Can inquiries somehow be done against copies of history files? If I take a backup before running the cleanup utility, can I later view information from the backup file?
It is not possible to access "backed up" history records directly from XCOM. In order for XCOM to access history records, they MUST be in an XCOMHIST data set that is ONLINE to an XCOM for z/OS 12.0 server.
We provide a Sample Easytrieve file. in hlq.CBXGJCL
XCOMJOBH
Provides sample XCOMJOB JCL that extracts the history information and uses Easytrieve to generate a report. When this job completes, the report output can be viewed as SYSOUT in the JES SPOOL.
Please also see TEC510824 How to get a Sequential file from XCOM History file for reporting or other purposes.