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rman怎么恢復spfile

rman怎么恢復spfile,相信很多沒有經(jīng)驗的人對此束手無策,為此本文總結(jié)了問題出現(xiàn)的原因和解決方法,通過這篇文章希望你能解決這個問題。

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實驗準備

OGG (DBID=3068169019)

spfile:/u01/app/oracle/fast_recovery_area/OGG/backupset/2018_03_26/o1_mf_ncsnf_TAG20180326T162759_fckd47yp_.bkp

我們分兩種情況

1.不知道DBID,知道備份路徑

2.知道DBID

(1).模擬刪除spfile

[oracle@ogg-80 dbs]$ cd /u01/app/oracle/product/11.2.0/dbhome_1/dbs

[oracle@ogg-80 dbs]$ mv spfileogg.ora spfileogg.ora.bak

(2).啟動數(shù)據(jù)庫報錯

SYS@ogg> startup force;

ORA-01078: failure in processing system parameters

LRM-00109: could not open parameter file '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/initogg.ora'

針對第一種情況

1.不知道DBID,知道備份路徑

[oracle@ogg-80 ~]$ rman target /

RMAN> startup nomount;  ------啟動到mount

startup failed: ORA-01078: failure in processing system parameters

LRM-00109: could not open parameter file '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/initogg.ora'

starting Oracle instance without parameter file for retrieval of spfile

Oracle instance started

Total System Global Area    1068937216 bytes

Fixed Size                     2260088 bytes

Variable Size                281019272 bytes

Database Buffers             780140544 bytes

Redo Buffers                   5517312 bytes

RMAN> restore spfile to '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileogg.ora' from '/u01/app/oracle/fast_recovery_area/OGG/backupset/2018_03_26/o1_mf_ncsnf_TAG20180326T162759_fckd47yp_.bkp';

Starting restore at 26-MAR-18

using channel ORA_DISK_1

channel ORA_DISK_1: restoring spfile from AUTOBACKUP /u01/app/oracle/fast_recovery_area/OGG/backupset/2018_03_26/o1_mf_ncsnf_TAG20180326T162759_fckd47yp_.bkp

channel ORA_DISK_1: SPFILE restore from AUTOBACKUP complete

Finished restore at 26-MAR-18

針對第二種情況

2.知道DBID

[oracle@ogg-80 ~]$ rman target /

RMAN> set dbid=3068169019

executing command: SET DBID

RMAN> startup nomount;

startup failed: ORA-01078: failure in processing system parameters

LRM-00109: could not open parameter file '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/initogg.ora'

starting Oracle instance without parameter file for retrieval of spfile

Oracle instance started

Total System Global Area    1068937216 bytes

Fixed Size                     2260088 bytes

Variable Size                281019272 bytes

Database Buffers             780140544 bytes

Redo Buffers                   5517312 bytes

方法一:利用自動備份

RMAN> restore  spfile from autobackup;

自動備份這里會報錯,因為我們沒有設置自動備份

方法二:利用手動備份

RMAN> restore spfile to '/u01/app/oracle/product/11.2.0/dbhome_1/dbs/spfileogg.ora' from '/u01/app/oracle/fast_recovery_area/OGG/backupset/2018_03_26/o1_mf_ncsnf_TAG20180326T162759_fckd47yp_.bkp';

看完上述內(nèi)容,你們掌握rman怎么恢復spfile的方法了嗎?如果還想學到更多技能或想了解更多相關內(nèi)容,歡迎關注創(chuàng)新互聯(lián)行業(yè)資訊頻道,感謝各位的閱讀!

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