oracle中数据fs到asm迁移的示例分析-创新互联
小编给大家分享一下oracle中数据fs到asm迁移的示例分析，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
（RedHat 10g Oracle环境）
1、配置 Oracle Cluster Synchronization（CSS）
要想使用ASM，必须先配置并启动CSS
[root@redhat10g ~]# cd /u01/app/oracle/product/10.2.0/db_1/bin
[root@redhat10g bin]# ./localconfig add
2、配置Automatic Storage Management（ASM）实例参数
[oracle@aix201 ~]$vi /u01/app/oracle/product/10.2.0/db_1/dbs/init+ASM.ora
instance_type='asm'
asm_diskstring='/dev/mapper/asmvg-*'
asm_diskgroups='DG1','RCY1'
large_pool_size=12m
background_dump_dest=/u01/app/oracle/product/10.2.0/db_1/admin/+ASM/bdump
core_dump_dest=/u01/app/oracle/product/10.2.0/db_1/admin/+ASM/cdump
user_dump_dest=/u01/app/oracle/product/10.2.0/db_1/admin/+ASM/udump
3、启动asm实例
[oracle@redhat10g ~]$ export ORACLE_SID=+ASM
[oracle@redhat10g ~]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Sun Jun 29 17:04:44 2014
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup
ASM instance started
Total System Global Area 83886080 bytes
Fixed Size 1217836 bytes
Variable Size 57502420 bytes
ASM Cache 25165824 bytes
4、创建裸设备，修改用户和权限
1）添加磁盘；
2）为磁盘分区：
[root@redhat10g ~]# fdisk /dev/sdb
Device Boot Start End Blocks Id System
/dev/sdb1 1 2610 20964793+ 83 Linux
3）创建物理卷（pv）：
[root@redhat10g ~]# pvcreate /dev/sdb1
/dev/cdrom: open failed: Read-only file system
Attempt to close device '/dev/cdrom' which is not open.
Physical volume "/dev/sdb1" successfully created
查看pv的信息：
4）创建卷组：
[root@redhat10g ~]# vgcreate asmvg /dev/sdb1
5）创建逻辑卷lv：
[root@redhat10g ~]# lvcreate -n datalv1 -L 5gb asmvg
/dev/cdrom: open failed: Read-only file system
Logical volume "datalv1" created
[root@redhat10g ~]# lvcreate -n datalv2 -L 5gb asmvg
/dev/cdrom: open failed: Read-only file system
Logical volume "datalv2" created
[root@redhat10g ~]# lvcreate -n ocrdisklv1 -L 4.5gb asmvg
/dev/cdrom: open failed: Read-only file system
Logical volume "ocrdisklv1" created
[root@redhat10g ~]# lvcreate -n ocrdisklv2 -L 4.5gb asmvg
/dev/cdrom: open failed: Read-only file system
Logical volume "ocrdisklv2" created
6）绑定裸设备：
[root@redhat10g ~]# raw /dev/raw/raw1 /dev/mapper/asmvg-datalv1
/dev/raw/raw1: bound to major 253, minor 2
[root@redhat10g ~]# raw /dev/raw/raw2 /dev/mapper/asmvg-datalv2
/dev/raw/raw2: bound to major 253, minor 3
[root@redhat10g ~]# raw /dev/raw/raw3 /dev/mapper/asmvg-
asmvg-datalv1 asmvg-datalv2 asmvg-ocrdisklv1 asmvg-ocrdisklv2
[root@redhat10g ~]# raw /dev/raw/raw3 /dev/mapper/asmvg-ocrdisklv1
/dev/raw/raw3: bound to major 253, minor 4
[root@redhat10g ~]# raw /dev/raw/raw4 /dev/mapper/asmvg-ocrdisklv2
/dev/raw/raw4: bound to major 253, minor 5
服务器启动自动挂载裸设备：
[root@redhat10g ~]# vi /etc/sysconfig/rawdevices
/dev/raw/raw1 /dev/mapper/asmvg-datalv1
/dev/raw/raw2 /dev/mapper/asmvg-datalv2
/dev/raw/raw3 /dev/mapper/asmvg-ocrdisk1
/dev/raw/raw4 /dev/mapper/asmvg-ocrdisk2
重启服务验证能否挂载：
[root@redhat10g ~]# service rawdevices restart
Assigning devices:
/dev/raw/raw1 --> /dev/mapper/asmvg-datalv1
/dev/raw/raw1: bound to major 253, minor 2
/dev/raw/raw2 --> /dev/mapper/asmvg-datalv2
/dev/raw/raw2: bound to major 253, minor 3
/dev/raw/raw3 --> /dev/mapper/asmvg-ocrdisklv1
/dev/raw/raw3: bound to major 253, minor 4
/dev/raw/raw4 --> /dev/mapper/asmvg-ocrdisklv2
/dev/raw/raw4: bound to major 253, minor 5
7）修改设备属性：
[root@redhat10g raw]# chown -R oracle:oinstall /dev/raw/raw1
[root@redhat10g raw]# chown -R oracle:oinstall /dev/raw/raw2
[root@redhat10g raw]# chown -R oracle:oinstall /dev/raw/raw3
[root@redhat10g raw]# chown -R oracle:oinstall /dev/raw/raw4
[root@redhat10g ~]# chown -R oracle:oinstall /dev/mapper/asmvg-datalv1
[root@redhat10g ~]# chown -R oracle:oinstall /dev/mapper/asmvg-datalv2
[root@redhat10g ~]# chown -R oracle:oinstall /dev/mapper/asmvg-ocrdisklv1
[root@redhat10g ~]# chown -R oracle:oinstall /dev/mapper/asmvg-ocrdisklv2
5、创建ASM磁盘组
为了能使ASM启动时，自动挂载磁盘和磁盘组，将下边的参数添加到初始化文件中：
asm_diskstring='/dev/mapper/asmvg-*'
asm_diskgroups='DG1','RCY1'
6、修改参数：
SQL> alter system set db_create_file_dest='+dg1' scope=spfile;
System altered.
SQL> alter system set control_files='+dg1' scope=spfile;
System altered.
7、转储控制文件
RMAN> shutdown immediate;
using target database control file instead of recovery catalog
database closed
database dismounted
Oracle instance shut down
RMAN> startup nomount;
connected to target database (not started)
Oracle instance started
Total System Global Area 1258291200 bytes
Fixed Size 1219160 bytes
Variable Size 318768552 bytes
Database Buffers 922746880 bytes
Redo Buffers 15556608 bytes
RMAN> restore controlfile from '/u01/app/oracle/oradata/prod/control01.ctl';
Starting restore at 29-JUN-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
channel ORA_DISK_1: copied control file copy
output filename=+DG1/prod/controlfile/backup.256.851554395
Finished restore at 29-JUN-14
8、转储数据文件
RMAN> alter database mount;
database mounted
released channel: ORA_DISK_1
RMAN> backup as copy database format '+dg1';
Starting backup at 29-JUN-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
channel ORA_DISK_1: starting datafile copy
input datafile fno=00001 name=/u01/app/oracle/oradata/prod/system01.dbf
output filename=+DG1/prod/datafile/system.257.851554507 tag=TAG20140629T225507 recid=8 stamp=851554598
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:01:35
channel ORA_DISK_1: starting datafile copy
input datafile fno=00003 name=/u01/app/oracle/oradata/prod/sysaux01.dbf
output filename=+DG1/prod/datafile/sysaux.258.851554603 tag=TAG20140629T225507 recid=9 stamp=851554652
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:56
channel ORA_DISK_1: starting datafile copy
input datafile fno=00005 name=/u01/app/oracle/oradata/prod/example01.dbf
output filename=+DG1/prod/datafile/example.259.851554659 tag=TAG20140629T225507 recid=10 stamp=851554677
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting datafile copy
input datafile fno=00002 name=/u01/app/oracle/oradata/prod/undotbs01.dbf
output filename=+DG1/prod/datafile/undotbs1.260.851554683 tag=TAG20140629T225507 recid=11 stamp=851554689
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting datafile copy
input datafile fno=00004 name=/u01/app/oracle/oradata/prod/users01.dbf
output filename=+DG1/prod/datafile/users.261.851554691 tag=TAG20140629T225507 recid=12 stamp=851554691
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting datafile copy
copying current control file
output filename=+DG1/prod/controlfile/backup.262.851554693 tag=TAG20140629T225507 recid=13 stamp=851554696
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 29-JUN-14
channel ORA_DISK_1: finished piece 1 at 29-JUN-14
piece handle=+DG1/prod/backupset/2014_06_29/nnsnf0_tag20140629t225507_0.263.851554697 tag=TAG20140629T225507 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 29-JUN-14
RMAN> switch database to copy;
datafile 1 switched to datafile copy "+DG1/prod/datafile/system.257.851554507"
datafile 2 switched to datafile copy "+DG1/prod/datafile/undotbs1.260.851554683"
datafile 3 switched to datafile copy "+DG1/prod/datafile/sysaux.258.851554603"
datafile 4 switched to datafile copy "+DG1/prod/datafile/users.261.851554691"
datafile 5 switched to datafile copy "+DG1/prod/datafile/example.259.851554659"
9、恢复数据库
RMAN> recover database;
Starting recover at 29-JUN-14
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:00
Finished recover at 29-JUN-14
RMAN> alter database open;
database opened
10、迁移临时表空间
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
+DG1/prod/datafile/system.257.851554507
+DG1/prod/datafile/undotbs1.260.851554683
+DG1/prod/datafile/sysaux.258.851554603
+DG1/prod/datafile/users.261.851554691
+DG1/prod/datafile/example.259.851554659
SQL> select name from v$tempfile;
NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/prod/temp01.dbf
/u01/app/oracle/product/10.2.0/db_1/dbs/temp01.dbf
报错：
SQL> alter tablespace temp drop tempfile '/u01/app/oracle/product/10.2.0/db_1/dbs/temp01.dbf';
alter tablespace temp drop tempfile '/u01/app/oracle/product/10.2.0/db_1/dbs/temp01.dbf'
*
ERROR at line 1:
ORA-00600: internal error code, arguments: [drop tempfile-2], [3], [7], [], [],
[], [], []
11、迁移联机日志组：
SQL> alter database add logfile ('+dg1','+rcy1') size 10m;
Database altered.
SQL> alter database add logfile ('+dg1','+rcy1') size 10m;
Database altered.
SQL> alter database add logfile ('+dg1','+rcy1') size 10m;
Database altered.
SQL> select group#,member from v$logfile order by 1;
GROUP# MEMBER
---------- ------------------------------------------------------------
1 /u01/app/oracle/oradata/prod/redo01.log
2 /u01/app/oracle/oradata/prod/redo02.log
3 /u01/app/oracle/oradata/prod/redo03.log
4 +DG1/prod/onlinelog/group_4.265.851556583
4 +RCY1/prod/onlinelog/group_4.256.851556585
5 +DG1/prod/onlinelog/group_5.266.851556591
5 +RCY1/prod/onlinelog/group_5.257.851556595
6 +DG1/prod/onlinelog/group_6.267.851556599
6 +RCY1/prod/onlinelog/group_6.258.851556601
SQL> alter database drop logfile group 1;
Database altered.
SQL> alter database drop logfile group 2;
alter database drop logfile group 2
*
ERROR at line 1:
ORA-01623: log 2 is current log for instance prod (thread 1) - cannot drop
ORA-00312: online log 2 thread 1: '/u01/app/oracle/oradata/prod/redo02.log'
SQL> alter database drop logfile group 3;
Database altered.
由于第二组日志还没有归档所以现在无法删除，所以要切换日志，使日志组 2 变成非活动状态
SQL> alter system switch logfile;
SQL> select group#,members,status from v$log;
GROUP# MEMBERS STATUS
---------- ---------- ----------------
2 1 INACTIVE
4 2 CURRENT
5 2 INACTIVE
6 2 INACTIVE
SQL> alter database drop logfile group 2;
Database altered.
12、调整recover area参数
SQL> show parameter recover
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest string /u01/app/oracle/flash_recovery
_area
db_recovery_file_dest_size big integer 2G
recovery_parallelism integer 0
SQL> alter system set db_recovery_file_dest='+rcy1' scope=spfile;
System altered.
SQL> alter system set db_recovery_file_dest_size=2g scope=spfile;
System altered
以上是“oracle中数据fs到asm迁移的示例分析”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注创新互联行业资讯频道！
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