How sepmdd daemon determine to take backup of pmd audit log (pmd_audit) file.
sepmdd daemon obtains following tokens from seos.ini file to take backup of pmd_audit file because those tokens are not existed in pmd.ini file as initial state.
It means the backup of pmd_audit file is taken as same way as the backup of seos.audit file.
seos.ini file
[logmgr]
audit_size
BackUp_Date
If you want to change the value of those tokens only effective for the backup of pmd_audit file, then you can simply add those tokens in pmd.ini file.
After adding those tokens, you need to restart sepmdd daemon.
pmd.ini file
[logmgr]
audit_size
BackUp_Date
Then, sepmdd daemon obtains those tokens from pmd.ini file and takes backup of pmd_audit file in accordace with the specified values in those tokens.