...here is the description of spools that were generated...
Those are the spooled files, but what job description is associated with those jobs?
The first one listed appears to be from job 079299/DMYPGMR/QZSHSH. So, run this command:
DSPJOB JOB( 079299/DMYPGMR/QZSHSH ) OPTION(*DFNA)
The job description should at the top of the display.
Most other jobs listed are QP0ZSPWP jobs with a single CSBLND job. I would look at at least a few different ones to see if they all use the same job description or a small group of job descriptions. I wouldn't be surprised if most them used QDFTJOBD.
Start by using the CHGJOBD command to set LOG(4 0 *NOLIST) for the most common job description. Post the results back here. If the number of spooled joblogs is reduced, then you are close to the resolution.