Description: TSO/E provides a number of REXX enhancements to EXECIO, and to the LISTDSI, and STORAGE functions, and provides a new MVSVAR variable to indicate the level of the operating system. These enhancements are intended to make it easier to retrieve information about data sets in the extended addressing space (EAS) of extended address volumes (EAVs), as well as multi-volume, PDSE, and concatenated data sets; to support I/O to undefined and spanned record format data sets in order to improve the usability and capability of EXECIO; and to eliminate unnecessary calls from LISTDSI to an external security manager, such as RACF®.
When change was introduced: z/OS® V2R1