EADSCB=value: Specify the support level for extended attribute DSCBs.

EADSCB=OK

This specification indicates that the calling program supports extended attribute DSCBs. An extended address volume may have these DSCBs allocated to it. The returned DSCBs (format-3, format-8) may contain extent descriptors described by 28-bit cylinder addresses or DSCBs (format-9) that contain additional attribute information.

For fully qualified data set names in the Filter Criteria List, a CVAFFILT request fails if the EADSCB=OK, indicator is not set and the DSCB associated with the fully qualified data set name is a format-8 DSCB.

For partially qualified data set names in the Filter Criteria List, a CVAFFILT request fails if the EADSCB=OK, indicator is not set and a DSCB associated with a data set that matches the Filter Criteria List is a format-8 DSCB.

The failing error code for these cases will be reflected as follows:

Data set name status in the FCL (FCLDSNST) is set to a status value of (X'06'). This status code indicates that a data set name is described by a format-8 DSCB and the caller did not specify support for an EAV with the EADSCB=OK keyword.
Set the no resume CVAF status code (CVSTAT) of STAT072
Return code 4.

EADSCB=OK will set the CV4EADOK indicator in the CVPL.

EADSCB=NOTOK

Indicates a calling program does not support extended attribute DSCBs. EADSCB=NOTOK will set the CV4EADOK indicator in the CVPL to off. This is the default.