ORACLE RAC(11203)环境将误建立在本地目录的文件转移到ASM存储中

一、 概述

目前在各个行业业务中存在大量的Oracle RAC环境，尤其对于中小型企业及一些管理不规范的环境中，对数据库的操作也就显得杂乱无章了，它不是核心系统，但有问题也够运维人员喝一壶的。下面说一个常见的问题，就是在RAC环境中，往往会遇到本地数据文件，也就是只能在一个节点访问，出现这样的状况，主要有两个原因，命名不规范，造成Oracle自动创建到DBS目录下，再个对RAC系统不了解，按照之前方式创建。那么在出现这个问题时怎么解决呢，下面我们简单学习一下。

二、操作过程

本次操作对象为非系统表空间，环境rhel5.8_x64+Oracle RAC11g

1、 RAC为归档模式，不停库，通过Oracle11g asmcmd 中cp命令，操作。

首先模拟环境：

SQL> create tablespace ceshi datafile 'ceshi.dbf' size 10m;

Tablespace created.

SQL> select file_name from dba_data_files;

FILE_NAME

--------------------------------------------------

+OCR/prod/datafile/users.259.905592109

+OCR/prod/datafile/undotbs1.258.905592109

+OCR/prod/datafile/sysaux.257.905592107

+OCR/prod/datafile/system.256.905592107

+OCR/prod/datafile/undotbs2.264.905592463

+OCR/prod/datafile/lcl.dbf

/s01/oracle/app/oracle/product/11.2.0/dbhome_1/dbs/ceshi.dbf

7 rows selected.

节点1，查看数据文件状态、信息

SQL> set lines 150

SQL> col file_name for a55

SQL> select file_name,file_id,ONLINE_STATUS,tablespace_name from dba_data_files;

FILE_NAME FILE_ID ONLINE_ TABLESPACE_NAME

-------------------------------------------------- ---------- ------- ------------------------------

+OCR/prod/datafile/users.259.905592109 4 ONLINE USERS

+OCR/prod/datafile/undotbs1.258.905592109 3 ONLINE UNDOTBS1

+OCR/prod/datafile/sysaux.257.905592107 2 ONLINE SYSAUX

+OCR/prod/datafile/system.256.905592107 1 SYSTEM SYSTEM

+OCR/prod/datafile/undotbs2.264.905592463 5 ONLINE UNDOTBS2

+OCR/prod/datafile/lcl.dbf 6 ONLINE LCL

/s01/oracle/app/oracle/product/11.2.0/dbhome_1/dbs/ceshi.dbf 7 ONLINE CESHI

7 rows selected.

节点2，查看数据文件状态，信息

SQL> set lines 200

SQL> col file_name for a50

SQL> col tablespace_name for a10

SQL> select file_name,file_id,ONLINE_STATUS,tablespace_name from dba_data_files;

ERROR:

ORA-01157: cannot identify/lock data file 7 - see DBWR trace file

ORA-01110: data file 7: '/s01/oracle/app/oracle/product/11.2.0/dbhome_1/dbs/ceshi.dbf'

no rows selected

因为不是在共享存储上，所以节点2报错

将本地数据文件OFFLINE，或可以将整个表空间OFFLINE

SQL> alter database datafile 7 offline;

Database altered.

通过ASMCMD CP命令拷贝数据文件

ASMCMD> cp /s01/oracle/app/oracle/product/11.2.0/dbhome_1/dbs/ceshi.dbf +OCR/prod/datafile/ceshi.dbf

copying /s01/oracle/app/oracle/product/11.2.0/dbhome_1/dbs/ceshi.dbf -> +OCR/prod/datafile/ceshi.dbf

ASMCMD>

ASMCMD> ls -lrt

WARNING:option 'r' is deprecated for 'ls'

please use 'reverse'

Type Redund Striped Time Sys Name

DATAFILE HIGH COARSE MAR 04 09:00:00 Y SYSTEM.256.905592107

DATAFILE HIGH COARSE MAR 04 09:00:00 Y UNDOTBS1.258.905592109

DATAFILE HIGH COARSE MAR 04 09:00:00 Y UNDOTBS2.264.905592463

DATAFILE HIGH COARSE MAR 04 09:00:00 Y USERS.259.905592109

DATAFILE HIGH COARSE MAR 04 10:00:00 Y SYSAUX.257.905592107

N ceshi.dbf => +OCR/ASM/DATAFILE/ceshi.dbf.269.905597105

N lcl.dbf => +OCR/ASM/DATAFILE/lcl.dbf.268.905595941

rename数据文件，并查看信息

SQL> alter database rename file '/s01/oracle/app/oracle/product/11.2.0/dbhome_1/dbs/ceshi.dbf' to '+OCR/prod/datafile/ceshi.dbf';

Database altered.

SQL> set lines 200

SQL> col file_name for a50

SQL> select file_name,file_id,ONLINE_STATUS,tablespace_name from dba_data_files;

FILE_NAME FILE_ID ONLINE_ TABLESPACE_NAME

-------------------------------------------------- ---------- ------- ------------------------------

+OCR/prod/datafile/users.259.905592109 4 ONLINE USERS

+OCR/prod/datafile/undotbs1.258.905592109 3 ONLINE UNDOTBS1

+OCR/prod/datafile/sysaux.257.905592107 2 ONLINE SYSAUX

+OCR/prod/datafile/system.256.905592107 1 SYSTEM SYSTEM

+OCR/prod/datafile/undotbs2.264.905592463 5 ONLINE UNDOTBS2

+OCR/prod/datafile/lcl.dbf 6 ONLINE LCL

+OCR/prod/datafile/ceshi.dbf 7 RECOVER CESHI

7 rows selected.

我们可以看到，数据文件已移植到ASM中，但需要recover。

recover数据文件，再次将数据文件online

SQL> recover datafile 7;

Media recovery complete.

SQL> alter database datafile 7 online;

Database altered.

SQL> set lines 150

SQL> col file_name for a55

SQL> select file_name,file_id,ONLINE_STATUS,tablespace_name from dba_data_files;

FILE_NAME FILE_ID ONLINE_ TABLESPACE_NAME

-------------------------------------------------- ---------- ------- ------------------------------

+OCR/prod/datafile/users.259.905592109 4 ONLINE USERS

+OCR/prod/datafile/undotbs1.258.905592109 3 ONLINE UNDOTBS1

+OCR/prod/datafile/sysaux.257.905592107 2 ONLINE SYSAUX

+OCR/prod/datafile/system.256.905592107 1 SYSTEM SYSTEM

+OCR/prod/datafile/undotbs2.264.905592463 5 ONLINE UNDOTBS2

+OCR/prod/datafile/lcl.dbf 6 ONLINE LCL

+OCR/prod/datafile/ceshi.dbf 7 ONLINE CESHI

7 rows selected.

两个节点查看，都正常。