Extended attributes specification - Key = '8028'

DALEATT indicates whether the data set can support extended attributes (format 8 and 9 DSCBs). By definition, a data set with extended attributes can reside in EAS (extended address space) on an EAV (extended address volume). These attributes can be specified for non-VSAM data sets as well as for VSAM data sets.

When you code DALEATT, # must be one, LEN must be one, and PARM contains one of the following values:

X'01': No Extended Attributes allowed.
X'02': Extended attributes are optional, and will be created if the data set is created on an EAV. In addition, the data set can be created in the EAS of the EAV.

Example: To specify extended attributes of OPT, code:

KEY    #     LEN   PARM
8028   0001  0001  02