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The Active User Report List file can be dynamically sorted by utility IOADBSR.
The Index component of the IOA Access Method file functions as a balanced tree index. The Control‑D monitor can optionally sort the Data component of the Active User Report List file so that the physical order of the records is the same as the logical order of the Index component. This automatically provides increased I/O performance benefits for users of the Control‑D Online Viewing facility and utilities such as CTDDELRP.
Dynamic sorting of the Active User Report list file does not inhibit the simultaneous execution of other Control‑D activities, such as decollation, printing, backup and restore mission processing, or access to online user facilities.
Although dynamic sorting allows other processes to be performed concurrently on the same file components, INCONTROL for z/OS supplies a set of Sort Control parameters that can be specified to execute dynamic sorting at a time of day and at intervals when access to Control‑D file components is at a minimum. Dynamic sorting is disabled by default. For a description of the Sort Control parameters and Dynamic sorting, see the IOADBSR utility and the ENABLE parameter in the INCONTROL for z/OS Utilities Guide.
Dynamic sorting of the Active User Report list file is enabled and controlled by the parameters specified in member DBSRTPRM in the Control‑D PARM library (allocated to DD statement DASORTPR in the Control‑D monitor’s procedure JCL).
IOA Access Method files can also be sorted by executing utility IOADBSR as a batch job. For a description of the IOADBSR utility, see the INCONTROL for z/OS Utilities Guide.
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