Using multi-character CLASS names on the JOB card
Starting at level HJS7790, JES3 supports a CLASS name of greater than one character on the JOB card, up to a maximum of eight characters. In a JESPlex with main processors at mixed JES3 levels, the JES3 global address space must be at HJS7790, or later, at all times for multi-character CLASS names on the JOB card to function properly.
Furthermore, C/I service on a main processor at HJS7790, or later,
must be available within the JESPlex to convert and interpret the
JCL. This C/I service can be available from either C/I DSPs configured
within the JES3 global address space or from a C/I FSS address space,
as long as the C/I service runs on a main processor at HJS7790, or
later. If this C/I service is unavailable, the jobs wait until the
C/I service becomes available.
Note: JES3 supports up to eight characters
for the CLASS name.