Micro Focus Enterprise Developer 2.3 for Visual Studio 2015 > Programming > Mainframe Programming > JCL Support > Advanced Data Set Information > Data Set Organizations

Data Set Organizations

The data set organizations supported by MSS are shown in the following table.

Abbreviation	Organization	Comment
GDG	Generation data group
IS	Indexed sequential
ISU	Indexed sequential, unmoveable
PDSM	Partitioned data set member	Micro Focus organization
PO	Partitioned
POU	Partitioned, unmoveable
PS	Physical sequential
PSU	Physical sequential, unmoveable
VSAM	Virtual storage access method

Note: Although the direct access (DA) organization is not supported explicitly, you can emulate it by using the VSAM organization and relative record (RR) record format.