Execute Direct Access Program: Difference between revisions

Revision as of 23:10, 26 December 2015

Revision as of 05:08, 3 October 2016

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==OPENing an XDAP dataset==

XDAP must reference an OPENed DCB and a full direct access identifier. The DCB may be OPENed for input, for output or for input and output ("INOUT"), but all outputs must be update writes of existing blocks as XDAP does not support format writes. BSAM and BPAM are available for executing format writes (writes which add new blocks to the dataset, i.e. the ''initial'' or an ''additional'' block, and, particularly, the ''final'' block).

==IOBSPSVC flag for XDAP and SAM and PAM coexistence==