rac归档在本地的备份和恢复
rac归档在本地的备份和恢复
os：Red Hat Enterprise Linux Server release 5.1 (Tikanga)
oracle：Oracle Database 10g Enterprise Edition Release 10.2.0.1.0
两个节点rac1 rac2
归档在本地目录：
log_archive_dest_1 string location=/home/oracle/archive
第一节点归档目录
[oracle@rac1 ~]$ ls
archive rmanbak
第二节点归档目录
[oracle@rac2 ~]$ ls
archive rmanbak
在第一节点执行备份和恢复
备份文件放在rmanbak目录，每个节点的归档备份在各自的rmanbak目录下
rman配置自动备份控制文件
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/home/oracle/rmanbak/%F';
采用脚本如下：
ORAHOME=/u01/app/product/10.2.0/db_1
ORAOWNER=oracle
dt=`date +%m%d`
su - $ORAOWNER -c "$ORAHOME/bin/rman target / log /home/oracle/rmanbak/backup_$dt.log << EOF
RUN {
ALLOCATE CHANNEL c1 TYPE DISK;
ALLOCATE CHANNEL c2 TYPE DISK;
BACKUP full
TAG hot_db_bk_level0
FILESPERSET 2
FORMAT '/home/oracle/rmanbak/fullbk_%s_%p_%t'
DATABASE;
sql 'alter system archive log current';
RELEASE CHANNEL c1;
RELEASE CHANNEL c2;
ALLOCATE CHANNEL c1 TYPE DISK connect 'sys/admin123@syk1';
ALLOCATE CHANNEL c2 TYPE DISK connect 'sys/admin123@syk2';
BACKUP
FORMAT '/home/oracle/rmanbak/arch_%s_%p_%t'
ARCHIVELOG ALL DELETE INPUT;
delete noprompt obsolete;
RELEASE CHANNEL c1;
RELEASE CHANNEL c2;
}
EOF"
备份完成后备份文件如下：
[oracle@rac1 rmanbak]$ ls
arch_121_1_758986045 c-921635118-20110812-02 fullbk_117_1_758985958 fullbk_119_1_758986006
arch_123_1_758986047 backup_0812.log fullbk_118_1_758985958
[oracle@rac2 rmanbak]$ ls
arch_122_1_758986043
库里查看相关备份信息如下：
select bs_key,bp_key,handle,to_char(start_time,'yyyy-mm-dd hh24:mi:ss') from v$backup_piece_details order by 1,2;
BS_KEY BP_KEY HANDLE TO_CHAR(START_TIME,
---------- ---------- ---------------------------------------------- -------------------
1 113 113 /home/oracle/rmanbak/fullbk_117_1_758985958 2011-08-12 13:25:58
2 114 114 /home/oracle/rmanbak/fullbk_118_1_758985958 2011-08-12 13:26:13
3 115 115 /home/oracle/rmanbak/fullbk_119_1_758986006 2011-08-12 13:26:46
4 117 117 /home/oracle/rmanbak/arch_121_1_758986045 2011-08-12 13:27:26
5 118 118 /home/oracle/rmanbak/arch_122_1_758986043 2011-08-12 13:27:25
6 119 119 /home/oracle/rmanbak/arch_123_1_758986047 2011-08-12 13:27:27
7 120 120 /home/oracle/rmanbak/c-921635118-20110812-02 2011-08-12 14:42:15
因为在第一个节点执行恢复操作，所以要用到第二个节点上的归档的备份(arch_122_1_758986043)和第二个节点的归档日志
使用scp命令拷贝到第一个节点
[oracle@rac2 ~]$ scp archive/2_4_758985143.dbf rac1:/home/oracle/archive/
[oracle@rac2 ~]$ scp rmanbak/arch_122_1_758986043 rac1:/home/oracle/rmanbak/
每个节点都启动到nomount状态
SQL> startup nomount
ORACLE instance started.
Total System Global Area 218103808 bytes
Fixed Size 1218580 bytes
Variable Size 83888108 bytes
Database Buffers 125829120 bytes
Redo Buffers 7168000 bytes
执行恢复：
如果连控制文件一起恢复那在rman里执行如下命令restore controlfile from '/home/oracle/rmanbak/c-921635118-20110812-02';
[oracle@rac1 ~]$ rman target /
Recovery Manager: Release 10.2.0.1.0 - Production on Fri Aug 12 14:33:47 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: SYK (DBID=921635118, not open)
RMAN> restore database;
Starting restore at 12-AUG-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=307 instance=syk1 devtype=DISK
skipping datafile 1; already restored to file +ASM_DATA/syk/datafile/system.256.729209147
skipping datafile 4; already restored to file +ASM_DATA/syk/datafile/users.259.729209149
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00003 to +ASM_DATA/syk/datafile/sysaux.257.729209149
channel ORA_DISK_1: reading from backup piece /home/oracle/rmanbak/fullbk_118_1_758985958
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/rmanbak/fullbk_118_1_758985958 tag=HOT_DB_BK_LEVEL0
channel ORA_DISK_1: restore complete, elapsed time: 00:00:15
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00002 to +ASM_DATA/syk/datafile/undotbs1.258.729209149
restoring datafile 00005 to +ASM_DATA/syk/datafile/undotbs2.264.729209281
channel ORA_DISK_1: reading from backup piece /home/oracle/rmanbak/fullbk_119_1_758986006
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/rmanbak/fullbk_119_1_758986006 tag=HOT_DB_BK_LEVEL0
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
Finished restore at 12-AUG-11
RMAN> recover database;
Starting recover at 12-AUG-11
using channel ORA_DISK_1
starting media recovery
archive log thread 1 sequence 4 is already on disk as file +ASM_RECOVER/syk/onlinelog/group_1.257.729209205
archive log thread 1 sequence 5 is already on disk as file +ASM_DATA/syk/onlinelog/group_2.262.729209207
archive log thread 2 sequence 4 is already on disk as file +ASM_DATA/syk/onlinelog/group_4.266.729209319
archive log thread 2 sequence 5 is already on disk as file +ASM_RECOVER/syk/onlinelog/group_3.259.729209317
channel ORA_DISK_1: starting archive log restore to default destination
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=2
channel ORA_DISK_1: reading from backup piece /home/oracle/rmanbak/arch_121_1_758986045
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/rmanbak/arch_121_1_758986045 tag=TAG20110812T132723
channel ORA_DISK_1: restore complete, elapsed time: 00:00:02
archive log filename=/home/oracle/archive/1_2_758985143.dbf thread=1 sequence=2
channel ORA_DISK_1: starting archive log restore to default destination
channel ORA_DISK_1: restoring archive log
archive log thread=2 sequence=2
channel ORA_DISK_1: restoring archive log
archive log thread=2 sequence=3
channel ORA_DISK_1: reading from backup piece /home/oracle/rmanbak/arch_122_1_758986043
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/rmanbak/arch_122_1_758986043 tag=TAG20110812T132723
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
archive log filename=/home/oracle/archive/2_2_758985143.dbf thread=2 sequence=2
channel ORA_DISK_1: starting archive log restore to default destination
channel ORA_DISK_1: restoring archive log
archive log thread=1 sequence=3
channel ORA_DISK_1: reading from backup piece /home/oracle/rmanbak/arch_123_1_758986047
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/rmanbak/arch_123_1_758986047 tag=TAG20110812T132723
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
archive log filename=/home/oracle/archive/1_3_758985143.dbf thread=1 sequence=3
archive log filename=/home/oracle/archive/2_3_758985143.dbf thread=2 sequence=3
archive log filename=+ASM_DATA/syk/onlinelog/group_4.266.729209319 thread=2 sequence=4
archive log filename=+ASM_RECOVER/syk/onlinelog/group_1.257.729209205 thread=1 sequence=4
archive log filename=+ASM_DATA/syk/onlinelog/group_2.262.729209207 thread=1 sequence=5
archive log filename=+ASM_RECOVER/syk/onlinelog/group_3.259.729209317 thread=2 sequence=5
media recovery complete, elapsed time: 00:00:14
Finished recover at 12-AUG-11
RMAN> alter database open resetlogs;
database opened
RMAN>
恢复完成。此次是完全恢复。