12C的PDB使用RMAN的4种完全恢复场景
2017-06-28 09:25
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1. 备份数据库
数据库打开归档模式
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /u01/app/oracle/product/12.2.0/db_1/dbs/arch
Oldest online log sequence 27
Current log sequence 29
SQL> alter system set log_archive_dest_1="location=/archive";
System altered.
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1207959552 bytes
Fixed Size 8792152 bytes
Variable Size 436209576 bytes
Database Buffers 754974720 bytes
Redo Buffers 7983104 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /archive
Oldest online log sequence 27
Next log sequence to archive 29
Current log sequence 29
SQL> alter database open;
Database altered.
备份数据库
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 SEED_PDB MOUNTED
4 NONCDB_PDP MOUNTED
5 CLON_PDB MOUNTED
6 TEST_PDB READ WRITE NO
7 PDB4 READ WRITE NO
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 20:28:36 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> backup database;
Starting backup at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=78 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00022 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/undotbs01.dbf
input datafile file number=00020 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/system01.dbf
input datafile file number=00021 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/sysaux01.dbf
input datafile file number=00023 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/users01.dbf
channel ORA_DISK_1: starting piece 1 at 11-JUN-17
channel ORA_DISK_1: starting piece 1 at 11-JUN-17
channel ORA_DISK_1: finished piece 1 at 11-JUN-17
piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00006 name=/u01/app/oracle/oradata/zylong/pdbseed/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/zylong/pdbseed/system01.dbf
input datafile file number=00008 name=/u01/app/oracle/oradata/zylong/pdbseed/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 11-JUN-17
channel ORA_DISK_1: finished piece 1 at 11-JUN-17
piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/07s6i7io_1_1 tag=TAG20170611T202849 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:27
Finished backup at 11-JUN-17
Starting Control File and SPFILE Autobackup at 11-JUN-17
piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/c-4281269484-20170611-00 comment=NONE
Finished Control File and SPFILE Autobackup at 11-JUN-17
RMAN> list backup summary;
List of Backups
===============
Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- --------------- ------- ------- ---------- ---
1 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
2 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
3 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
4 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
5 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
6 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
7 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
8 B F A DISK 11-JUN-17 1 1 NO TAG20170611T203252
2. 数据库open状态，普通表空间损坏
故障模拟
[oracle@12cr2 ~]$ sqlplus / as sysdba
SQL> alter session set container=PDB4;
Session altered.
SQL> select file_name from dba_data_files;
FILE_NAME
-------------------------------------------------------------------------------
/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf
[oracle@12cr2 ~]$ cp /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf .
cp: writing `./system01.dbf': No space left on device
[oracle@12cr2 ~]$ cp /u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf .
cp: writing `./sysaux01.dbf': No space left on device
[oracle@12cr2 ~]$ rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
[oracle@12cr2 ~]$ rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf上面cp报错是因为空间不足
故障现象
[root@12cr2 opt]# su - oracle
[oracle@12cr2 ~]$ sqlplus / as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Sun Jun 11 20:50:14 2017
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
SQL> alter session set container=PDB4;
Session altered.
SQL> select file_name from dba_data_files;
FILE_NAME
-------------------------------------------------------------------------------
/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf
SQL> create user test identified by oracle;
create user test identified by oracle
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01116: error in opening database file 38
ORA-01110: data file 38:
'/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
ORA-27041: unable to open file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
SQL> conn / as sysdba
SQL> alter pluggable database pdb4 close;
Pluggable database altered.
SQL> alter pluggable database pdb4 open;
alter pluggable database pdb4 open
*
ERROR at line 1:
ORA-01113: file 40 needs media recovery
ORA-01110: data file 40:
'/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 20:57:18 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:system;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=52 device type=DISK
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00038 to /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 11-JUN-17
RMAN> restore tablespace pdb4:sysaux;
Starting restore at 11-JUN-17
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00039 to /u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 11-JUN-17
RMAN> recover tablespace pdb4:system;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> recover tablespace pdb4:sysaux;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable
ea9d
database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:00:12
ORA-01113: file 40 needs media recovery
ORA-01110: data file 40: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf'
RMAN> recover tablespace pdb4:UNDOTBS1;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
恢复后现象
[oracle@12cr2 ~]$ sqlplus / as sysdba
SQL> alter session set container=PDB4;
Session altered.
SQL> select username from dba_users where username='TEST';
no rows selected
3. 数据库关闭状态，系统表空间损坏
模拟现象
SQL> alter pluggable database pdb4 close;
Pluggable database altered.
SQL> !rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
SQL> alter pluggable database pdb4 open;
alter pluggable database pdb4 open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 38 - see DBWR trace file
ORA-01110: data file 38:
'/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 22:00:41 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:system;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=52 device type=DISK
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00038 to /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
Finished restore at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 22:01:32
ORA-01113: file 38 needs media recovery
ORA-01110: data file 38: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
RMAN> recover tablespace pdb4:system;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:01
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
4. 数据库关闭状态，普通表空间损坏
模拟故障
SQL> alter pluggable database pdb4 close;
Pluggable database altered.
[oracle@12cr2 ~]$ rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
SQL> alter pluggable database pdb4 open;
alter pluggable database pdb4 open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 41 - see DBWR trace file
ORA-01110: data file 41: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 22:05:53 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:users;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=82 device type=DISK
creating datafile file number=41 name=/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
restore not done; all files read only, offline, excluded, or already restored
Finished restore at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 22:06:22
ORA-01113: file 41 needs media recovery
ORA-01110: data file 41: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf'
RMAN> recover tablespace pdb4:users;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
5. 数据库open状态，未备份的数据文件恢复
模拟故障
SQL> create tablespace users datafile '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf' size 20M;
Tablespace created.
SQL> create user test identified by oracle default tablespace users;
User created.
SQL> grant dba to test;
Grant succeeded.
SQL> conn test/oracle@192.168.16.81:1521/pdb4
Connected.
SQL> create table test as select * from all_objects where rownum<100;
Table created.
SQL> commit;
Commit complete.
SQL> !rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
故障后的现象
SQL> select count(*) from test;
COUNT(*)
----------
99
SQL> insert into test select * from test;
99 rows created.
SQL> commit;
Commit complete.
SQL> insert into test select * from test;
198 rows created.
SQL> commit;
Commit complete.
SQL> alter system checkpoint;
alter system checkpoint
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel
Process ID: 5970
Session ID: 52 Serial number: 5849
SQL> insert into test select * from test;
ERROR:
ORA-03114: not connected to ORACLE
SQL> conn test/oracle@192.168.16.81:1521/pdb4
ERROR:
ORA-01033: ORACLE initialization or shutdown in progress
Process ID: 0
Session ID: 0 Serial number: 0
SQL> conn / as sysdba
Connected.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 SEED_PDB MOUNTED
4 NONCDB_PDP MOUNTED
5 CLON_PDB MOUNTED
6 TEST_PDB READ WRITE NO
7 PDB4 MOUNTED
SQL> alter pluggable database PDB4 open;
alter pluggable database PDB4 open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 41 - see DBWR trace file
ORA-01110: data file 41: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 21:28:14 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:users;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=77 device type=DISK
creating datafile file number=41 name=/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
restore not done; all files read only, offline, excluded, or already restored
Finished restore at 11-JUN-17
RMAN> recover tablespace pdb4:users;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
using target database control file instead of recovery catalog
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:35:30
ORA-01113: file 40 needs media recovery
ORA-01110: data file 40: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf'
RMAN> recover tablespace pdb4:UNDOTBS1;
Starting recover at 11-JUN-17
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=71 device type=DISK
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:37:09
ORA-01113: file 39 needs media recovery
ORA-01110: data file 39: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf'
RMAN> recover tablespace pdb4:sysaux;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:37:43
ORA-01113: file 38 needs media recovery
ORA-01110: data file 38: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
RMAN> recover tablespace pdb4:system;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
恢复后的现象
SQL> conn test/oracle@192.168.16.81:1521/pdb4
Connected.
SQL> select count(*) from test;
COUNT(*)
----------
396如果PDB4没有关闭，可以restore tablespace pdb4:users可能会报错，可以尝试执行以下命令在restore：
数据库打开归档模式
SQL> archive log list;
Database log mode No Archive Mode
Automatic archival Disabled
Archive destination /u01/app/oracle/product/12.2.0/db_1/dbs/arch
Oldest online log sequence 27
Current log sequence 29
SQL> alter system set log_archive_dest_1="location=/archive";
System altered.
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1207959552 bytes
Fixed Size 8792152 bytes
Variable Size 436209576 bytes
Database Buffers 754974720 bytes
Redo Buffers 7983104 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /archive
Oldest online log sequence 27
Next log sequence to archive 29
Current log sequence 29
SQL> alter database open;
Database altered.
备份数据库
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 SEED_PDB MOUNTED
4 NONCDB_PDP MOUNTED
5 CLON_PDB MOUNTED
6 TEST_PDB READ WRITE NO
7 PDB4 READ WRITE NO
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 20:28:36 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> backup database;
Starting backup at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=78 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00022 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/undotbs01.dbf
input datafile file number=00020 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/system01.dbf
input datafile file number=00021 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/sysaux01.dbf
input datafile file number=00023 name=/u01/app/oracle/oradata/zylong/noncdb_pdp/users01.dbf
channel ORA_DISK_1: starting piece 1 at 11-JUN-17
channel ORA_DISK_1: starting piece 1 at 11-JUN-17
channel ORA_DISK_1: finished piece 1 at 11-JUN-17
piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00006 name=/u01/app/oracle/oradata/zylong/pdbseed/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/zylong/pdbseed/system01.dbf
input datafile file number=00008 name=/u01/app/oracle/oradata/zylong/pdbseed/undotbs01.dbf
channel ORA_DISK_1: starting piece 1 at 11-JUN-17
channel ORA_DISK_1: finished piece 1 at 11-JUN-17
piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/07s6i7io_1_1 tag=TAG20170611T202849 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:27
Finished backup at 11-JUN-17
Starting Control File and SPFILE Autobackup at 11-JUN-17
piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/c-4281269484-20170611-00 comment=NONE
Finished Control File and SPFILE Autobackup at 11-JUN-17
RMAN> list backup summary;
List of Backups
===============
Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- --------------- ------- ------- ---------- ---
1 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
2 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
3 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
4 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
5 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
6 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
7 B F A DISK 11-JUN-17 1 1 NO TAG20170611T202849
8 B F A DISK 11-JUN-17 1 1 NO TAG20170611T203252
2. 数据库open状态，普通表空间损坏
故障模拟
[oracle@12cr2 ~]$ sqlplus / as sysdba
SQL> alter session set container=PDB4;
Session altered.
SQL> select file_name from dba_data_files;
FILE_NAME
-------------------------------------------------------------------------------
/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf
[oracle@12cr2 ~]$ cp /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf .
cp: writing `./system01.dbf': No space left on device
[oracle@12cr2 ~]$ cp /u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf .
cp: writing `./sysaux01.dbf': No space left on device
[oracle@12cr2 ~]$ rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
[oracle@12cr2 ~]$ rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf上面cp报错是因为空间不足
[oracle@12cr2 ~]$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 46G 43G 17M 100% / tmpfs 1.9G 72K 1.9G 1% /dev/shm [oracle@12cr2 ~]$ sqlplus / as sysdba SQL*Plus: Release 12.2.0.1.0 Production on Sun Jun 11 20:48:43 2017 Copyright (c) 1982, 2016, Oracle. All rights reserved. ERROR: ORA-09817: Write to audit file failed. Linux-x86_64 Error: 28: No space left on device Additional information: 12 ORA-01075: you are currently logged on [root@12cr2 opt]# rm -rf linuxx64_12201_database.zip [root@12cr2 opt]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 46G 40G 3.3G 93% / tmpfs 1.9G 72K 1.9G 1% /dev/shm
故障现象
[root@12cr2 opt]# su - oracle
[oracle@12cr2 ~]$ sqlplus / as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Sun Jun 11 20:50:14 2017
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
SQL> alter session set container=PDB4;
Session altered.
SQL> select file_name from dba_data_files;
FILE_NAME
-------------------------------------------------------------------------------
/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf
/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf
SQL> create user test identified by oracle;
create user test identified by oracle
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01116: error in opening database file 38
ORA-01110: data file 38:
'/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
ORA-27041: unable to open file
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
SQL> conn / as sysdba
SQL> alter pluggable database pdb4 close;
Pluggable database altered.
SQL> alter pluggable database pdb4 open;
alter pluggable database pdb4 open
*
ERROR at line 1:
ORA-01113: file 40 needs media recovery
ORA-01110: data file 40:
'/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 20:57:18 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:system;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=52 device type=DISK
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00038 to /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 11-JUN-17
RMAN> restore tablespace pdb4:sysaux;
Starting restore at 11-JUN-17
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00039 to /u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 11-JUN-17
RMAN> recover tablespace pdb4:system;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> recover tablespace pdb4:sysaux;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable
ea9d
database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:00:12
ORA-01113: file 40 needs media recovery
ORA-01110: data file 40: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf'
RMAN> recover tablespace pdb4:UNDOTBS1;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
恢复后现象
[oracle@12cr2 ~]$ sqlplus / as sysdba
SQL> alter session set container=PDB4;
Session altered.
SQL> select username from dba_users where username='TEST';
no rows selected
3. 数据库关闭状态，系统表空间损坏
模拟现象
SQL> alter pluggable database pdb4 close;
Pluggable database altered.
SQL> !rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
SQL> alter pluggable database pdb4 open;
alter pluggable database pdb4 open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 38 - see DBWR trace file
ORA-01110: data file 38:
'/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 22:00:41 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:system;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=52 device type=DISK
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00038 to /u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1
channel ORA_DISK_1: piece handle=/u01/app/oracle/product/12.2.0/db_1/dbs/06s6i7hv_1_1 tag=TAG20170611T202849
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:03
Finished restore at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 22:01:32
ORA-01113: file 38 needs media recovery
ORA-01110: data file 38: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
RMAN> recover tablespace pdb4:system;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:01
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
4. 数据库关闭状态，普通表空间损坏
模拟故障
SQL> alter pluggable database pdb4 close;
Pluggable database altered.
[oracle@12cr2 ~]$ rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
SQL> alter pluggable database pdb4 open;
alter pluggable database pdb4 open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 41 - see DBWR trace file
ORA-01110: data file 41: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 22:05:53 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:users;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=82 device type=DISK
creating datafile file number=41 name=/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
restore not done; all files read only, offline, excluded, or already restored
Finished restore at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 22:06:22
ORA-01113: file 41 needs media recovery
ORA-01110: data file 41: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf'
RMAN> recover tablespace pdb4:users;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
5. 数据库open状态，未备份的数据文件恢复
模拟故障
SQL> create tablespace users datafile '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf' size 20M;
Tablespace created.
SQL> create user test identified by oracle default tablespace users;
User created.
SQL> grant dba to test;
Grant succeeded.
SQL> conn test/oracle@192.168.16.81:1521/pdb4
Connected.
SQL> create table test as select * from all_objects where rownum<100;
Table created.
SQL> commit;
Commit complete.
SQL> !rm /u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
故障后的现象
SQL> select count(*) from test;
COUNT(*)
----------
99
SQL> insert into test select * from test;
99 rows created.
SQL> commit;
Commit complete.
SQL> insert into test select * from test;
198 rows created.
SQL> commit;
Commit complete.
SQL> alter system checkpoint;
alter system checkpoint
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel
Process ID: 5970
Session ID: 52 Serial number: 5849
SQL> insert into test select * from test;
ERROR:
ORA-03114: not connected to ORACLE
SQL> conn test/oracle@192.168.16.81:1521/pdb4
ERROR:
ORA-01033: ORACLE initialization or shutdown in progress
Process ID: 0
Session ID: 0 Serial number: 0
SQL> conn / as sysdba
Connected.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 SEED_PDB MOUNTED
4 NONCDB_PDP MOUNTED
5 CLON_PDB MOUNTED
6 TEST_PDB READ WRITE NO
7 PDB4 MOUNTED
SQL> alter pluggable database PDB4 open;
alter pluggable database PDB4 open
*
ERROR at line 1:
ORA-01157: cannot identify/lock data file 41 - see DBWR trace file
ORA-01110: data file 41: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf'
恢复
[oracle@12cr2 ~]$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Sun Jun 11 21:28:14 2017
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ZYLONG (DBID=4281269484)
RMAN> restore tablespace pdb4:users;
Starting restore at 11-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=77 device type=DISK
creating datafile file number=41 name=/u01/app/oracle/oradata/zylong/pdb4/pdb4/users01.dbf
restore not done; all files read only, offline, excluded, or already restored
Finished restore at 11-JUN-17
RMAN> recover tablespace pdb4:users;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
using target database control file instead of recovery catalog
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:35:30
ORA-01113: file 40 needs media recovery
ORA-01110: data file 40: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/undotbs01.dbf'
RMAN> recover tablespace pdb4:UNDOTBS1;
Starting recover at 11-JUN-17
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=71 device type=DISK
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:37:09
ORA-01113: file 39 needs media recovery
ORA-01110: data file 39: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/sysaux01.dbf'
RMAN> recover tablespace pdb4:sysaux;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 06/11/2017 21:37:43
ORA-01113: file 38 needs media recovery
ORA-01110: data file 38: '/u01/app/oracle/oradata/zylong/pdb4/pdb4/system01.dbf'
RMAN> recover tablespace pdb4:system;
Starting recover at 11-JUN-17
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 11-JUN-17
RMAN> alter pluggable database pdb4 open;
Statement processed
恢复后的现象
SQL> conn test/oracle@192.168.16.81:1521/pdb4
Connected.
SQL> select count(*) from test;
COUNT(*)
----------
396如果PDB4没有关闭，可以restore tablespace pdb4:users可能会报错，可以尝试执行以下命令在restore：
SQL > alter tablespace users offline immediate; recover之后online SQL > alter tablespace users online;
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