1，在azure上开始备份
以前因为测试环境服务器不够，所以在云上临时分配了几台oracle服务器，现在从idc退回了几台性能好的db服务器，所以要将云上临时分片的oracle迁移到退回的这几台服务器上。
先在云上进行rman全备份：
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[root@yueworldoracle ~]# bash -x /oracle/backup/scripts/rman_full_backup.sh ++ date +%F + export DATE=2016-04-05 + DATE=2016-04-05 + export BACK_DIR=/data/backup/data + BACK_DIR=/data/backup/data + su - oracle -c ' mkdir -p /data/backup/data/2016-04-05 rman log=/data/backup/data/2016-04-05/rman_backup.log target / <<EOF run{ backup as compressed backupset database format '\''/data/backup/data/2016-04-05/full_%d_%T_%s.bak'\'' plus archivelog format '\''/data/backup/data/2016-04-05/arch_%d_%T_%s.bak'\'' delete input; sql '\''alter system archive log current'\''; } crosscheck backup; crosscheck archivelog all; delete noprompt expired backup; delete noprompt expired archivelog all; delete noprompt obsolete; exit EOF ' RMAN> 2> 3> 4> 5> 6> 7> RMAN> RMAN> RMAN> RMAN> RMAN> RMAN> + su - oracle -c ' chmod 775 /data/backup/data/2016-04-05/* ' + echo 'begin to copy the backup to pd servers.' + echo 'end to copy the backup to pd server.' [root@yueworldoracle ~]# |
2，重新备份控制文件
查看备份控制文件，发现在backup集合中没有找到：
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RMAN> list backup of spfile;
using target database control file instead of recovery catalog specification does not match any backup in the repository
RMAN>
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原blog地址：http://blog.csdn.net/mchdba/article/details/51079138 ，原作者mchdba（黄杉）谢绝转载。
所以自己手动备份一个：
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RMAN> backup current controlfile;
Starting backup at 05-APR-16 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=45 device type=DISK channel ORA_DISK_1: starting full datafile backup set channel ORA_DISK_1: specifying datafile(s) in backup set including current control file in backup set channel ORA_DISK_1: starting piece 1 at 05-APR-16 channel ORA_DISK_1: finished piece 1 at 05-APR-16 piece handle=/oracle/app/oracle/flash_recovery_area/PDUNQ/backupset/2016_04_05/o1_mf_ncnnf_TAG20160405T225847_cj7noc77_.bkp tag=TAG20160405T225847 comment=NONE channel ORA_DISK_1: backup set complete, elapsed time: 00:00:04 Finished backup at 05-APR-16
Starting Control File and SPFILE Autobackup at 05-APR-16 RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03009: failure of Control File and SPFILE Autobackup command on ORA_DISK_1 channel at 04/05/2016 22:58:57 ORA-19504: failed to create file "/pddata2/oracle/backup/data/ctl_auto/c-3391761643-20160405-01" ORA-27041: unable to open file Linux-x86_64 Error: 2: No such file or directory Additional information: 9
RMAN> |
再去插看备份文件，就可以找到了：
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RMAN> list backup of controlfile;
List of Backup Sets ===================
BS Key Type LV Size Device Type Elapsed Time Completion Time ------- ---- -- ---------- ----------- ------------ --------------- 5243 Full 18.33M DISK 00:00:06 05-APR-16 BP Key: 5247 Status: AVAILABLE Compressed: NO Tag: TAG20160405T225847 Piece Name: /oracle/app/oracle/flash_recovery_area/PDUNQ/backupset/2016_04_05/o1_mf_ncnnf_TAG20160405T225847_cj7noc77_.bkp Control File Included: Ckp SCN: 11981165464 Ckp time: 05-APR-16
RMAN>
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3，备份参数文件
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SQL> create pfile='/oracle/pfile_20160405.ora' from spfile;
File created.
SQL>
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4，进行备份文件传输
因为是azure云环境传输到自己机房，所以未来防止网络传输过程中小文件被丢失的情况，先把所有的备份文件都统一copy到2016-04-05文件夹里面去，然后进行压缩：tar -zcvf 2016-04-05.tar.gz 2016-04-05，然后进行传输一个大大的压缩包即可，这样能保证传输过程的安全和稳定，如下所示：
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[root@yueworldoracle data]# tar -zcvf 2016-04-05.tar.gz 2016-04-05 2016-04-05/ 2016-04-05/arch_POWERDES_20160405_5593.bak 2016-04-05/full_POWERDES_20160405_5595.bak 2016-04-05/arch_POWERDES_20160405_5594.bak 2016-04-05/rman_backup.log 2016-04-05/arch_POWERDES_20160405_5591.bak 2016-04-05/arch_POWERDES_20160405_5596.bak 2016-04-05/arch_POWERDES_20160405_5592.bak 2016-04-05/arch_POWERDES_20160405_5590.bak [root@yueworldoracle data]# [root@yueworldoracle data]# time scp /data/backup/data/2016-04-05.tar.gz oracle@192.168.121.61:/oracle/ oracle@192.168.121.61's password: 2016-04-05.tar.gz 100% 10GB 6.1MB/s 28:55
real 28m57.412s user 1m1.240s sys 0m27.539s You have new mail in /var/spool/mail/root [root@yueworldoracle data]# |
以下都在待恢复的oracle服务器上操作：
5，在恢复的oracle服务器上以nomount方式启动数据库
先进行解压缩：
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[root@chhj_test_121_61 oradata]# tar -xvf 2016-04-05.tar.gz 2016-04-05/ 2016-04-05/arch_POWERDES_20160405_5593.bak 2016-04-05/full_POWERDES_20160405_5595.bak 2016-04-05/arch_POWERDES_20160405_5594.bak 2016-04-05/rman_backup.log 2016-04-05/arch_POWERDES_20160405_5591.bak 2016-04-05/arch_POWERDES_20160405_5596.bak 2016-04-05/arch_POWERDES_20160405_5592.bak 2016-04-05/arch_POWERDES_20160405_5590.bak [root@chhj_test_121_61 oradata]# |
然后开始利用备份的参数文件启动oracle到nomount：
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SQL> startup nomount pfile='/oracle/pfile_20160405.ora'; ORACLE instance started.
Total System Global Area 1.1358E+10 bytes Fixed Size 2216744 bytes Variable Size 7650413784 bytes Database Buffers 3690987520 bytes Redo Buffers 13946880 bytes SQL> |
6，恢复控制文件
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RMAN> restore controlfile to '/home/oradata/powerdes/control01.ctl' from '/oracle/o1_mf_ncnnf_TAG20160405T225847_cj7noc77_.bkp' ;
Starting restore at 06-APR-16 using channel ORA_DISK_1
channel ORA_DISK_1: restoring control file channel ORA_DISK_1: restore complete, elapsed time: 00:00:01 Finished restore at 06-APR-16
RMAN> |
7，将数据库改成mount
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RMAN> alter database mount;
database mounted released channel: ORA_DISK_1
RMAN> |
8，注册备份文件集
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RMAN> catalog start with '/home/oradata/2016-04-05';
Starting implicit crosscheck backup at 06-APR-16 allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=1153 device type=DISK Crosschecked 7 objects Finished implicit crosscheck backup at 06-APR-16
Starting implicit crosscheck copy at 06-APR-16 using channel ORA_DISK_1 Crosschecked 2 objects Finished implicit crosscheck copy at 06-APR-16
searching for all files in the recovery area cataloging files... no files cataloged
searching for all files that match the pattern /home/oradata/2016-04-05
List of Files Unknown to the Database ===================================== File Name: /home/oradata/2016-04-05.tar.gz File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5592.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5596.bak File Name: /home/oradata/2016-04-05/rman_backup.log File Name: /home/oradata/2016-04-05/full_POWERDES_20160405_5595.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5590.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5594.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5593.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5591.bak
Do you really want to catalog the above files (enter YES or NO)? YES cataloging files... cataloging done
List of Cataloged Files ======================= File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5592.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5596.bak File Name: /home/oradata/2016-04-05/full_POWERDES_20160405_5595.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5590.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5594.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5593.bak File Name: /home/oradata/2016-04-05/arch_POWERDES_20160405_5591.bak
List of Files Which Where Not Cataloged ======================================= File Name: /home/oradata/2016-04-05.tar.gz RMAN-07517: Reason: The file header is corrupted File Name: /home/oradata/2016-04-05/rman_backup.log RMAN-07517: Reason: The file header is corrupted
RMAN> |
9，开始执行restore恢复操作，将数据从备份集写入到磁盘上的数据文件里面，还原已经备份的数据文件
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RMAN> restore database;
Starting restore at 06-APR-16 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 00001 to /home/oradata/powerdes/system01.dbf channel ORA_DISK_1: restoring datafile 00002 to /home/oradata/powerdes/sysaux01.dbf channel ORA_DISK_1: restoring datafile 00003 to /home/oradata/powerdes/undotbs01.dbf channel ORA_DISK_1: restoring datafile 00004 to /home/oradata/powerdes/users01.dbf channel ORA_DISK_1: restoring datafile 00005 to /home/oradata/powerdes/powerdesk01.dbf channel ORA_DISK_1: restoring datafile 00006 to /home/oradata/powerdes/plas01.dbf channel ORA_DISK_1: restoring datafile 00007 to /home/oradata/powerdes/pl01.dbf channel ORA_DISK_1: restoring datafile 00008 to /home/oradata/powerdes/help01.dbf channel ORA_DISK_1: restoring datafile 00009 to /home/oradata/powerdes/adobelc01.dbf channel ORA_DISK_1: restoring datafile 00010 to /home/oradata/powerdes/sms01.dbf channel ORA_DISK_1: restoring datafile 00011 to /home/oradata/powerdes/plcrm01.dbf channel ORA_DISK_1: restoring datafile 00012 to /home/oradata/powerdes/powerdesk02.dbf channel ORA_DISK_1: restoring datafile 00013 to /home/oradata/powerdes/datagm01.dbf channel ORA_DISK_1: reading from backup piece /home/oradata/2016-04-05/full_POWERDES_20160405_5595.bak channel ORA_DISK_1: piece handle=/home/oradata/2016-04-05/full_POWERDES_20160405_5595.bak tag=TAG20160405T204221 channel ORA_DISK_1: restored backup piece 1 channel ORA_DISK_1: restore complete, elapsed time: 00:18:35 Finished restore at 06-APR-16
RMAN> |
10，recover database应用归档日志恢复数据文件
开始recoverdatabase恢复：
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RMAN> recover database;
Starting recover at 06-APR-16 using channel ORA_DISK_1
starting media recovery
channel ORA_DISK_1: starting archived log restore to default destination channel ORA_DISK_1: restoring archived log archived log thread=1 sequence=301 channel ORA_DISK_1: restoring archived log archived log thread=1 sequence=302 channel ORA_DISK_1: reading from backup piece /home/oradata/2016-04-05/arch_POWERDES_20160405_5596.bak channel ORA_DISK_1: piece handle=/home/oradata/2016-04-05/arch_POWERDES_20160405_5596.bak tag=TAG20160405T222327 channel ORA_DISK_1: restored backup piece 1 channel ORA_DISK_1: restore complete, elapsed time: 00:00:04 archived log file name=/oracle/app/oracle/flash_recovery_area/PDUNQ/archivelog/2016_04_06/o1_mf_1_301_cj7w0c0c_.arc thread=1 sequence=301 channel default: deleting archived log(s) archived log file name=/oracle/app/oracle/flash_recovery_area/PDUNQ/archivelog/2016_04_06/o1_mf_1_301_cj7w0c0c_.arc RECID=85662 STAMP=908413453 archived log file name=/oracle/app/oracle/flash_recovery_area/PDUNQ/archivelog/2016_04_06/o1_mf_1_302_cj7w0c33_.arc thread=1 sequence=302 channel default: deleting archived log(s) archived log file name=/oracle/app/oracle/flash_recovery_area/PDUNQ/archivelog/2016_04_06/o1_mf_1_302_cj7w0c33_.arc RECID=85661 STAMP=908413453 unable to find archived log archived log thread=1 sequence=303 RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of recover command at 04/06/2016 01:04:18 RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 303 and starting SCN of 11981163537
RMAN> |
需要将缺失的归档日志从云上的原始备份库copy到本地自己机房的oracle服务器上，或者直接恢复到SCN点上：
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RMAN> recover database until scn 11981163537;
Starting recover at 06-APR-16 using channel ORA_DISK_1
starting media recovery media recovery complete, elapsed time: 00:00:01
Finished recover at 06-APR-16
RMAN> |
11，开始打开数据库
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RMAN> alter database open resetlogs;
database opened
RMAN> |
12，验证测试数据库
做tnsname配置：
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[oracle@chhj_test_121_61 admin]$ more tnsnames.ora # tnsnames.ora Network Configuration File: /oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora # Generated by Oracle configuration tools.
EARTH61 = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.121.61)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = powerdes) ) )
[oracle@chhj_test_121_61 admin]$ |
开始登录建表验证：
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[oracle@chhj_test_121_61 admin]$ rlwrap sqlplus powerdesk/earthyueworld0311@EARTH61;
SQL*Plus: Release 11.2.0.1.0 Production on Wed Apr 6 01:24:28 2016
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> SQL> SQL> create table z_te(id number);
Table created.
SQL> insert into z_te(id)values(1);
1 row created.
SQL> commit;
Commit complete.
SQL> select * from z_te;
ID ---------- 1
SQL> drop table z_te;
Table dropped.
SQL> select * from z_te; select * from z_te * ERROR at line 1: ORA-00942: table or view does not exist
SQL> |
看到ddl、dml操作正常，此致使用rman备份进行数据库迁移顺利完成。