oracle 10G中log_archive_start参数已经被废弃

在Oracle10g中，log_archive_start参数已经被废弃，只要启动数据库的归档模式，Oracle就会启用自动归档，从而避免了10g以前由于用户疏忽所带来的一系列问题。
$ sqlplus "/ as sysdba"

SQL*Plus: Release 10.1.0.3.0 - Production on Wed Apr 13 09:53:25 2005

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Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.3.0 - 64bit Production
With the Partitioning and Data Mining options

SQL> archive log list;
Database log mode              No Archive Mode
Automatic archival             Disabled
Archive destination             USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence      25
Current log sequence            27
SQL> show parameter log_archive_start

NAME                                  TYPE         VALUE
------------------------------------ ----------- ------------------------------
log_archive_start                     boolean      FALSE
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

SQL> startup mount;
ORACLE instance started.

Total System Global Area 3204448256 bytes
Fixed Size                   1304912 bytes
Variable Size              651957936 bytes
Database Buffers          2550136832 bytes
Redo Buffers                 1048576 bytes
Database mounted.
SQL> alter database archivelog;

Database altered.

SQL> alter database open;

Database altered.

SQL> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination             USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence      25
Next log sequence to archive    27
Current log sequence            27
SQL>