pls see the command results below, very confused why
log_archive_start can't be set as 'true'?
I've tried some command such archive log start etc..
alter system set ....

SQL>show parameter log_archive_start
NAME TYPE VALUE
log_archive_start boolean FALSE

SQL>archive log list
Database log mode Archive Mode
Automatic archival Enabled
Archive destination d:\oracle\arc\arc2
Oldest online log sequence 38
Next log sequence to archive 40
Current log sequence 40