ORACLE中使用RAMA删除部分日志

于 2017-01-20 23:22:44 发布
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分类专栏： oracle相关 文章标签： oracle rman
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本文链接：https://blog.youkuaiyun.com/Internetroot/article/details/54634838
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本文介绍了如何使用RMAN（Recovery Manager）在Oracle数据库中删除部分日志，包括查看归档日志文件、手动删除文件以及通过执行特定命令清除已删除的过期日志记录。

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1.登陆RAMA并查看相关日志文件
rman
connect target sys/oracle
list archivelog all


[oracle@oracledb ~]$ rman

Recovery Manager: Release 11.2.0.4.0 - Production on Fri Jan 20 07:05:17 2017

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

RMAN> connect target sys/oracle

connected to target database: ORCL (DBID=1460481228)

RMAN> list archivelog all;

using target database control file instead of recovery catalog
List of Archived Log Copies for database with db_unique_name ORCL
=====================================================================

Key     Thrd Seq     S Low Time           
------- ---- ------- - -------------------
3       1    10      A 2017-01-17 07:43:53
        Name: /u01/oracle/oralog/ARC0000000010_0932700493.0001_570d2ccc.log

4       1    11      A 2017-01-17 07:45:00
        Name: /u01/oracle/oralog/ARC0000000011_0932700493.0001_570d2ccc.log

5       1    12      A 2017-01-17 08:10:51
        Name: /u01/oracle/oralog/ARC0000000012_0932700493.0001_570d2ccc.log

6       1    13      A 2017-01-17 08:16:51
        Name: /u01/oracle/oralog/ARC0000000013_0932700493.0001_570d2ccc.log

7       1    14      A 2017-01-18 01:26:22
        Name: /u01/oracle/oralog/ARC0000000014_0932700493.0001_570d2ccc.log

8       1    15      A 2017-01-18 07:19:54
        Name: /u01/oracle/oralog/ARC0000000015_0932700493.0001_570d2ccc.log

9       1    16      A 2017-01-18 21:48:33
        Name: /u01/oracle/oralog/ARC0000000016_0932700493.0001_570d2ccc.log

10      1    17      A 2017-01-18 21:52:13
        Name: /u01/oracle/oralog/ARC0000000017_0932700493.0001_570d2ccc.log

11      1    18      A 2017-01-18 21:57:10
        Name: /u01/oracle/oralog/ARC0000000018_0932700493.0001_570d2ccc.log

12      1    19      A 2017-01-18 22:01:34
        Name: /u01/oracle/oralog/ARC0000000019_0932700493.0001_570d2ccc.log

13      1    20      A 2017-01-18 22:06:37
        Name: /u01/oracle/oralog/ARC0000000020_0932700493.0001_570d2ccc.log

14      1    21      A 2017-01-19 06:24:46
        Name: /u01/oracle/oralog/ARC0000000021_0932700493.0001_570d2ccc.log

15      1    22      A 2017-01-19 06:30:16
        Name: /u01/oracle/oralog/ARC0000000022_0932700493.0001_570d2ccc.log

16      1    23      A 2017-01-19 06:35:43
        Name: /u01/oracle/oralog/ARC0000000023_0932700493.0001_570d2ccc.log


2.发现有key从3到16的日志文件，现在我们来删除几个，手工到归档路径删除几个归档日志文件

[root@oracledb ~]# su - oracle
[oracle@oracledb ~]$ rm /u01/oracle/oralog/ARC0000000010_0932700493.0001_570d2ccc.log



  
  

   
   RMAN> crosscheck archivelog all;
  
  

  
  


  
  

  
  

   
   released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=60 device type=DISK

   
   validation failed for archived log
archived log file name=/u01/oracle/oralog/ARC0000000010_0932700493.0001_570d2ccc.log RECID=3 STAMP=933493501
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000011_0932700493.0001_570d2ccc.log RECID=4 STAMP=933495053
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000012_0932700493.0001_570d2ccc.log RECID=5 STAMP=933495411
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000013_0932700493.0001_570d2ccc.log RECID=6 STAMP=933557190
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000014_0932700493.0001_570d2ccc.log RECID=7 STAMP=933578400
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000015_0932700493.0001_570d2ccc.log RECID=8 STAMP=933630524
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000016_0932700493.0001_570d2ccc.log RECID=9 STAMP=933630741
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000017_0932700493.0001_570d2ccc.log RECID=10 STAMP=933631032
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000018_0932700493.0001_570d2ccc.log RECID=11 STAMP=933631300
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000019_0932700493.0001_570d2ccc.log RECID=12 STAMP=933631604
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000020_0932700493.0001_570d2ccc.log RECID=13 STAMP=933661492
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000021_0932700493.0001_570d2ccc.log RECID=14 STAMP=933661823
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000022_0932700493.0001_570d2ccc.log RECID=15 STAMP=933662145
validation succeeded for archived log
archived log file name=/u01/oracle/oralog/ARC0000000023_0932700493.0001_570d2ccc.log RECID=16 STAMP=933662456
Crosschecked 14 objects
以上可知，recid=3的文件 validation failed for archived log


3.再次查看是否还有已删除日志文件的记录发现依然还存在列表中

RMAN> list archivelog all;

List of Archived Log Copies for database with db_unique_name ORCL
=====================================================================

Key     Thrd Seq     S Low Time           
------- ---- ------- - -------------------
3       1    10      X 2017-01-17 07:43:53
        Name: /u01/oracle/oralog/ARC0000000010_0932700493.0001_570d2ccc.log

4       1    11      A 2017-01-17 07:45:00
        Name: /u01/oracle/oralog/ARC0000000011_0932700493.0001_570d2ccc.log

5       1    12      A 2017-01-17 08:10:51
        Name: /u01/oracle/oralog/ARC0000000012_0932700493.0001_570d2ccc.log

6       1    13      A 2017-01-17 08:16:51
        Name: /u01/oracle/oralog/ARC0000000013_0932700493.0001_570d2ccc.log

7       1    14      A 2017-01-18 01:26:22
        Name: /u01/oracle/oralog/ARC0000000014_0932700493.0001_570d2ccc.log

8       1    15      A 2017-01-18 07:19:54
        Name: /u01/oracle/oralog/ARC0000000015_0932700493.0001_570d2ccc.log

9       1    16      A 2017-01-18 21:48:33
        Name: /u01/oracle/oralog/ARC0000000016_0932700493.0001_570d2ccc.log

10      1    17      A 2017-01-18 21:52:13
        Name: /u01/oracle/oralog/ARC0000000017_0932700493.0001_570d2ccc.log

11      1    18      A 2017-01-18 21:57:10
        Name: /u01/oracle/oralog/ARC0000000018_0932700493.0001_570d2ccc.log

12      1    19      A 2017-01-18 22:01:34
        Name: /u01/oracle/oralog/ARC0000000019_0932700493.0001_570d2ccc.log

13      1    20      A 2017-01-18 22:06:37
        Name: /u01/oracle/oralog/ARC0000000020_0932700493.0001_570d2ccc.log

14      1    21      A 2017-01-19 06:24:46
        Name: /u01/oracle/oralog/ARC0000000021_0932700493.0001_570d2ccc.log

15      1    22      A 2017-01-19 06:30:16
        Name: /u01/oracle/oralog/ARC0000000022_0932700493.0001_570d2ccc.log

16      1    23      A 2017-01-19 06:35:43
        Name: /u01/oracle/oralog/ARC0000000023_0932700493.0001_570d2ccc.log

4.执行以下语句删除expired状态的日子文件：

RMAN> delete expired archivelog all;

released channel: ORA_DISK_1
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=60 device type=DISK
List of Archived Log Copies for database with db_unique_name ORCL
=====================================================================

Key     Thrd Seq     S Low Time           
------- ---- ------- - -------------------
3       1    10      X 2017-01-17 07:43:53
        Name: /u01/oracle/oralog/ARC0000000010_0932700493.0001_570d2ccc.log


Do you really want to delete the above objects (enter YES or NO)? YES
deleted archived log
archived log file name=/u01/oracle/oralog/ARC0000000010_0932700493.0001_570d2ccc.log RECID=3 STAMP=933493501
Deleted 1 EXPIRED objects
注意执行删除时会进行询问，输入YES执行删除.


5.使用list archivelog all;再次查看时发现手工删除的日子文件已消失在此列表中了；

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