EATTR parameter

Parameter type

Keyword, optional

Purpose

Use the EATTR parameter to indicate whether the data set can support extended attributes (format 8 and 9 DSCBs) or not. To create such data sets, you can include extended address volumes (EAVs) in specific storage groups or specify an EAV on the request or direct the Allocation to an esoteric containing EAV devices.

By definition, a data set with extended attributes can reside in the extended address space (EAS) on an extended address volume (EAV). This parameter can be specified for non-VSAM data sets as well as for VSAM data sets.

The EATTR value has no affect for DISP=OLD processing, even for programs that might open a data set for OUTPUT, INOUT, or OUTIN processing. The value on the EATTR parameter is used for requests when the data set is newly created.