现象：
正在进行DML操作时，操作一直无法完成。退出SQLPLUS时一直无响应--卡着不动无法正常退出。
登陆数据库所在主机，使用SQLPLUS登陆DBA用户时，提示归档出错。
[oracle@oel-01 ~]$ sqlplus bys/bys
SQL*Plus: Release 11.2.0.1.0 Production on Sun Jul 21 17:55:09 2013
Copyright (c) 1982, 2009, Oracle. All rights reserved.
ERROR:
ORA-00257: archiver error. Connect internal only, until freed.
一、查看 日志提示一个REDO日志不能归档。
[oracle@oel-01 ~]$ tail alert_bys001.log
ORA-19502: write error on file "", block number (block size=)
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/bys001/redo03.log'
Sun Jul 21 18:01:18 2013
ARCH: Archival stopped, error occurred. Will continue retrying
ORACLE Instance bys001 - Archival Error
ORA-16014: log 3 sequence# 219 not archived, no available destinations
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/bys001/redo03.log'
Errors in file /u01/app/oracle/diag/rdbms/bys001/bys001/trace/bys001_arc1_6050.trc:
ORA-16014: log 3 sequence# 219 not archived, no available destinations
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/bys001/redo03.log'
二、查看硬盘使用情况，发现ORACLE_HOME 即归档文件所在目录使用已经100%
[oracle@oel-01 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 19G 18G 3.8M 100% /
/dev/sda1 99M 21M 74M 22% /boot
tmpfs 3.0G 529M 2.5G 18% /dev/shm
/dev/sda5 4.6G 2.6G 1.9G 58% /backup
三、这里我使用RMAN来删除归档日志
[oracle@oel-01 ~]$ rman target /
RMAN>
crosscheck archivelog all;
RMAN>
delete expired archivelog all;
----注意要用RMAN删除，--遇到过通过手动从OS上rm时ORALCE不能及时检测到空闲空间的情况
删除今天之前的归档日志
RMAN> delete archivelog until time 'sysdate-1' ;
也可以用
RMAN> delete archivelog all; 删除所有归档
四、查看磁盘空间，已经释放出来了一部分。
[oracle@oel-01 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 19G 18G 588M 97% /
/dev/sda1 99M 21M 74M 22% /boot
tmpfs 3.0G 529M 2.5G 18% /dev/shm
/dev/sda5 4.6G 1.8G 2.6G 42% /backu
五、此时使用DBA用户登陆SQLPLUS依然出错，使用SYSDBA用户登陆，切换当前日志文件。
[oracle@oel-01 ~]$ sqlplus bys/bys
SQL*Plus: Release 11.2.0.1.0 Production on Sun Jul 21 18:03:48 2013
Copyright (c) 1982, 2009, Oracle. All rights reserved.
ERROR:
ORA-00257: archiver error. Connect internal only, until freed
使用SYSDBA登陆
SYS@ bys001>alter system switch logfile; ----可能会需要较长时间。
System altered.
SYS@ bys001>select group#,status,archived from v$log;
GROUP# STATUS ARC
---------- ---------------- ---
1 CURRENT NO
2 INACTIVE YES
3 ACTIVE NO
日志可能如下：
[oracle@bys001 ~]$ cat alert_bys1.log
Sat Oct 05 12:44:41 2013
Suspending MMON action 'metrics monitoring' for 82800 seconds
Sat Oct 05 12:45:10 2013
Archiver process freed from errors. No longer stopped
Sat Oct 05 12:45:14 2013
Archived Log entry 106 added for thread 1 sequence 111 ID 0xebe3b9d9 dest 1:
krse_arc_driver_core: Successful archiving of previously failed ORL
Sat Oct 05 12:45:14 2013
Thread 1 advanced to log sequence 114 (LGWR switch)
Current log# 3 seq# 114 mem# 0: /u01/oradata/bys1/redo03.log
Sat Oct 05 12:45:14 2013
AUD: Audit Commit Delay exceeded, written a copy to OS Audit Trail
Sat Oct 05 12:45:21 2013
Archived Log entry 107 added for thread 1 sequence 113 ID 0xebe3b9d9 dest 1:
Archived Log entry 108 added for thread 1 sequence 112 ID 0xebe3b9d9 dest 1:
六、现在数据库恢复正常，可以登陆并操作
SYS@ bys001>conn bys/bys
Connected.
BYS@ bys001>exit
[oracle@oel-01 ~]$ sqlplus bys/bys
BYS@ bys001>truncate table test1;
Table truncated.
最后要对归档日志进行备份和删除。
使用备份归档脚本如下：
[oracle@oel-01 ~]$ cat archback.sh
#!/bin/sh
#su - oracle
source /home/oracle/.bash_profile
##########
/u01/app/oracle/product/11.2.0/dbhome_1/bin/rman log /home/oracle/rman-arch`date +%Y%m%d-%H%M`.log <<EOF
connect target /;
run{
backup archivelog all delete input
format '/backup/archlog/arch_%d_%T_%s';
}
exit
