Command changes in IMS 15

In IMS 15, a number of commands have been enhanced to support new functionality and some commands have been removed.

Most of the command enhancements are to type-2 commands in support of the IMS strategy of enhancing the capability of single point of control (SPOC) applications that issue type-2 commands through the Operations Manager (OM) API or the REXX SPOC API.

If a command appears in more than one of the following subsections, the command was enhanced to support multiple new or changed functions in IMS 15.

Subsections:
Start of change

/DISPLAY TMEMBER command enhancements

The /DISPLAY TMEMBER command is enhanced with the following status terms, which can be displayed when a transaction pipe (tpipe) name is specified on the TPIPE keyword:
MCP
Indicates that in a shared-queues environment, the transaction pipe has output messages on the global queue.

Start of changeThe status term SYW was removed. End of change

For more information, see /DISPLAY TMEMBER command.

End of change

DBRC migration and coexistence

DBRC migration and coexistence changes the default value of the MINVERS parameter to 13.1 in the following commands:

Function level activation control enhancement

The following commands are added for the function level activation control enhancement:
  • Use the QUERY IMSFUNC command command to see all of the IMS functions that are defined in the IMS function table.
  • Use the UPDATE IMSFUNC command command to dynamically enable or disable IMS functions that are not enabled by default.

IMPORT DEFN SOURCE(CATALOG) command enhancements

The IMPORT DEFN SOURCE(CATALOG) command is enhanced to support the NAME() keyword, in order to allow the user to specify one or more DBDs or PSBs or both to be imported by name, instead of importing all of the DBD and PSB ACBs from the staging directory.

The IMPORT DEFN SOURCE(CATALOG) command is also enhanced to add a new NOCHECK to OPTION(). The IMPORT DEFN command is used to import changed DBD members with no associated PSB members that are rebuilt by using the DFS3UACB utility with BLDPSB=NO or DDL ALTER. The enhanced IMPORT DEFN command to import database changes for BUILD DBD improves performance for a catalog directory with a large number of members.

The new function is enabled when the new OPTION(NOCHECK) is specified in the IMPORT DEFN SOURCE(CATALOG) command.

IMS Connect command enhancements

The following type-2 commands are enhanced for IMS Connect in IMS 15:
  • The CREATE IMSCON TYPE(PORT) command returns a new completion code when the number of ports that are defined to IMS Connect reaches 200, the new maximum number for defined ports.
  • Start of changeThe QUERY IMSCON TYPE(CONFIG) command is enhanced to add the following filters:
    • The ODBMAPPL filter to the SHOW keyword. You can use the ODBMAPPL filter to display the value that is specified on the APPL= parameter of the ODACCESS statement of the HWSCFGxx configuration member.
    • The RACFGENRC filter to the SHOW keyword. You can use the RACFGENRC filter to query whether the RACF® generic return code is returned if RACF is used to verify sign-ons from IMS Connect clients and the user ID or password provided is invalid.
    End of change
  • Start of changeThe UPDATE IMSCON TYPE(CONFIG) command is enhanced to add the following attributes:
    • The ODBMAPPL attribute to the SET keyword. You can use the ODBMAPPL attribute to set the application name that is used by IMS Connect on the RACROUTE REQUEST=VERIFY RACF call to verify DRDA client connections to IMS DB.
    • The RACFGENRC attribute to the SET keyword. You can use the RACFGENRC attribute to define whether the RACF generic return code is returned if RACF is used to verify sign-ons from IMS Connect clients and the user ID or password provided is invalid.
    End of change

INIT OLC command enhancement

The INIT OLC TYPE(ACBMBR) command has new option called BLDPSBNO with APAR PH16612.

The BLDPSBNO option enables you to change DBDs that do not have structural updates.

OTMA command enhancements

Start of changeThe OTMA ACEE flood control enhancement introduces changes to the following commands: End of change
Start of changeThe following output fields are changed in the /DISPLAY OTMA command:
  • The ACEEAGE output field is changed to ACEEAG.
  • The TOA output field is changed to TA. Its description is updated.
  • The maximum displayed count value of the TPCNT output field is changed from 99999 to 9999999.
  • The response ETs in examples are updated with the parameters TPCNT, ACEEAG, MAXTP, TA, ACEECT, BETP, and WGF displayed.
  • Two examples are deleted.
  • One example for displaying the TPIPE limits is added.
End of change

Program Creation user exit routine (PGMCREAT) enhancement

Program Creation user exit routine (PGMCREAT) enhances the following commands:

RSR commands removed in IMS 15

Commands, command keywords, and command output that are specific to the discontinued Remote Site Recovery function have been removed or are otherwise no longer effective.

Support for RSR keywords on commands that are not specific to RSR has been removed. Some RSR-specific keywords return a message or code indicating the RSR is no longer supported, while other keywords are ignored.

The following commands that are specific to RSR have been removed from IMS 15:
  • CHANGE.PRILOG TSLDS
  • CHANGE.SECLOG TSLDS
  • CHANGE.SG
  • DELETE.GSG
  • DELETE.SG
  • /DISPLAY TRACKING STATUS
  • GENJCL.RECEIVE
  • INIT.SG
  • INIT.GSG
  • LIST.GSG
  • RESET.GSG
  • /START ISOLOG
  • /START SERVGRP
  • /START XRCTRACK
  • /STOP SERVGRP
  • /STOP XRCTRACK
Start of change

UPDATE IMS command enhancement

A new keyword, ZHYPERWRITE, has been added to the UPDATE IMS SET(LCLPARM) command. For more information, see UPDATE IMS command.

End of change
Start of change

UPDATE TRAN command enhancement

The UPDATE TRAN command is enhanced so that you can run the command with the PLCTTIME attribute specified whether or not dynamic resource definition (DRD) is enabled. Previously, if you ran the command with the PLCTTIME attribute specified and DRD was disabled, the command was not processed, and return code X'00000010' and reason code X'00004300' were returned.

End of change

DBRC managed ACB staging directory command support

You can specify two new mutually exclusive optional keywords, STAGING or ACTIVE, in the following DBRC commands to get database definition information from the staging directory or the active directory:
  • CHANGE.DBDS
  • CHANGE.PART
  • INIT.DB
  • INIT.DBDS
  • INIT.PART
  • NOTIFY.REORG
Start of change

QUERY command enhancement

The description of the IMSID parameter in the following QUERY command are updated:
  • QUERY DB
  • QUERY PGM
  • QUERY RTC
  • QUERY TRAN
  • QUERY DBDESC
  • QUERY PGMDESC
  • QUERY RTCDESC
  • QUERY TRANDESC

The support for the IMS Fast Monitor (FASTMON) user exit is added to the QUERY USEREXIT command.

End of change
Start of change

REFRESH command enhancement

The support for the IMS Fast Monitor (FASTMON) user exit is added to the REFRESH USEREXIT command.

End of change

Database and area command changes for the Restricted Update mode

The following commands were changed to enable the Restricted Update mode for databases, partitions, and Fast Path areas:
  • UPDATE DB
  • UPDATE AREA
  • QUERY DB
  • QUERY AREA

CREATE IMCON command enhancement

The IMS compliance control block support introduces the following updates:
  • A new return code X'0C000014' with the reason code X’00005000’ in CREATE IMSCON TYPE(DATASTORE) command
  • A new completion code 53 in CREATE IMSCON TYPE(IMSPLEX) command

IMS ALTPCB enhancement for IMS Connect

The SENDALTP keyword is introduced in the following commands:
  • CREATE OTMADESC command
  • UPDATE OTMADESC command
  • VIEWHWS command
  • VIEWDS command
  • CREATE IMSCON TYPE(DATASTORE) command
  • UPDATE IMSCON TYPE(CONFIG) command
  • UPDATE IMSCON TYPE(DATASTORE) command
  • QUERY IMSCON TYPE(CONFIG) command
  • QUERY IMSCON TYPE(DATASTORE) command