Home Database Mysql Tutorial RMAN还原控制文件

RMAN还原控制文件

Jun 07, 2016 pm 04:07 PM
oracle database

如果丢失或损坏所有的控制文件就需要从备份中还原控制文件。restore controlfile命令用来还原控制文件。在还原控制文件后需要对数

如果丢失或损坏所有的控制文件就需要从备份中还原控制文件。restore controlfile命令用来还原控制文件。在还原控制文件后需要对数据亩执行完全介质恢复并以resetlog选项来打开数据库。RMAN可以将控制文件还原到它的默认存储位置,也可以使用restore controlfile ... to destination来指定位置。

从已经知的控制文件备份中还原控制文件
SQL> show parameter control_files

NAME                                TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_files                        string      /u01/app/Oracle/oradata/test/c
                                                ontrol01.ctl, /u01/app/oracle/
                                                oradata/test/control02.ctl, /u
                                                01/app/oracle/oradata/test/con
                                                trol03.ctl


显示当前可用的备份
RMAN> list backup;


List of Backup Sets
===================

BS Key  Size      Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ ---------------
77      693.50K    DISK        00:00:02    28-JAN-15
        BP Key: 75  Status: AVAILABLE  Compressed: YES  Tag: TAG20150128T131713
        Piece Name: /u02/test_df870182233_s95_s1

  List of Archived Logs in backup set 77
  Thrd Seq    Low SCN    Low Time  Next SCN  Next Time
  ---- ------- ---------- --------- ---------- ---------
  1    13      2928236    28-JAN-15 2928830    28-JAN-15

BS Key  Type LV Size      Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
78      Full    166.91M    DISK        00:01:19    28-JAN-15
        BP Key: 76  Status: AVAILABLE  Compressed: YES  Tag: TAG20150128T131716
        Piece Name: /u02/test_df870182236_s96_s1
  List of Datafiles in backup set 78
  File LV Type Ckp SCN    Ckp Time  Name
  ---- -- ---- ---------- --------- ----
  1      Full 2928835    28-JAN-15 /u01/app/oracle/oradata/test/system01.dbf
  2      Full 2928835    28-JAN-15 /u01/app/oracle/oradata/test/undotbs01.dbf
  3      Full 2928835    28-JAN-15 /u01/app/oracle/oradata/test/sysaux01.dbf
  4      Full 2928835    28-JAN-15 /u01/app/oracle/oradata/test/users01.dbf
  5      Full 2928835    28-JAN-15 /u01/app/oracle/oradata/test/example01.dbf
  6      Full 2928835    28-JAN-15 /u01/app/oracle/oradata/test/test01.dbf

BS Key  Size      Device Type Elapsed Time Completion Time
------- ---------- ----------- ------------ ---------------
79      7.50K      DISK        00:00:01    28-JAN-15
        BP Key: 77  Status: AVAILABLE  Compressed: YES  Tag: TAG20150128T131841
        Piece Name: /u02/test_df870182321_s97_s1

  List of Archived Logs in backup set 79
  Thrd Seq    Low SCN    Low Time  Next SCN  Next Time
  ---- ------- ---------- --------- ---------- ---------
  1    14      2928830    28-JAN-15 2928868    28-JAN-15

BS Key  Type LV Size      Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
80      Full    9.42M      DISK        00:00:02    28-JAN-15
        BP Key: 78  Status: AVAILABLE  Compressed: NO  Tag: TAG20150128T131843
        Piece Name: /u01/app/oracle/10.2.0/db/dbs/c-2155613261-20150128-0d
  Control File Included: Ckp SCN: 2928874      Ckp time: 28-JAN-15
  SPFILE Included: Modification time: 28-JAN-15

 

 

从上面的信息可以看到备份集80是控制文件与spfile文件的备份

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