Hi Gilbert,
the latest documentation should explain what you have observed
(from "z/OS V1R10.0 DFSMSdfp Advanced Services"):
| On return from SEARCH requests, the first 103 bytes of the first 140 byte
| return area will contain:
* | The 96 byte data portion of the format-1, format-4, or format-8 DSCB
* | Followed by 5 bytes that contain the absolute track address (CCHHR) of
| this DSCB. For VSAM object names that appear in the catalog, but not
| in the VTOC or VIO data sets, these 5 bytes contain zeros.
* | Followed by a 2 byte count of the total number of DSCBs associated
| with the data set DSCB, even if there are insufficient return areas
| into which to read them all. This count includes all DSCB types that
| could describe a data set. Set to zero for DSCBs constructed from
| catalog when DSCBs are not present in the VTOC.
Regards, Klaus.
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