Execution of XIM
TheBMC Database Administration for Db2 andBMC AMI Database Administration for Db2 use the XIM technology to manage units of work (UOWs).
XIM executes as a separate OS/390 or z/OS started task. You must start XIM on each image where Change Managerwill use XIM as a distribution point for UOWs. XIM uses the services of the IBM Cross-System Coupling Facility (XCF) to locate and connect to other instances of itself within the OS/390 or z/OS parallel sysplex.
If your site uses the Resource Access Control Facility (RACF) or CA-Top Secret, you can authorize the procedures for the XIM subsystem as started tasks in the started procedures table. If your site uses CA-ACF2, you can authorize the procedures for the XIM subsystem as started tasks under the started task control. The following table describes authorization for XIM:
Product | Task |
---|---|
RACF or CA-Top Secret | Authorize the procedures for the following subsystems as started tasks in the started procedures table:
If you are running RACF version 2.1 or later, you can use the STARTED class to add or modify RACF security definitions for started procedures without having to perform an IPL of the system. The STARTED class allows you to modify the security definitions dynamically through the RDEFINE, RALTER, and RLIST commands. For more information about using the STARTED class, see the appropriate RACF publication. |
CA-ACF2 | Authorize the procedures for the following subsystems as started tasks under the started task control:
See the appropriate CA-ACF2 publication for more information. |
Your systems programmer can issue XIM console commands from an OS/390 or z/OS console to start, stop, and modify XIM. This section describes the commands to use and the procedures to follow to perform the following tasks:
Determine the status of XIM
Start XIM
Inactivate XIM initiators
Shut down XIM
Activate XIM initiators
Modify MVS image variables
Troubleshoot the execution of XIM
For more information about XIM, see Cross System Image Manager .
This section contains the following topics:
- Determining the status of XIM
- Starting XIM
- Inactivating XIM initiators
- Shutting down XIM
- Activating XIM initiators
- Modifying MVS image variables
- Troubleshooting the execution of XIM
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