spfile 和pfile 在数据库open和shutdown 的两种情况下的恢复成功


本实验室做当数据库在 open 和shutdown 的两种情况下spfile 和pfile 丢失的情况下的恢复。

Oracle@aoracle dbs]$ rman target rman_user/rman_user;

Recovery Manager: Release 10.2.0.1.0 - Production on Thu Dec 8 19:21:38 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: EZHOU (DBID=4046377924, not open)

RMAN> restore spfile;

Starting restore at 08-DEC-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=149 devtype=DISK

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 12/08/2011 19:21:56
RMAN-06564: must use the TO clause when the instance is started with SPFILE

RMAN> restore spfile to '/u02/rman/spfile.ora' from autobackup;

Starting restore at 08-DEC-11
using channel ORA_DISK_1

channel ORA_DISK_1: looking for autobackup on day: 20111208
channel ORA_DISK_1: autobackup found: /u02/rman/ctl_c-4046377924-20111208-00
channel ORA_DISK_1: SPFILE restore from autobackup complete
Finished restore at 08-DEC-11

RMAN>

把spfile 拷贝到$ORACLE_HOME/dbs下就可以了。

===================

下面进行：数据库处于关闭状态，丢失spfile，pfile

[oracle@aoracle dbs]$ mv spfileezhou.ora spfileezhou.ora_b
[oracle@aoracle dbs]$ mv initezhou.ora initezhou.ora_b

[oracle@aoracle dbs]$ ls -l *ezhou*.ora*
-rw-r--r-- 1 oracle oinstall  986 Dec  6 19:27 initezhou.ora_b
-rw-r----- 1 oracle oinstall 2560 Dec  8 19:38 spfileezhou.ora_b

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

[oracle@aoracle admin]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Thu Dec 8 20:01:33 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup;
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/u01/pp/oracle/product/10.2/db_1/dbs/initezhou.ora'
SQL> startup nomount;
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/u01/pp/oracle/product/10.2/db_1/dbs/initezhou.ora'
SQL> startup force nomount;
ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/u01/pp/oracle/product/10.2/db_1/dbs/initezhou.ora'
SQL> !
[oracle@aoracle admin]$ rman target /

Recovery Manager: Release 10.2.0.1.0 - Production on Thu Dec 8 20:04:10 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database (not started)

RMAN> restore spfile from '/u02/rman/ctl_c-4046377924-20111208-00'
2> ;

Starting restore at 08-DEC-11
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 12/08/2011 20:05:29
RMAN-12010: automatic channel allocation initialization failed
RMAN-06403: could not obtain a fully authorized session
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux Error: 2: No such file or directory

RMAN> startup force nomount;

startup failed: ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/u01/pp/oracle/product/10.2/db_1/dbs/initezhou.ora'

starting Oracle instance without parameter file for retrival of spfile
Oracle instance started

Total System Global Area     159383552 bytes

Fixed Size                     1218268 bytes
Variable Size                 54528292 bytes
Database Buffers             100663296 bytes
Redo Buffers                   2973696 bytes

RMAN> restore spfile from autobackup;

Starting restore at 08-DEC-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=36 devtype=DISK

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 12/08/2011 20:06:44
RMAN-06495: must explicitly specify DBID with SET DBID command

RMAN> set dbid 4046377924

executing command: SET DBID

RMAN> restore spfile from autobackup;

Starting restore at 08-DEC-11
using channel ORA_DISK_1

channel ORA_DISK_1: looking for autobackup on day: 20111208
channel ORA_DISK_1: looking for autobackup on day: 20111207
channel ORA_DISK_1: looking for autobackup on day: 20111206
channel ORA_DISK_1: looking for autobackup on day: 20111205
channel ORA_DISK_1: looking for autobackup on day: 20111204
channel ORA_DISK_1: looking for autobackup on day: 20111203
channel ORA_DISK_1: looking for autobackup on day: 20111202
channel ORA_DISK_1: no autobackup in 7 days found
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 12/08/2011 20:07:18
RMAN-06172: no autobackup found or specified handle is not a valid copy or piece

RMAN> restore spfile from '/u02/rman/ctl_c-4046377924-20111208-00';

Starting restore at 08-DEC-11
using channel ORA_DISK_1

channel ORA_DISK_1: autobackup found: /u02/rman/ctl_c-4046377924-20111208-00
channel ORA_DISK_1: SPFILE restore from autobackup complete
Finished restore at 08-DEC-11

RMAN>

pfile 从spfile create 就可以了。

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总结： spfile 和pfile 在数据库open和shutdown 的两种情况下的恢复成功。

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