oracle ADG备库的审计只能开启的OS状态。

在把审计开到DB状态的时候，重启备库的时候状态又重新变回OS状态。

Completed: ALTER DATABASE   MOUNT
Wed Jan 24 01:56:13 2024
ALTER DATABASE OPEN
Data Guard Broker initializing...
Data Guard Broker initialization complete
AUDIT_TRAIL initialization parameter is changed to OS, as DB is NOT compatible for database opened with read-only access>show parameter auditNAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
audit_file_dest                      string      /u01/app/oracle/admin/ormsdg/adump
audit_sys_operations                 boolean     TRUE
audit_syslog_level                   string
audit_trail                          string      OS