Authorized applications, such as servers, can invoke the R_cacheserv callable service (IRRSCH00) to request the storage or retrieval of security-relevant information from a cache.

To authorize applications that do not run in system key or supervisor state, you must define RACF® user IDs for them (see Defining applications as RACF users) and authorize their user IDs or groups for at least READ access to the resource called IRR.RCACHESERV.cachename in the FACILITY class.

With READ authority, the server is authorized to use only the FETCH function of IRRSCH00. With UPDATE authority or higher, the server can use all functions of the service.

Authorization changes that you make for a server currently invoking IRRSCH00 will not take effect until the job step task invoking the service ends and a new one is started.