Db2 utility default settings. It shows the name of the DSNZPARM module that is specified for Db2 startup and the date on which the module is assembled. It also shows a list of the default values of the DB2® application.
If a field is not available for the current Db2 release,
the string N/A
is displayed. For other conditions, for example, if specific Db2 traces are not started or control block data is not available,
the string N/P
is displayed.
> Help PF1 Back PF3 Left PF10 Right PF11
> R.H.L
> DSNZPARM INFORMATION: Enter a selection letter on the top line.
> A-THREAD B-TRACE C-LOGGING D-ARCHIVING E-AUTH/RLF/DDF F-IRLM
> G-STORAGE H-DATASET I-DDCS J-DATA SHARING K-STORED PROC *-UTIL
> M-APPL N-DATA O-PERF P-BUFFERPOOL Q-OTHERS
===============================================================================
> DSNZPARM UTILITY PARAMETERS
ZUTL
+ Collection Interval: REALTIME SNAPTIME: 07/08/16 11:48:37.88
+
+ DSNZPARM Module DSNZPARM
+ Assembly Date 04/14/16
+ Initial Module DSNZPARM
+ Assembly Date 04/14/16
+ Previous Module DSNZPARM
+ Assembly Date 04/14/16
+
+ DSNTIP6-Utility Parms 1
+------------------------------------
+ Temp DS Unit Name (VOLTDEVT) SYSDA
+ (UTIL_TEMP_STORCLAS)
+ Statistics History (STATHIST) NONE
+ Statistics Rollup (STATROLL) YES
+ Utility Timeout (UTIMOUT) 6
+ UT Sort DS Allocation (UTSORTAL) N/A
+ Ignore Sortnum Stmt (IGNSORTN) NO
+ Set Check Pending (CHECK_SETCHKP) N/A
+ UT DB2 Sort Use (DB2SORT) N/A
+ Template Time (TEMPLATE_TIME) UTC
+ Max Utils Parallel (PARAMDEG_UTIL) 99
+ (STATCLGSRT)
+ (STATPGSAMP)
+ (LOAD_RO_OBJECTS)
+ (UTILS_BLOCK_FOR_CDC)
+
+ DSNTIP61-Utility Parms 2
+------------------------------------
+ (COPY_FASTREPLICATION) PREFERRED
+ Fast Restore (REC_FASTREPLICATION) PREFERRED
+ (FLASHCOPY_PPRC) REQUIRED
+ (FLASHCOPY_XRCP)
+ Default Template (FCCOPYDDN) DBC1.&DB..&SN..N&DSNUM..&UQ.
+ Copy (FLASHCOPY_COPY) NO
+ Load (FLASHCOPY_LOAD) NO
+ (FLASHCOPY_REORG_TS) NO
+ (FLASHCOPY_REBUILD_INDEX) NO
+ (FLASHCOPY_REORG_INDEX) NO
+
+ DSNTIP62-Utility Parms 3
+------------------------------------
+ (SYSTEM_LEVEL_BACKUPS) NO
+ (RESTORE_RECOVER_FROMDUMP) NO
+ (UTILS_DUMP_CLASS_NAME)
+ Max Tape Units (RESTORE_TAPEUNITS) 0
+ (REORG_IGNORE_FREE_SPACE) N/A
+ Alternate Copy Pool (ALTERNATE_CP)
+ DB Backup STG Group (UTIL_DBBSG)
+ LOG Backup STG Group (UTIL_LGBSG)
+ (UTILS_HSM_MSGDS_HLQ) N/P
+
+ DSNTIP63-Utility Parms 4
+------------------------------------
+ (REORG_PART_SORT_NPSI) AUTO
+ (REORG_LIST_PROCESSING) PARALLEL
+ (REORG_MAPPING_DATABASE)
+ (REORG_DROP_PBG_PARTS) DISABLE
+ (REORG_TS_NOPAD_DEFAULT) Y
+ (REORG_INDEX_NOSYSUT1) N
+ (REORG_IC_LIMIT_DASD) 0
+ (REORG_IC_LIMIT_TAPE) 0
+ (UTILS_USE_ZSORT) N
+ (LOAD_DEL_IMPLICIT_SCALE) N
+ (UTILITY_HISTORY) N
===============================================================================
Fields
The DSNZ command displays the following lines to reflect the usage of the Db2 SET SYSPARM command. To each of these lines, the corresponding date on which this particular module is assembled is displayed.
- DSNZPARM Module
- The name of the DSNZPARM module that is specified for Db2 startup.
- Initial Module
- The name of the initial DSNZPARM load module.
- Previous Module
- The name of the previous DSNZPARM load module.
- Assembly Date
- The date on which this module was assembled.
- Temp DS Unit Name (VOLTDEVT) (QWP4VDTY)
- This parameter determines the device type for temporary data sets.
- (UTIL_TEMP_STORCLAS) (QWP4CHEC)
- This parameter determines the name of the SMS storage class that is used by Db2 to define temporary shadow data sets. A blank value indicates that the temporary shadow data sets are defined in the same storage class as the production page set.
- Statistics History (STATHIST) (QWP4STHT)
- This parameter determines the default for the statistics history. Depending on the specified value, catalog changes that are made by DB2 are recorded in the catalog history tables.
- Statistics Rollup (STATROLL) (QWP4STRL)
- This parameter determines the default for the statistics rollup. It controls whether the RUNSTATS utility aggregates partition-level statistics.
- Utility Timeout (UTIMOUT) (QWP4UTO )
- This parameter determines the utility timeout factor.
- UT Sort Data Allocation (UTSORTAL) (QWP3SRAL)
- Indicates that the utility will use sortnum elimination logic for sort tasks.
- Ignore Sortnum Stmt (IGNSORTN) (QWP4IGSN)
- This parameter determines whether the SORTNUM keyword specification in a UT JOB STMT is ignored.
- Set Check Pending (CHECK_SETCHKP) (QWP4CSCP)
- Specifies whether the check data and the check LOB utilities should place inconsistent objects in a check pending status. When these utilities detect an inconsistency in an object, they write a diagnostic message and end with return code 4.
- UT DB2 Sort Use (DB2SORT)
- Enables the use of the DB2 sort product from utilities when it is installed. DFSORT is used otherwise. Valid values are ENABLE (default) and DISABLE. Db2 10 and Db2 11 only.
- Template Time (TEMPLATE_TIME) (QWP4TPTM)
- This parameter determines the default setting for the TIME option of the Db2 UTILITIES TEMPLATE statement.
- Max Utils Parallel (PARAMDEG_UTIL) (QWP4UMD )
- This parameter determines the maximum degree of parallelism that is allowed when a Db2 utility is driving parallelism.
- (STATCLGSRT) - (QWP4STACS)
- The STATCLGSRT subsystem parameter specifies how the sort program is to be used by
the RUNSTATS utility or by an inline statistics job when collecting statistics on a
single column that is defined with the COLGROUP option.
ZPARM NAME: DSN6SPRM.STATCLGSRT
Range: 0 - 4096 MB
Default: 10
- 0
- An indication that a data sort is always performed.
- 1 - 4096
- The amount of memory space for the utility to use to avoid the data sort. Values are specified in megabytes (for example, 4096, which is the maximum allowable value). Increasing the value might be necessary when utility jobs specify a large number of single-column COLGROUPs, and message DSNU1388I is issued. Although histogram statistics can be collected in the same RUNSTATS or inline statistics job, any COLGROUPs for which histogram statistics are being collected are not eligible for the sort-avoidance performance improvement. You can override the STATCLGSRT value for a particular utility job by specifying the STATCLGMEMSRT option on the utility statement.
- (STATPGSAMP) - (QWP4STACS)
- The STATPGSAMP subsystem parameter specifies whether the RUNSTATS utility uses
page-level sampling by default for universal table spaces.
Default: S (SYSTEM)
ZPARM NAME: DSN6SPRM.STATPGSAMP
- (LOAD_RO_OBJECTS) (QWP4LIRO)
- Specifies whether Db2 utilities allow LOAD on all SHRLEVELs including the data loading and inserting cases to load into read-only (RO) objects.
- (UTILS_BLOCK_FOR_CDC) (QWP4UBCDC)
- Specifies whether to block the utilities below for tables with replication enabled (i.e. a table DATA CAPTURE CHANGES attribute) or table spaces which contain such tables:
- (COPY_FASTREPLICATION) (QWP4CYFR)
- This parameter specifies for the COPY utility whether FlashCopy fast replication is preferred, required, or not used for the creation of the FlashCopy image copy.
- Fast Restore (REC_FASTREPLICATION) (QWP4RFRP)
- This parameter determines whether FlashCopy® is used by the RECOVER utility to recover from a FlashCopy image copy.
- (FLASHCOPY_PPRC) (QWP4FCPPRC)
- This parameter determines the behavior for DFSMSDSS FlashCopy requests by Db2 utilities when the target disk storage volume is the primary device in a peer-to-peer remote copy (PPRC) relationship. A PPRC relationship exists when a Db2 utility is using DFSMSDSS FlashCopy technology to create a FlashCopy image copy or shadow data sets (for the online check utility) and the target disk storage volume is mirrored by another disk device on a different system.
- (FLASHCOPY_XRCP) - (QWP4FCXC)
- The FLASHCOPY_XRCP subsystem parameter specifies whether a data set level FlashCopy operation is
allowed to a primary volume in an XRC relationship when the z/OS DFSMSdss support for RPFC for XRC
is installed and enabled.
ZPARM NAME: DSN6SPRM.FLASHCOPY_XRCP
Valid values are:
- Y
- (Default) If z/OS DFSMSdss support for RPFC in XRC is installed and enabled, supported
utilities specify the FCTOXRCPrimary option when they issue DFSMSdss COPY commands. YES is ignored
in the following situations:
- For CHECK utilities, if the CHECK_FASTREPLICATION subsystem parameter value is NONE.
- For the RECOVER utility, if the REC_FASTREPLICATION subsystem parameter value is NONE.
- N
- The utilities do not specify the FCTOXRCPrimary option when they issue DFSMSdss COPY commands.
- Default Template (FCCOPYDDN) (QWP4FCCD)
- Offset from the beginning of QWP4 to QWP4FCCD.
- Copy (FLASHCOPY_COPY) (QWP4FCCP)
- This parameter determines whether the COPY utility is using FLASHCOPY=YES and the system parameter settings for FCCOPYDDN when these keywords are not included in the utility control statement.
- Load (FLASHCOPY_LOAD) (QWP4FCLD)
- This parameter defines whether the LOAD utility is using FLASHCOPY=YES and the system parameter setting for FCCOPYDDN when these keywords are not included in the utility control statement.
- (FLASHCOPY_REORG_TS) (QWP4FROT)
- This parameter determines whether the REORG TABLESPACE utility is using FLASHCOPY=YES and the system parameter setting for CCOPYDDN when these keywords are not included in the utility control statement.
- (FLASHCOPY_REBUILD_INDEX) (QWP4FRBI)
- This parameter determines whether the REBUILD INDEX utility is using FLASHCOPY=YES and the system parameter setting for FCCOPYDDN when these keywords are not included in the UTILITY CONTROL statement.
- (FLASHCOPY_REORG_INDEX) (QWP4FROI)
- This parameter determines whether the REORG INDEX utility is using FLASHCOPY=YES and the system parameter setting for FCCOPYDDN when these keywords are not included in the UTILITY CONTROL statement.
- (SYSTEM_LEVEL_BACKUPS) (QWP4SLBU)
- This parameter determines whether the RECOVER utility is using system-level backup copies as a recovery base additional to image copies and concurrent copies for object-level recoveries. If you do not want system-level backup copies with the BACKUP SYSTEM utility, specify NO.
- (RESTORE_RECOVER_FROMDUMP) (QWP4RRFD)
- This parameter determines for the restore system and the RECOVER utilities whether the system-level backup that is selected as the recovery base is used from the disk copy of the system-level backup (NO) or from the dump on tape (YES).
- (UTILS_DUMP_CLASS_NAME) (QWP4RSDC)
- This parameter determines the name of the DFSMSHSM dump clas that is used by the Restore System Utility to restore from a system-level backup that is dumped to tape.
- Max Tape Units (RESTORE_TAPEUNITS) (QWP4RSMT)
- This parameter determines the maximum number of tape units or tape drives that the Restore System Utility can use to restore from a system-level backup that is dumped to tape.
- (REORG_IGNORE_FREE_SPACE) (QWP4RIFS)
- This parameter specifies whether the Reorg Tablespace Utility should ignore the PCTFREE and
FREEPAGE values while reloading data rows into a a PBG table space in the following circumstances:
- When a subset of the PBG partitions are reorganized
- When the table in the PBG table space as LOB columns
- Alternate Copy Pool (ALTERNATE_CP) (QWP4BSACP)
- Specifies an optional alternate SMS copy pool for the DB2 BACKUP SYSTEM utility.
- DB Backup STG Group (UTIL_DBBSG) (QWP4UDBSG)
-
Specifies an optional backup SMS storage group to be used by the DB2 BACKUP SYSTEM utility for the DB copy pool.
- LOG Backup STG Group (UTIL_LGBSG) (QWP4ULBSG)
-
Specifies an optional backup SMS storage group to be used by the DB2 BACKUP SYSTEM utility for the LOG copy pool.
- (UTILS_HSM_MSGDS_HLQ) (QWP4UHMD)
- Shows the high level qualifier (HLQ) for data sets (DS) to be allocated by the DB2 BACKUP SYSTEM and RESTORE SYSTEM utilities to receive messages from the Data Facility Hierarchical Storage Manager (DFHSM) and the IBM Data Facility Data Set Services (DFDSS).
- (REORG_PART_SORT_NPSI) (QWP4RPSN)
- This parameter determines the default method of building a non-partitioned secondary index (NPSI) during REORG TABLESPACE PART. This setting is used when the SORTNPSI keyword is not provided in the utility control statement.
- (REORG_LIST_PROCESSING) (QWP4RLPR)
- This parameter determines the default setting for the parallel option of the Db2 REORG TABLESPACE utility if the REORG TABLESPACE control statement does not include the parallel keyword. Depending on the value, the type of processing for partitioned table spaces is selected.
- (REORG_MAPPING_DATABASE) (QWP4RMDB)
- This parameter determines the default database that is used by REORG TABLESPACE SHRLEVEL CHANGE to create the mapping table. When a REORG TABLESPACE SHRLEVEL CHANGE REQUEST is processed, the REORG UTILITY can create its own mapping table and mapping index or it can process user input.
- (REORG_DROP_PBG_PARTS) (QWP4RPBG)
- This parameter determines whether REORG removes trailing empty partitions when operating on an entire partitioned by growth (PBG) table space. An empty trailing partition occurs when REORG moves all data records from a partition into lower numbered partitions.
- (REORG_TS_NOPAD_DEFAULT) - (QWP4RTNP)
- When the REORG TABLESPACE utility is run with DISCARD or UNLOAD EXTERNAL, the NOPAD option
specifies whether variable-length columns in unloaded or discarded records occupy the actual data
length without additional padding. The unloaded records can have varying lengths. The
REORG_TS_NOPAD_DEFAULT subsystem parameter indicates whether the NOPAD option is NO or YES by
default when it is omitted from the utility control statement.
ZPARM NAME: DSN6SPRM.REORG_TS_NOPAD_DEFAULT
- Y
- (Default) Specifies that, by default, the variable-length columns in the unloaded or discarded records occupy the actual data length without additional padding.
- N
- Specifies that, by default, REORG processing pads variable-length columns in the unloaded or discarded records to their maximum length; the unloaded or discarded records to their maximum length; the unloaded or discarded records have equal lengths for each table.
- (REORG_INDEX_NOSYSUT1) (QWP4RINSU)
- Specifies whether the REORG INDEX SHRLEVEL REFERENCE or CHANGE utility should avoid using the SYSUT1 or work data set to hold the unloaded index keys. The utility passes the unloaded keys in memory as input to the index build for this process. Enablement of this option also allows REORG INDEX to utilize parallel sub-tasking to unload and to build the index keys in its internal processing.
- (REORG_IC_LIMIT_DASD) (QWP4RICLD)
- Specifies the maximum number of sequential DASD image copies that the REORG TABLESPACE utility can allocated. Valid settings are integers from 0 to 32767. Default setting of 0 means that the number of DASD image copies that the REORG TABLESPACE utility allocates is based on the number of objects being reorganized without a user imposed limit.
- (REORG_IC_LIMIT_TAPE) (QWP4RICLT)
- Specifies the maximum number of sequential TAPE image copies that the REORG TABLESPACWE utility can allocate. Valid settings are integers from 0 to 32767. Default setting of 0 means that the number of TAPE image copies that the REORG TABLESPACE utility allocates is based on the number of objects being reorganized without a user imposed limit.
- (UTILS_USE_ZSORT) (QWP4UZS)
- Specifies whether Db2 utilities will use the IBM Integrated Accelerator for Z Sort interface when invoking DFSORT for utility processing. However, the use of the integrated sort acceleration depends on other run-time variables and hardware.
- (LOAD_DEL_IMPLICIT_SCALE) (QWP4LDISCALE)
- Specifies how the load utility with the format delimit option processes decimal data that does not contain a explicit decimal point.
- (UTILITY_HISTORY) (QWP4UTHIST)
- Specifies whether information about utility history is collected and stored in the SYSIBM.SYSUTILITIES catalog table.