Oracle 11g RAC ASM磁盘全部丢失后的恢复（二）
4.2 修改CRS注册表中相关配置信息
(1) 挂载新的ASM磁盘组
- [grid@rac1 ~]$ sqlplus / as sysasm
- SQL*Plus: Release 11.2.0.3.0 Production on Sat Jul 6 00:16:05 2013
- Copyright (c) 1982, 2011, Oracle. All rights reserved.
- Connected to:
- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
- With the Real Application Clusters and Automatic Storage Management options
- SQL>
- SQL> selectname,state from v$asm_diskgroup;
- NAME STATE
- ------------------------------ -----------
- SYSTEMDG MOUNTED
- ARCLOGDG DISMOUNTED
- DATADG DISMOUNTED
- SQL> alter diskgroup ARCLOGDG,DATADG mount;
- Diskgroup altered.
(2) 更改CRS配置文件中数据库的磁盘组为DATADG和ARCLOGDG
- [root@rac1 ~]# srvctl modifydatabase -d csdb -a "DATADG,ARCLOGDG"
(3) 禁用并删除原来的磁盘组DATA
- [root@rac1 ~]# srvctl disable diskgroup -g DATA
- [root@rac1 ~]# srvctl remove diskgroup -g DATA
- [root@rac1 rac-cluster]# crs_stat -t -v
- Name Type R/RA F/FT Target State Host
- ----------------------------------------------------------------------
- ora....OGDG.dg ora....up.type 0/5 0/ ONLINE ONLINE rac1
- ora.DATADG.dg ora....up.type 0/5 0/ ONLINE ONLINE rac1
- ora....ER.lsnr ora....er.type 0/5 0/ ONLINE ONLINE rac1
- ora....N1.lsnr ora....er.type 0/5 0/0 ONLINE ONLINE rac1
- ora.asm ora.asm.type 0/5 0/ ONLINE ONLINE rac1
- ora.csdb.db ora....se.type 0/2 0/1 ONLINE OFFLINE
- ora.cvu ora.cvu.type 0/5 0/0 ONLINE ONLINE rac1
- ora.gsd ora.gsd.type 0/5 0/ OFFLINE OFFLINE
- ora....network ora....rk.type 0/5 0/ ONLINE ONLINE rac1
- ora.oc4j ora.oc4j.type 0/1 0/2 ONLINE ONLINE rac1
- ora.ons ora.ons.type 0/3 0/ ONLINE ONLINE rac1
- ora....SM1.asm application 0/5 0/0 ONLINE ONLINE rac1
- ora....C1.lsnr application 0/5 0/0 ONLINE ONLINE rac1
- ora.rac1.gsd application 0/5 0/0 OFFLINE OFFLINE
- ora.rac1.ons application 0/3 0/0 ONLINE ONLINE rac1
- ora.rac1.vip ora....t1.type 0/0 0/0 ONLINE ONLINE rac1
- ora.rac2.vip ora....t1.type 0/0 0/0 ONLINE ONLINE rac1
- ora.scan1.vip ora....ip.type 0/0 0/0 ONLINE ONLINE rac1
(4) 在OCR注册表中修改Oracle数据库参数文件的位置
- [root@rac1 ~]# srvctl modifydatabase -d csdb -p +DATADG/csdb/spfilecsdb.ora
4.3 恢复数据库
(1) 查看备份文件路径和名称
- [root@rac1 ~]# su - oracle
- [oracle@rac1 ~]$
- [oracle@rac1 ~]$ cd /u01/app/oracle/backup
- [oracle@rac1 backup]$ ll
- total 221796
- -rw-r----- 1 oracle asmadmin 5357568 Jul 5 15:19 arc_819991156_9.bk
- -rw-r----- 1 oracle asmadmin 2560 Jul 5 15:19 arc_819991158_11.bk
- -rw-r----- 1 oracle asmadmin 203104256 Jul 5 15:18 CSDB_819991120_5.bk
- -rw-r----- 1 oracle asmadmin 18546688 Jul 5 15:19 ctl_file_0coe04jq_1_1_20130705.ctl
- -rw-r----- 1 oracle asmadmin 98304 Jul 5 15:19 spfile_0doe04js_1_1_20130705
- [oracle@rac1 backup]$
(2) 创建一个基本的启动参数文件，以便启动数据库到nomout状态恢复spfile
- [oracle@rac1 ~]$ touch /u01/app/oracle/backup/init.ora
- [oracle@rac1 ~]$ vi /u01/app/oracle/backup/init.ora
- *.db_name='csdb'
- *.remote_login_passwordfile='exclusive'
(3) 使用刚创建的参数文件将数据库启动到nomount状态
- [oracle@rac1 ~]$ sqlplus / as sysdba
- SQL*Plus: Release 11.2.0.3.0 Production on Sat Jul 6 13:56:06 2013
- Copyright (c) 1982, 2011, Oracle. All rights reserved.
- Connected to an idle instance.
- SQL> startup nomount pfile='/u01/app/oracle/backup/init.ora';
- ORACLE instance started.
- Total System Global Area 238034944 bytes
- Fixed Size 2227136 bytes
- Variable Size 180356160 bytes
- Database Buffers 50331648 bytes
- Redo Buffers 5120000 bytes
- SQL>
(4) 使用RMAN恢复SPFILE到ASM磁盘组DATADG
- [oracle@rac1 ~]$ rman target /
- Recovery Manager: Release 11.2.0.3.0 - Production on Sat Jul 6 13:59:26 2013
- Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
- connected to target database: CSDB (not mounted)
- RMAN> restore spfile to'+DATADG/csdb/spfilecsdb.ora'from'/u01/app/oracle/backup/spfile_0doe04js_1_1_20130705';
- Starting restore at 06-JUL-13
- using channel ORA_DISK_1
- channel ORA_DISK_1: restoring spfile from AUTOBACKUP /u01/app/oracle/backup/spfile_0doe04js_1_1_20130705
- channel ORA_DISK_1: SPFILE restore from AUTOBACKUP complete
- Finished restore at 06-JUL-13
(5) 使用恢复后spfile启动数据库，并修改control_files，db_recovery_file_dest，log_archive_dest等存在旧路径的参数值。
- [oracle@rac1 ~]$ vi $ORACLE_HOME/dbs/initcsdb1.ora
- SPFILE='+DATADG/csdb/spfilecsdb.ora'
- [oracle@rac1 ~]$ sqlplus / as sysdba
- SQL*Plus: Release 11.2.0.3.0 Production on Sat Jul 6 14:11:58 2013
- Copyright (c) 1982, 2011, Oracle. All rights reserved.
- Connected to:
- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
- With the Partitioning, Real Application Clusters, OLAP, Data Mining
- andReal Application Testing options
- SQL> startup nomount force
- ORACLE instance started.
- Total System Global Area 1653518336 bytes
- Fixed Size 2228904 bytes
- Variable Size 1073745240 bytes
- Database Buffers 570425344 bytes
- Redo Buffers 7118848 bytes
- SQL>
- SQL> show parameter control_files
- NAME TYPE VALUE
- ------------------------------------ ----------- ------------------------------
- control_files string +DATA/csdb/control01.ctl, +DAT
- A/csdb/control02.ctl
- SQL>
- SQL> alter system set control_files='+DATADG/csdb/control01.ctl','+DATADG/csdb/control02.ctl' scope=spfile
- System altered.
- SQL> alter system set db_recovery_file_dest='+DATADG' scope=spfile;
- System altered.
- SQL> alter system set log_archive_dest_1='LOCATION=+ARCLOGDG' scope=spfile;
- System altered.
- SQL> startup force nomount;
- ORACLE instance started.
- Total System Global Area 1653518336 bytes
- Fixed Size 2228904 bytes
- Variable Size 1073745240 bytes
- Database Buffers 570425344 bytes
- Redo Buffers 7118848 bytes
(6) 查看数据库的DBID
- [oracle@rac1 ~]$ strings /u01/app/oracle/backup/CSDB_819991120_5.bk | grep MAXVALUE,
- 返回的值类似下面的例子，其中那一窜数字即为DBID。
- ...
- MAXVALUE, MAXVALUE!
- 3042905279, MAXVALUE,
- 3042905279, MAXVALUE,
- ...
(7) 恢复控制文件到新的ASM磁盘组DATADG
- [oracle@rac1 ~]$ rman target /
- Recovery Manager: Release 11.2.0.3.0 - Production on Sat Jul 6 14:28:28 2013
- Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
- connected to target database: CSDB (not mounted)
- RMAN> set dbid=3042905279
- executing command: SET DBID
- RMAN> restore controlfile from'/u01/app/oracle/backup/ctl_file_0coe04jq_1_1_20130705.ctl';
- Starting restore at 06-JUL-13
- using target database control file insteadof recovery catalog
- allocated channel: ORA_DISK_1
- channel ORA_DISK_1: SID=18 instance=csdb1 device type=DISK
- channel ORA_DISK_1: restoring control file
- channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
- output file name=+DATADG/csdb/control01.ctl
- output file name=+DATADG/csdb/control02.ctl
- Finished restore at 06-JUL-13
(8) 进入SQLPLUS，查看旧数据文件信息
- [oracle@rac1 ~]$ sqlplus / as sysdba
- SQL*Plus: Release 11.2.0.3.0 Production on Sat Jul 6 14:41:12 2013
- Copyright (c) 1982, 2011, Oracle. All rights reserved.
- Connected to:
- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
- With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
- Data Mining andReal Application Testing options
- SQL> alterdatabase mount;
- Database altered.
- SQL> col name format a50
- SQL> select file#,namefrom v$datafile;
- FILE# NAME
- ---------- --------------------------------------------------
- 1 +DATA/csdb/datafile/system.260.819979847
- 2 +DATA/csdb/datafile/sysaux.261.819979871
- 3 +DATA/csdb/datafile/undotbs1.262.819979889
- 4 +DATA/csdb/datafile/undotbs2.264.819979905
- 5 +DATA/csdb/datafile/users.265.819979913
(9) 使用RMAN恢复数据库
- RMAN> run{
- 2> set newname for datafile 1 to'+DATADG/csdb/datafile/system.260.819979847';
- 3> set newname for datafile 2 to'+DATADG/csdb/datafile/sysaux.261.819979871';
- 4> set newname for datafile 3 to'+DATADG/csdb/datafile/undotbs1.262.819979889';
- 5> set newname for datafile 4 to'+DATADG/csdb/datafile/undotbs2.264.819979905';
- 6> set newname for datafile 5 to'+DATADG/csdb/datafile/users.265.819979913';
- 7> restore database;
- 8> switch datafile all;
- 9> recover database;
- 10> }
- executing command: SET NEWNAME
- released channel: ORA_DISK_1
- executing command: SET NEWNAME
- executing command: SET NEWNAME
- executing command: SET NEWNAME
- executing command: SET NEWNAME
- Starting restore at 07-JUL-13
- Starting implicit crosscheck backup at 07-JUL-13
- allocated channel: ORA_DISK_1
- Crosschecked 10 objects
- Finished implicit crosscheck backup at 07-JUL-13
- Starting implicit crosscheck copy at 07-JUL-13
- using channel ORA_DISK_1
- Finished implicit crosscheck copy at 07-JUL-13
- searching forall files in the recovery area
- cataloging files...
- no files cataloged
- 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 00002 to +DATADG/csdb/datafile/sysaux.261.819979871
- channel ORA_DISK_1: restoring datafile 00003 to +DATADG/csdb/datafile/undotbs1.262.819979889
- channel ORA_DISK_1: reading from backup piece /u01/app/oracle/backup/CSDB_819991120_6.bk
- channel ORA_DISK_1: piece handle=/u01/app/oracle/backup/CSDB_819991120_6.bk tag=ORCL_HOT_DB_BK
- channel ORA_DISK_1: restored backup piece 1
- channel ORA_DISK_1: restore complete, elapsed time: 00:00:46
- 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 00001 to +DATADG/csdb/datafile/system.260.819979847
- channel ORA_DISK_1: restoring datafile 00004 to +DATADG/csdb/datafile/undotbs2.264.819979905
- channel ORA_DISK_1: restoring datafile 00005 to +DATADG/csdb/datafile/users.265.819979913
- channel ORA_DISK_1: reading from backup piece /u01/app/oracle/backup/CSDB_819991120_5.bk
- channel ORA_DISK_1: piece handle=/u01/app/oracle/backup/CSDB_819991120_5.bk tag=ORCL_HOT_DB_BK
- channel ORA_DISK_1: restored backup piece 1
- channel ORA_DISK_1: restore complete, elapsed time: 00:00:35
- Finished restore at 07-JUL-13
- datafile 1 switched to datafile copy
- input datafile copy RECID=6 STAMP=820112831 file name=+DATADG/csdb/datafile/system.284.820112797
- datafile 2 switched to datafile copy
- input datafile copy RECID=7 STAMP=820112831 file name=+DATADG/csdb/datafile/sysaux.282.820112751
- datafile 3 switched to datafile copy
- input datafile copy RECID=8 STAMP=820112831 file name=+DATADG/csdb/datafile/undotbs1.283.820112751
- datafile 4 switched to datafile copy
- input datafile copy RECID=9 STAMP=820112831 file name=+DATADG/csdb/datafile/undotbs2.285.820112797
- datafile 5 switched to datafile copy
- input datafile copy RECID=10 STAMP=820112831 file name=+DATADG/csdb/datafile/users.286.820112797
- Starting recover at 07-JUL-13
- using channel ORA_DISK_1
- starting media recovery
- channel ORA_DISK_1: starting archived log restore todefault destination
- channel ORA_DISK_1: restoring archived log
- archived log thread=1 sequence=15
- channel ORA_DISK_1: reading from backup piece /u01/app/oracle/backup/arc_819991156_9.bk
- channel ORA_DISK_1: piece handle=/u01/app/oracle/backup/arc_819991156_9.bk tag=TAG20130705T151916
- channel ORA_DISK_1: restored backup piece 1
- channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
- archived log file name=+ARCLOGDG/csdb/archivelog/2013_07_07/thread_1_seq_15.256.820112833 thread=1 sequence=15
- channel ORA_DISK_1: starting archived log restore todefault destination
- channel ORA_DISK_1: restoring archived log
- archived log thread=2 sequence=2
- channel ORA_DISK_1: restoring archived log
- archived log thread=1 sequence=16
- channel ORA_DISK_1: reading from backup piece /u01/app/oracle/backup/arc_819991156_10.bk
- channel ORA_DISK_1: piece handle=/u01/app/oracle/backup/arc_819991156_10.bk tag=TAG20130705T151916
- channel ORA_DISK_1: restored backup piece 1
- channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
- archived log file name=+ARCLOGDG/csdb/archivelog/2013_07_07/thread_2_seq_2.257.820112835 thread=2 sequence=2
- channel default: deleting archived log(s)
- archived log file name=+ARCLOGDG/csdb/archivelog/2013_07_07/thread_1_seq_15.256.820112833 RECID=5 STAMP=820112832
- archived log file name=+ARCLOGDG/csdb/archivelog/2013_07_07/thread_1_seq_16.258.820112835 thread=1 sequence=16
- channel default: deleting archived log(s)
- archived log file name=+ARCLOGDG/csdb/archivelog/2013_07_07/thread_2_seq_2.257.820112835 RECID=7 STAMP=820112834
- channel ORA_DISK_1: starting archived log restore todefault destination
- channel ORA_DISK_1: restoring archived log
- archived log thread=2 sequence=3
- channel ORA_DISK_1: reading from backup piece /u01/app/oracle/backup/arc_819991158_11.bk
- channel ORA_DISK_1: piece handle=/u01/app/oracle/backup/arc_819991158_11.bk tag=TAG20130705T151916
- channel ORA_DISK_1: restored backup piece 1
- channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
- archived log file name=+ARCLOGDG/csdb/archivelog/2013_07_07/thread_2_seq_3.257.820112837 thread=2 sequence=3
- channel default: deleting archived log(s)
- archived log file name=+ARCLOGDG/csdb/archivelog/2013_07_07/thread_2_seq_3.257.820112837 RECID=8 STAMP=820112835
- unable to find archived log
- archived log thread=2 sequence=4
- RMAN-00571: ===========================================================
- RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
- RMAN-00571: ===========================================================
- RMAN-03002: failure of recover command at 07/07/2013 01:07:16
- RMAN-06054: media recovery requesting unknown archived log for thread 2 withsequence 4 and starting SCN of 323980
(10) 更改REDO LOG位置信息
- SQL> select member from v$logfile;
- MEMBER
- --------------------------------------------------------------------------------
- +DATA/csdb/redo01.log
- +DATA/csdb/redo02.log
- +DATA/csdb/redo03.log
- +DATA/csdb/redo04.log
- SQL> alterdatabase rename file '+DATA/csdb/redo01.log'to'+DATADG/csdb/redo01.log';
- Database altered.
- SQL> alterdatabase rename file '+DATA/csdb/redo02.log'to'+DATADG/csdb/redo02.log';
- Database altered.
- SQL> alterdatabase rename file '+DATA/csdb/redo03.log'to'+DATADG/csdb/redo03.log';
- Database altered.
- SQL> alterdatabase rename file '+DATA/csdb/redo04.log'to'+DATADG/csdb/redo04.log';
- Database altered.
(11) 打开数据库
- SQL> alterdatabaseopen resetlogs;
- Database altered.
(12) 更改TEMP表空间文件位置
- SQL> selectnamefrom v$tempfile;
- NAME
- --------------------------------------------------------------------------------
- +DATA/csdb/tempfile/temp.263.819979895
- SQL> alter tablespace tempadd tempfile '+DATADG';
- Tablespace altered.
- SQL> alter tablespace tempdrop tempfile '+DATA/csdb/tempfile/temp.263.819979895';
- Tablespace altered
4.4 完成恢复操作
(1) 在其他RAC节点上更改OCR路径
- [root@rac2 ~]# vi /etc/oracle/ocr.loc
- ocrconfig_loc=+SYSTEMDG
- local_only=FALSE
(2) 在恢复节点上重启CRS
- [root@rac1 ~]# crsctl stop crs
- [root@rac1 ~]# crsctl start has
(3) 在其他节点上启动CRS
-
- [root@rac2 ~]# crsctl start crs
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