Format of Returned Cast-Out Class Data

For each specified data item that belongs to the cast-out class, the system returns a 32-byte block of information to your local cache buffer. Each block occupies contiguous buffer storage starting at offset 0 and consists of three fields containing:

The name of a data item belonging to the cast-out class
Any directory entry user-data associated with the data item
The number of cache structure elements allocated to the data item

Macro IXLYCANB maps the 32-byte block of information. For a description of IXLYCANB, see z/OS® MVS™ Data Areas in the z/OS Internet library.

In the answer area field CAADIRCOUNT, the system also provides, a count of the number of blocks that are returned to the buffer.