You can pass or receive structure entry or control data for IXLCACHE requests in buffers. On the request, you can specify a single buffer (by using the BUFFER keyword) or multiple buffers (by using the BUFLIST keyword). To specify buffers for passing or receiving adjunct data, you must use the ADJAREA keyword.

The type of information in the buffers depends on the IXLCACHE request. For instance, on a WRITE_DATA request, the buffer holds data for a data item to be written to a data entry in the cache structure. On an UNLOCK_CASTOUT request, the buffer contains a list of the names of data entries with cast-out locks that you want to free. Both the BUFFER and BUFLIST parameter options enable you to pass or receive up to 65,536 (64K) bytes of structure entry or control data. The ADJAREA parameter allows you to pass or receive up to 64 bytes of data for an adjunct area.