测试环境 11g上 ASM磁盘组的管理、迁移、总结 （dgbroker）
2015-12-23 21:51
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1 目的
当前磁盘组DATA 只有一块磁盘，目前数据库的所有数据保存在DATA磁盘组上，出于安全的需要，需要将数据库迁移到DATAN 磁盘组上。DATAN 磁盘使用两块磁盘 normal方式创建2 实施过程
2.1 创建DATAN磁盘组
SQL> selectGROUP_NUMBER,DISK_NUMBER,NAME,PATH from v$asm_disk;GROUP_NUMBERDISK_NUMBER NAME PATH
----------------------- ---------------------------------------------------------------------------
0 0 ORCL:DATA2
0 1 ORCL:DATA3
1 0 CRS1 ORCL:CRS1
1 1 CRS2 ORCL:CRS2
1 2 CRS3 ORCL:CRS3
1 3 CRS4 ORCL:CRS4
2 0 DATA1 ORCL:DATA1
3 0 FRA ORCL:FRA
8 rows selected.
---group_number=0的是指没有添加到磁盘组中。
此处 使用ORCL:DATA2、ORCL:DATA3 创建DATAN磁盘组。
确认一下磁盘的大小
[root@node1 ~]#/etc/init.d/oracleasm querydisk -d DATA2
Disk"DATA2" is a valid ASM disk on device [8,97]
[root@node1 ~]#/etc/init.d/oracleasm querydisk -d DATA3
Disk"DATA3" is a valid ASM disk on device [8,113]
[root@node1 ~]#lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 40G 0 disk
├─sda1 8:1 0 200M 0 part /boot
├─sda2 8:2 0 1G 0 part [SWAP]
└─sda3 8:3 0 38.8G 0 part /
sdb 8:16 0 1G 0 disk
└─sdb1 8:17 0 1023.8M 0 part
sdc 8:32 0 1G 0 disk
└─sdc1 8:33 0 1023.8M 0 part
sdd 8:48 0 1G 0 disk
└─sdd1 8:49 0 1023.8M 0 part
sde 8:64 0 1G 0 disk
└─sde1 8:65 0 1023.8M 0 part
sdf 8:80 0 10G 0 disk
└─sdf1 8:81 0 10G 0 part
sdg 8:96 0 10G 0 disk
└─sdg1 8:97 0 10G 0 part
sdh 8:112 0 10G 0 disk
└─sdh1 8:113 0 10G 0 part
sdi 8:128 0 8.9G 0 disk
└─sdi1 8:129 0 8.9G 0 part
sr0 11:0 1 3.6G 0 rom
确认俩块盘的大小是一致的。
创建DATAN磁盘组
create diskgroup DATAN normal redundancydisk 'ORCL:DATA2','ORCL:DATA3';
查看asm磁盘组平衡速度
select * from v$asm_operation;
2.2 检查磁盘组
selectstate,name,type from v$asm_diskgroup;SQL> selectstate,name,type from v$asm_diskgroup;
STATE NAME TYPE
---------------------------------------------------------------------------------- ------------
MOUNTED CRS EXTERN
MOUNTED DATA EXTERN
MOUNTED FRA EXTERN
MOUNTED DATAN NORMAL
2.3 使用rman copy 功能将数据库copy到DATAN磁盘组
2.3.1 控制文件
SQL> show parameter db_nameNAME TYPE VALUE
----------------------------------------------- ------------------------------
db_name string racdb
SQL> showparameter control
NAME TYPE VALUE
----------------------------------------------- ------------------------------
control_file_record_keep_time integer 7
control_files string +DATA/racdb/controlfile/curren
t.260.897739683, +FRA/racdb/co
ntrolfile/current.256.89773968
3
control_management_pack_access string DIAGNOSTIC+TUNING
alter system setcontrol_files='+FRA/racdb/controlfile/current.256.897739683','+DATAN'scope=spfile;
SQL> altersystem setcontrol_files='+FRA/racdb/controlfile/current.256.897739683','+DATAN'scope=spfile;
System altered.
停止实例
SQL> shutdown immediate;
启动到nomount状态
startup nomount;
如果是在另一个节点上操作，需要mount DATAN磁盘组
srvctl start diskgroup -g DATAN
恢复控制文件
restore controlfilefrom '+FRA/racdb/controlfile/current.256.897739683';
RMAN> restorecontrolfile from '+FRA/racdb/controlfile/current.256.897739683';
Starting restore at23-DEC-15
using channelORA_DISK_1
channel ORA_DISK_1:copied control file copy
output filename=+FRA/racdb/controlfile/current.256.897739683
output filename=+DATAN/racdb/controlfile/current.256.899218687
Finished restore at23-DEC-15
SQL> alterdatabase mount;
Database altered.
SQL> alterdatabase open;
Database altered.
SQL> showparameter control;
NAME TYPE VALUE
----------------------------------------------- ------------------------------
control_file_record_keep_time integer 7
control_files string +FRA/racdb/controlfile/current
.256.897739683, +DATAN/racdb/c
ontrolfile/current.256.8992186
87
control_management_pack_access string DIAGNOSTIC+TUNING
2.3.2 数据文件
数据库启动到mount状态shutdown immediate
startup mount;
rman下copy
数据库文件到DATAN磁盘组
backup as copy databaseformat '+DATAN';
RMAN> backup ascopy database format '+DATAN';
Starting backup at23-DEC-15
using targetdatabase control file instead of recovery catalog
allocated channel:ORA_DISK_1
channel ORA_DISK_1:SID=146 instance=racdb2 device type=DISK
channel ORA_DISK_1:starting datafile copy
input datafile filenumber=00001 name=+DATA/racdb/datafile/system.256.897739615
output filename=+DATAN/racdb/datafile/system.257.899219105 tag=TAG20151223T150504 RECID=2STAMP=899219155
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:55
channel ORA_DISK_1:starting datafile copy
input datafile filenumber=00002 name=+DATA/racdb/datafile/sysaux.257.897739615
output filename=+DATAN/racdb/datafile/sysaux.258.899219159 tag=TAG20151223T150504 RECID=3STAMP=899219197
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:45
channel ORA_DISK_1:starting datafile copy
input datafile filenumber=00003 name=+DATA/racdb/datafile/undotbs1.258.897739615
output filename=+DATAN/racdb/datafile/undotbs1.259.899219205 tag=TAG20151223T150504RECID=4 STAMP=899219210
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1:starting datafile copy
input datafile filenumber=00005 name=+DATA/racdb/datafile/undotbs2.264.897739761
output filename=+DATAN/racdb/datafile/undotbs2.260.899219213 tag=TAG20151223T150504RECID=5 STAMP=899219213
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1:starting datafile copy
copying currentcontrol file
output filename=+DATAN/racdb/controlfile/backup.261.899219217 tag=TAG20151223T150504RECID=6 STAMP=899219217
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1:starting datafile copy
input datafile filenumber=00006 name=+DATA/racdb/datafile/a1.277.898792043
output filename=+DATAN/racdb/datafile/a1.262.899219219 tag=TAG20151223T150504 RECID=7STAMP=899219220
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:01
channel ORA_DISK_1:starting datafile copy
input datafile filenumber=00007 name=+DATA/racdb/datafile/a2.276.898792043
output filename=+DATAN/racdb/datafile/a2.263.899219221 tag=TAG20151223T150504 RECID=8STAMP=899219221
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:01
channel ORA_DISK_1:starting datafile copy
input datafile filenumber=00004 name=+DATA/racdb/datafile/users.259.897739615
output filename=+DATAN/racdb/datafile/users.264.899219223 tag=TAG20151223T150504 RECID=9STAMP=899219222
channel ORA_DISK_1:datafile copy complete, elapsed time: 00:00:01
channel ORA_DISK_1:starting full datafile backup set
channel ORA_DISK_1:specifying datafile(s) in backup set
including currentSPFILE in backup set
channel ORA_DISK_1:starting piece 1 at 23-DEC-15
channel ORA_DISK_1:finished piece 1 at 23-DEC-15
piecehandle=+DATAN/racdb/backupset/2015_12_23/nnsnf0_tag20151223t150504_0.265.899219223tag=TAG20151223T150504 comment=NONE
channel ORA_DISK_1:backup set complete, elapsed time: 00:00:01
Finished backup at23-DEC-15
list copy ofdatabase;
RMAN> list copyof database;
List of DatafileCopies
=======================
Key File S Completion Time Ckp SCN Ckp Time
------- ---- ---------------- ---------- ---------------
2 1 A 23-DEC-15 1625125 23-DEC-15
Name:+DATAN/racdb/datafile/system.257.899219105
Tag: TAG20151223T150504
3 2 A 23-DEC-15 1625125 23-DEC-15
Name:+DATAN/racdb/datafile/sysaux.258.899219159
Tag: TAG20151223T150504
4 3 A 23-DEC-15 1625125 23-DEC-15
Name:+DATAN/racdb/datafile/undotbs1.259.899219205
Tag: TAG20151223T150504
9 4 A 23-DEC-15 1625125 23-DEC-15
Name:+DATAN/racdb/datafile/users.264.899219223
Tag: TAG20151223T150504
5 5 A 23-DEC-15 1625125 23-DEC-15
Name:+DATAN/racdb/datafile/undotbs2.260.899219213
Tag: TAG20151223T150504
7 6 A 23-DEC-15 1625125 23-DEC-15
Name:+DATAN/racdb/datafile/a1.262.899219219
Tag: TAG20151223T150504
8 7 A 23-DEC-15 1625125 23-DEC-15
Name:+DATAN/racdb/datafile/a2.263.899219221
Tag: TAG20151223T150504
切换到DATAN磁盘
RMAN> switchdatabase to copy;
datafile 1 switchedto datafile copy "+DATAN/racdb/datafile/system.257.899219105"
datafile 2 switchedto datafile copy "+DATAN/racdb/datafile/sysaux.258.899219159"
datafile 3 switchedto datafile copy "+DATAN/racdb/datafile/undotbs1.259.899219205"
datafile 4 switchedto datafile copy "+DATAN/racdb/datafile/users.264.899219223"
datafile 5 switchedto datafile copy "+DATAN/racdb/datafile/undotbs2.260.899219213"
datafile 6 switchedto datafile copy "+DATAN/racdb/datafile/a1.262.899219219"
datafile 7 switchedto datafile copy "+DATAN/racdb/datafile/a2.263.899219221"
查询：
SQL> select namefrom v$datafile;
NAME
--------------------------------------------------------------------------------
+DATAN/racdb/datafile/system.257.899219105
+DATAN/racdb/datafile/sysaux.258.899219159
+DATAN/racdb/datafile/undotbs1.259.899219205
+DATAN/racdb/datafile/users.264.899219223
+DATAN/racdb/datafile/undotbs2.260.899219213
+DATAN/racdb/datafile/a1.262.899219219
+DATAN/racdb/datafile/a2.263.899219221
启动数据库
SQL> alterdatabase open;
Database altered.
修改数据库新建文件的目标磁盘组
SQL> altersystem set db_create_file_dest='+DATAN';
2.3.3 TEMP表空间
create temporarytablespace temp01 tempfile size 2M;SQL> createtemporary tablespace temp01 tempfile size 2M;
Tablespace created.
SQL> select namefrom v$tempfile;
NAME
--------------------------------------------------------------------------------
+DATA/racdb/tempfile/temp.263.897739695
+DATAN/racdb/tempfile/temp01.266.899219909
修改默认的临时temp表空间
SQL> alterdatabase default temporary tablespace temp01;
Database altered.
删除原temp表空间
SQL> drop tablespace temp;
Tablespace dropped.
SQL> select namefrom v$tempfile;
NAME
--------------------------------------------------------------------------------
+DATAN/racdb/tempfile/temp01.266.899219909
2.3.4 redo日志迁移
SQL>GROUP# STATUS
--------------------------
1 INACTIVE
2 CURRENT
3 CURRENT
4 INACTIVE
select GROUP# , TYPE,MEMBER from v$logfile
SQL> /
GROUP# TYPE MEMBER
---------- ----------------------------------------------------
2 ONLINE +DATA/racdb/onlinelog/group_2.262.897739689
2 ONLINE +FRA/racdb/onlinelog/group_2.258.897739691
1 ONLINE +DATA/racdb/onlinelog/group_1.261.897739685
1 ONLINE +FRA/racdb/onlinelog/group_1.257.897739687
3 ONLINE +DATA/racdb/onlinelog/group_3.265.897739865
3 ONLINE +FRA/racdb/onlinelog/group_3.259.897739867
4 ONLINE +DATA/racdb/onlinelog/group_4.266.897739869
4 ONLINE +FRA/racdb/onlinelog/group_4.260.897739871
5 STANDBY+DATA/racdb/onlinelog/group_5.268.897754143
5 STANDBY+FRA/racdb/onlinelog/group_5.279.897754145
6 STANDBY+DATA/racdb/onlinelog/group_6.269.897754145
6 STANDBY+FRA/racdb/onlinelog/group_6.280.897754147
7 STANDBY+DATA/racdb/onlinelog/group_7.270.897754149
7 STANDBY+FRA/racdb/onlinelog/group_7.281.897754151
8 STANDBY+DATA/racdb/onlinelog/group_8.271.897754151
8 STANDBY+FRA/racdb/onlinelog/group_8.282.897754153
9 STANDBY+DATA/racdb/onlinelog/group_9.272.897754155
9 STANDBY+FRA/racdb/onlinelog/group_9.283.897754157
10 STANDBY+DATA/racdb/onlinelog/group_10.273.897754157
10 STANDBY+FRA/racdb/onlinelog/group_10.284.897754159
alter database addlogfile member '+DATAN' to group 1;
alter database addlogfile member '+DATAN' to group 2;
alter database addlogfile member '+DATAN' to group 3;
alter database addlogfile member '+DATAN' to group 4;
alter database addstandby logfile member '+DATAN' to group 5;
alter database addstandby logfile member '+DATAN' to group 6;
alter database addstandby logfile member '+DATAN' to group 7;
alter database addstandby logfile member '+DATAN' to group 8;
alter database addstandby logfile member '+DATAN' to group 9;
alter database addstandby logfile member '+DATAN' to group 10;
删除DATA磁盘组上的日志文件
SQL> select GROUP# , TYPE,MEMBER from v$logfile;
GROUP# TYPE MEMBER
---------- ----------------------------------------------------
2 ONLINE +DATA/racdb/onlinelog/group_2.262.897739689
2 ONLINE +FRA/racdb/onlinelog/group_2.258.897739691
1 ONLINE +DATA/racdb/onlinelog/group_1.261.897739685
1 ONLINE +FRA/racdb/onlinelog/group_1.257.897739687
1 ONLINE +DATAN/racdb/onlinelog/group_1.267.899222833
3 ONLINE +DATA/racdb/onlinelog/group_3.265.897739865
3 ONLINE +FRA/racdb/onlinelog/group_3.259.897739867
4 ONLINE +DATA/racdb/onlinelog/group_4.266.897739869
4 ONLINE +FRA/racdb/onlinelog/group_4.260.897739871
5 STANDBY+DATA/racdb/onlinelog/group_5.268.897754143
5 STANDBY+FRA/racdb/onlinelog/group_5.279.897754145
6 STANDBY+DATA/racdb/onlinelog/group_6.269.897754145
6 STANDBY+FRA/racdb/onlinelog/group_6.280.897754147
7 STANDBY+DATA/racdb/onlinelog/group_7.270.897754149
7 STANDBY+FRA/racdb/onlinelog/group_7.281.897754151
8 STANDBY+DATA/racdb/onlinelog/group_8.271.897754151
8 STANDBY+FRA/racdb/onlinelog/group_8.282.897754153
9 STANDBY+DATA/racdb/onlinelog/group_9.272.897754155
9 STANDBY+FRA/racdb/onlinelog/group_9.283.897754157
10 STANDBY+DATA/racdb/onlinelog/group_10.273.897754157
10 STANDBY+FRA/racdb/onlinelog/group_10.284.897754159
2 ONLINE +DATAN/racdb/onlinelog/group_2.268.899222835
3 ONLINE +DATAN/racdb/onlinelog/group_3.269.899222837
4 ONLINE +DATAN/racdb/onlinelog/group_4.270.899222839
5 STANDBY+DATAN/racdb/onlinelog/group_5.271.899222851
6 STANDBY+DATAN/racdb/onlinelog/group_6.272.899222853
7 STANDBY+DATAN/racdb/onlinelog/group_7.273.899222855
8 STANDBY+DATAN/racdb/onlinelog/group_8.274.899222857
9 STANDBY+DATAN/racdb/onlinelog/group_9.275.899222859
10 STANDBY+DATAN/racdb/onlinelog/group_10.276.899222861
执行删除：
执行以下命令过程中，需要多次进行日志的切换
alter system switchlogfile;
alter database droplogfile member '+DATA/racdb/onlinelog/group_2.262.897739689';
alter database droplogfile member '+DATA/racdb/onlinelog/group_1.261.897739685';
alter database droplogfile member '+DATA/racdb/onlinelog/group_3.265.897739865';
alter database droplogfile member '+DATA/racdb/onlinelog/group_4.266.897739869';
alter database dropstandby logfile member '+DATA/racdb/onlinelog/group_6.269.897754145';
alter database dropstandby logfile member '+DATA/racdb/onlinelog/group_7.270.897754149';
alter database dropstandby logfile member '+DATA/racdb/onlinelog/group_8.271.897754151';
alter database dropstandby logfile member '+DATA/racdb/onlinelog/group_5.268.897754143';
alter database dropstandby logfile member '+DATA/racdb/onlinelog/group_9.272.897754155';
alter database dropstandby logfile member '+DATA/racdb/onlinelog/group_10.273.897754157';
SQL> select GROUP# , TYPE,MEMBER from v$logfile;
GROUP# TYPE MEMBER
---------- ----------------------------------------------------
2 ONLINE +FRA/racdb/onlinelog/group_2.258.897739691
1 ONLINE +FRA/racdb/onlinelog/group_1.257.897739687
1 ONLINE +DATAN/racdb/onlinelog/group_1.267.899222833
3 ONLINE +FRA/racdb/onlinelog/group_3.259.897739867
4 ONLINE +FRA/racdb/onlinelog/group_4.260.897739871
5 STANDBY+FRA/racdb/onlinelog/group_5.279.897754145
6 STANDBY+FRA/racdb/onlinelog/group_6.280.897754147
7 STANDBY+FRA/racdb/onlinelog/group_7.281.897754151
8 STANDBY+FRA/racdb/onlinelog/group_8.282.897754153
9 STANDBY+FRA/racdb/onlinelog/group_9.283.897754157
10 STANDBY+FRA/racdb/onlinelog/group_10.284.897754159
2 ONLINE +DATAN/racdb/onlinelog/group_2.268.899222835
3 ONLINE +DATAN/racdb/onlinelog/group_3.269.899222837
4 ONLINE +DATAN/racdb/onlinelog/group_4.270.899222839
5 STANDBY+DATAN/racdb/onlinelog/group_5.271.899222851
6 STANDBY+DATAN/racdb/onlinelog/group_6.272.899222853
7 STANDBY +DATAN/racdb/onlinelog/group_7.273.899222855
8 STANDBY+DATAN/racdb/onlinelog/group_8.274.899222857
9 STANDBY+DATAN/racdb/onlinelog/group_9.275.899222859
10 STANDBY+DATAN/racdb/onlinelog/group_10.276.899222861
20 rows selected.
2.3.5 spfile文件
shutdown immediate;startup nomount;
createspfile='+DATAN/racdb/spfileracdb.ora' from pfile='/home/oracle/new.ora';
SQL> createspfile='+DATAN/racdb/spfileracdb.ora' from pfile='/home/oracle/new.ora';
File created.
shutdown immediate;
修改pfile中的指向：
[oracle@node1 dbs]$cat initracdb1.ora
SPFILE='+DATAN/racdb/spfileracdb.ora'
[oracle@node1 dbs]$pwd
/u01/app/oracle/product/11.2.4/db_1/dbs
[oracle@node2 dbs]$cat initracdb2.ora
SPFILE='+DATAN/racdb/spfileracdb.ora'
启动数据库
SQL> startup;
ORACLE instancestarted.
Total System GlobalArea 722366464 bytes
Fixed Size 2256752 bytes
Variable Size 583008400 bytes
DatabaseBuffers 130023424 bytes
Redo Buffers 7077888 bytes
Database mounted.
Database opened.
SQL> showparameter spfile
NAME TYPE VALUE
----------------------------------------------- ------------------------------
spfile string +DATAN/racdb/spfileracdb.ora
SQL>
ASM磁盘组的pfile文件
SQL> showparameter pfile
NAME TYPE
----------------------------------------------------------
VALUE
------------------------------
spfile string
+CRS/cluster/asmparameterfile/
registry.253.897729631
不需要修改
2.4 调整 dgbroker
2.4.1 修改dgbroker文件的位置
SQL> showparameter dg_brokerdg_broker_config_file1 string +DATA/dr1racdb.dat
dg_broker_config_file2 string +DATA/dr2racdb.dat
dg_broker_start boolean TRUE
alter system setdg_broker_start=false;
ASMCMD>cp dr1racdb.dat +datan/
copying+data/dr1racdb.dat -> +datan/dr1racdb.dat
ASMCMD>cp dr2racdb.dat +datan/
copying+data/dr2racdb.dat -> +datan/dr2racdb.dat
alter system setdg_broker_config_file1='+DATAN/dr1racdb.dat' scope=both sid='*';
alter system setdg_broker_config_file2='+DATAN/dr2racdb.dat' scope=both sid='*';
SQL>alter system set dg_broker_config_file1='+DATAN/dr1racdb.dat' scope=bothsid='*';
Systemaltered.
SQL>alter system set dg_broker_config_file1='+DATAN/dr2racdb.dat' scope=bothsid='*';
Systemaltered.
SQL>alter system set dg_broker_start=true;
Systemaltered.
SQL> altersystem switch logfile;
System altered.
SQL> /
/
/
System altered.
SQL>
System altered.
SQL>
System altered.
2.4.2 删除原目录下的配置文件
ASMCDM> cd +DATAASMCMD> rmdr1racdb.dat
ASMCMD> rmdr2racdb.dat
2.4.3 查看dgbroker的配置
DGMGRL> connectsys/Oracle123Connected.
DGMGRL> showconfiguration;
Configuration -racdb
Protection Mode: MaxPerformance
Databases:
racdb - Primary database
racdg - Physical standby database
Fast-StartFailover: DISABLED
ConfigurationStatus:
SUCCESS
2.4.4 dataguard进行切换测试
重启主库[oracle@node1 ~]$srvctl stop database -d racdb
[oracle@node1 ~]$srvctl start database -d racdb
SQL> showparameter dg_
NAME TYPE VALUE
----------------------------------------------- ------------------------------
cell_offloadgroup_name string
dg_broker_config_file1 string +DATAN/dr1racdb.dat
dg_broker_config_file2 string +DATAN/dr2racdb.dat
dg_broker_start boolean TRUE
dgbroker switchover
[root@node1 ~]# su- oracle
[oracle@node1 ~]$dgmgrl
DGMGRL for Linux:Version 11.2.0.4.0 - 64bit Production
Copyright (c) 2000,2009, Oracle. All rights reserved.
Welcome to DGMGRL,type "help" for information.
DGMGRL> connectsys/Oracle123
Connected.
DGMGRL> showconfiguration;
Configuration -racdb
Protection Mode: MaxPerformance
Databases:
racdb - Primary database
racdg - Physical standby database
Fast-StartFailover: DISABLED
ConfigurationStatus:
SUCCESS
DGMGRL> connectsys/Oracle123
Connected.
DGMGRL> showconfiguration;
Configuration -racdb
Protection Mode: MaxPerformance
Databases:
racdg - Primary database
racdb - Physical standby database
Fast-StartFailover: DISABLED
Configuration Status:
SUCCESS
2.4.5 创建表空间测试
当前的主库（原来的备库）SQL> createtablespace t3 datafile '+DATA' size 10M;
Tablespace created.
SQL> select namefrom v$datafile;
NAME
--------------------------------------------------------------------------------
+DATA/racdg/datafile/system.258.897754243
+DATA/racdg/datafile/sysaux.259.897754243
+DATA/racdg/datafile/undotbs1.260.897754279
+DATA/racdg/datafile/users.262.897754281
+DATA/racdg/datafile/undotbs2.261.897754279
+DATA/racdg/datafile/a1.289.899223995
+DATA/racdg/datafile/a2.288.899223997
+DATA/racdg/datafile/t3.287.899225917
当前的备库（原来的主库）：
SQL> select namefrom v$datafile;
NAME
--------------------------------------------------------------------------------
+DATAN/racdb/datafile/system.257.899219105
+DATAN/racdb/datafile/sysaux.258.899219159
+DATAN/racdb/datafile/undotbs1.259.899219205
+DATAN/racdb/datafile/users.264.899219223
+DATAN/racdb/datafile/undotbs2.260.899219213
+DATAN/racdb/datafile/a1.262.899219219
+DATAN/racdb/datafile/a2.263.899219221
+DATAN/racdb/datafile/t3.280.899225919
配置成功
2.5 检查
show parameterpfile;select name fromv$controlfile;
select name fromv$datafile;
select name fromv$tempfile;
select member fromv$logfile;
select filenamefrom v$block_change_tracking;
select name from v$flashback_database_logfile;
dgbroker> showconfiguration;
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