The TRTRANSZ system initialization parameter specifies the size, in kilobytes, of the transaction dump trace table.
TRTRANSZ={1024 | number-of-kilobytes} 
When a transaction dump is taken, CICS® obtains MVS™ storage in 64-bit (above-the-bar) storage for the transaction dump trace table.
- 1024
- 1024 KB is the default size of the transaction dump trace table.
- number-of-kilobytes
- The number of kilobytes of storage to be allocated for the transaction dump trace table, in the range 16 -1048576 KB (1 GB).
Trace entries are of variable lengths. The average length of a trace entry is approximately 100 bytes. 1 KB is equal to 1024 bytes.
When you set this parameter, check your current setting for the z/OS® parameter MEMLIMIT. MEMLIMIT limits the amount of 64-bit storage that the CICS address space can use. Your setting for TRTRANSZ must remain within MEMLIMIT, and you must also allow for other facilities in the CICS region that use 64-bit storage. See Estimating, checking, and setting MEMLIMIT. For information about MEMLIMIT in z/OS, see
Limiting the use of memory objects in the z/OS
MVS Programming: Extended Addressability Guide.
