1.查看当前归档日志目录

SQL> show parameter recovery

NAME TYPE VALUE

---

db_recovery_file_dest string /u01/app/oracle/fast_recovery_
area
db_recovery_file_dest_size big integer 4182M
recovery_parallelism integer 0

2.更改归档日志目录

SQL> alter system set db_recovery_file_dest='/u01/app/oracle/archivelog' scope=spfile;

System altered.

3.更改归档日志目录大小

SQL> alter system set db_recovery_file_dest_size=4096m scope=spfile;

System altered.

4.重启数据库并查看归档日志目录及大小

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area 759943168 bytes
Fixed Size 2257112 bytes
Variable Size 499126056 bytes
Database Buffers 255852544 bytes
Redo Buffers 2707456 bytes
Database mounted.
Database opened.
SQL> show parameter recovery

NAME TYPE VALUE

---

db_recovery_file_dest string /u01/app/oracle/archivelog
db_recovery_file_dest_size big integer 4G
recovery_parallelism integer 0