For AS400 systems that have quite high activity, the use of Journal Cache is needed to speed up the process of writing journals to the journal receiver. By using a journal cache, entries not directly written to disk but to memory first. If several journal entries have been recorded in memory, then they will be transferred to disk.
Change Journal Cache *YES:
Through the command line, type CHGJRN then press F4=Prompt. Type the name of the journal and library to be changed and the Journal Cache parameter to *YES then press Enter.
On WRKJRNA, ensure Journal Cache was *YES.