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Summary of changes
This topic summarizes product changes and enhancements by version number and release date.
Version 3.1.00, June 2019
This release adds the following new features:
- Subzero can now generate System Management Facility (SMF) records.
- This release relocates the Subzero configuration files to a sequential data set of shared DASD.
Version 3.0.00, June 2017
This SPE adds the following enhancements:
- Subzero can now redirect requests, message handle, and message property calls to IBM MQ from IBM CICS and route them to a IBM MQS subsystem running on another LPAR.
- Subzero can now redirect message property calls to MQ from IBM IMS.
Version 3.0.00, December 2016
This release adds the following new features:
- You can now configure the IBM MQ product to communicate with the IBM IMS, DB2, and CICS subsystems on remote LPARs. This feature is available to users with a license for the BMC Subsystem Optimizer for MQ product.
You can now configure Subzero to connect to alternative target LPARs (up to two), if the primary target LPAR is unavailable.
You configure alternative targets in the DB2 Product Configuration (LGC) component, and enable or disable this feature by using the BRD, ALTS command.
- The number of threads is no longer limited to 8,192. Subzero can now run an unlimited number of threads, which are dynamically defined according to system requirements.
- Subzero now supports an enhanced infrastructure that allows additional monitoring by the MainView products. Specific enhancements are delivered by the individual MainView products.
- This release of BMC Subsystem Optimizer for DB2 supports IBM DB2 Version 12.
Version 2.0.00, September 2015
This release adds the following new features:
- You can now configure an IBM MQ queue-sharing group (QSG) to cache shared object definitions on an IBM DB2 subsystem that is running on a remote LPAR.
- All STOP commands now support the FORCE option. For example / dbcssid BRD,STOP,FORCE forcibly stops all address spaces on the local LPAR.
- The BRD,DISPLAY,MAP command now also displays any redirectional conflicts such as redirection to unavailable targets, or to unsupported DB2 or IMS subsystems.
Following the 2.0.00 release in September 2015, the following significant features were made available via PTFs accompanying small program enhancements (SPE):
- You can run DB2 and IMS batch jobs on remote LPARs. Specifically, for batch jobs that use the call attachment facility (CAF) to execute DB2 SQL statements, you can now redirect those jobs to a remote DB2 subsystem. You can also specify that the DB2 job steps run on the same remote LPAR, which reduces latency for very large data requests.
- Subzero now lets you specify a naming pattern for Subzero subsystem servers based on the job name of the client application that is using the Subzero connection.
Version 1.0.00, May 2014
Following the original release in May 2014, the following significant features were made available via PTFs accompanying small program enhancements (SPE):
- Subzero now provides an installation verification program (IVP) that you can use to ensure that the product is installed and set up correctly in your environment.
- Subzero now supports the IBM IMS Open Thread Environment (OTE). IBM issued APARs to enable OTE for IMS Version 12 (APAR PI29194) and 13 (APAR PI29195).
- Enhanced Subzero messages now provide information that you can use in a BRD,KILL command to terminate the task. These messages identify the waiting or suspended thread and its associated Subzero task number.