The diagnostic file (EQQDUMP)

When IBM Z Workload Scheduler internal validity checking discovers error conditions within the network communication function, debugging information is written to the IBM Z Workload Scheduler diagnostic file (defined by ddname EQQDUMP). For serious error conditions, IBM Z Workload Scheduler abends with user code 3999 as well.

The diagnostic information consists of message EQQ0000T, which gives the name of the module in error and the reason for the error, in two 8-byte character strings. IBM Z Workload Scheduler also writes a formatted version of the trace table to the diagnostic file. In most situations, IBM Z Workload Scheduler will also “snapˮ the data that it considers to be in error.