企业级RAC+DG架构部署

来源：互联网发布：unity3d安卓真机调试编辑：程序博客网时间：2024/06/08 07:01

概述

RAC全称是Real Application Clusters，中文译为“实时应用集群”，是ORACLE甲骨文公司提供的在低成本服务器上构建高可用性数据库系统的解决方案，部署自由，无需购买额外部件，就可以实现多节点的负载均衡和故障转移功能，满足7*24业务不间断的需求，而且，结合“Oracle数据卫士”（OracleData Guard），Oracle RAC所受到的保护就能抵御重大的场地故障、人为误操作、自然灾害等，真正实现负载均衡+异地容灾+灾难恢复。关于rac+dg的优点这里就不一一赘述了，下面进入实战部署环节。

一、DataGuard环境：

RAC + DataGuard有四种组合，这里我们选择RAC + Single standby 的模式。

RAC Primary Database 环境:

      服务器主机名            rac1                    rac2
公共IP地址（eth0） 192.168.56.101 192.168.56.102
虚拟IP地址（eth0） 192.168.56.201 192.168.56.202
私有IP地址（eth1） 10.10.10.101      10.10.10.102
ORACLE RAC SID         rac1                rac2
集群实例名称 rac-scan
SCAN IP 192.168.56.100

Standby Database 环境:

公共IP地址（eth0） 192.168.56.10

ORACLE_SID rac

二、RAC环境部署

以下操作均在两个节点配置！！！

1、网卡配置

[root@rac1 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0DEVICE=eth0HWADDR=00:0C:29:58:EA:A5TYPE=EthernetUUID=69c53a7f-749f-46e3-90e4-2f1e739a6c2fONBOOT=yesNM_CONTROLLED=noBOOTPROTO=noneIPADDR=192.168.56.101NETMASK=255.255.255.0GATEWAY=192.168.56.1

[root@rac1 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth1DEVICE=eth1ONBOOT=yesNM_CONTROLLED=noBOOTPROTO=noneIPADDR=10.10.10.101NETMASK=255.255.255.0GATEWAY=10.10.10.1

2、修改/etc/hosts文件

[root@rac1 ~]# vi /etc/hosts#public IP192.168.56.101   rac1192.168.56.102   rac2#virtual IP192.168.56.201   rac1-vip192.168.56.202   rac2-vip#private IP10.10.10.101     rac1-priv10.10.10.102     rac2-priv#SCAN IP192.168.56.100   rac-scan

3、配置yum源

[root@rac1 ~]# mv /etc/yum.repos.d/rhel-source.repo /etc/yum.repos.d/rhel-source.repo.bak[root@rac1 ~]# vi /etc/yum.repos.d/rhel-local.repo[local_repo]name=local_repobaseurl=file:///media/rhel_local/enabled=1gpgcheck=0

4、创建挂载目录

[root@rac1 ~]# mkdir /media/rhel_local/[root@rac1 ~]# mount /dev/sr0/ /media/rhel_local/[root@rac1 ~]# yum clean all[root@rac1 ~]# yum repolist

5、安装oracle必需的依赖包

[root@rac1 ~]# yum install -y binutils compat-libcap1 compat-libstdc++* gcc gcc-c++ glibc glibc-devel libgcc libstdc++ libstdc++-devel libaio libaio-devel sysstat make elfutils-libelf-devel[root@rac1 ~]# yum install -y xorg-x11-apps.x86_64                       [root@rac1 ~]# yum install -y xterm-253-1.el6.x86_64[root@rac1 ~]# rpm -ivh pdksh-5.2.14-37.el5_8.1.x86_64.rpm [root@rac1 rpm]# rpm -ivh cvuqdisk-1.0.9-1.rpm

注：1、xorg-x11-apps.x86_64和 xterm-253-1.el6.x86_64用于使用xstart远程弹出图像化界面；

2、pdksh-5.2.14-37.el5_8.1.x86_64.rpm也是oracle安装必需的安装包，但是在系统的ISO文件里边是没有的，需要自己到网上下载；不安装也是可以的，选择忽略即可。

3、cvuqdisk-1.0.9-1.rpm包是解压数据库安装包之后，位于database/rpm目录下，需要通过scp命令上传到节点2进行安装，命令如下：

[root@rac1 rpm]# scp cvuqdisk-1.0.9-1.rpm rac2:/tmp/

6、关闭防火墙

[root@rac1 ~]# chkconfig iptables off[root@rac1 ~]# service iptables stop[root@rac1 ~]# chkconfig iptables --listiptables        0:off   1:off   2:off   3:off   4:off   5:off   6:off

7、关闭NetworkManager

[root@rac1 ~]# chkconfig NetworkManager off[root@rac1 ~]# service NetworkManager stop  [root@rac1 ~]# chkconfig NetworkManager --listNetworkManager  0:off   1:off   2:off   3:off   4:off   5:off   6:off

8、禁用SELinux

[root@rac1 ~]# vim /etc/selinux/config SELINUX=disabled[root@rac1 ~]# sestatusSELinux status:                 disabled[root@rac1 ~]# getenforceDisabled

9、禁用时间同步

[root@rac1 rpm]# mv /etc/ntp.conf /etc/ntp.conf.bak

10、创建oracle和grid用户及其用户组

[root@rac1 ~]# groupadd -g 201 oinstall[root@rac1 ~]# groupadd -g 202 dba[root@rac1 ~]# useradd -m -u 203 -g oinstall -G dba -d /home/grid -s /bin/bash grid[root@rac1 ~]# useradd -m -u 202 -g oinstall -G dba -d /home/oracle -s /bin/bash oracle

11、验证用户并修改密码

[root@rac1 ~]# id oracle[root@rac1 ~]# id grid[root@rac1 ~]# id nobody修改密码：[root@rac1 ~]# passwd oracle[root@rac1 ~]# passwd grid

12、创建目录结构并授予权限

[root@rac1 ~]# mkdir -p /u01/grid/app/11.2.0[root@rac1 ~]# mkdir -p /u01/grid/app/grid[root@rac1 ~]# mkdir -p /u01/oracle/app/11.2.0[root@rac1 ~]# chown -R grid:oinstall /u01/grid[root@rac1 ~]# chown -R oracle:oinstall /u01/oracle

13、配置grid和oracle用户环境变量

[root@rac1 ~]# vi /home/grid/.bash_profileexport ORACLE_SID=+ASM1export ORACLE_BASE=/u01/grid/app/gridexport ORACLE_HOME=/u01/grid/app/11.2.0                     export PATH=$ORACLE_HOME/bin:$PATH:/usr/local/bin/:.export TEMP=/tmpexport TMP=/tmpexport TMPDIR=/tmpumask 022

[root@rac1 ~]# vi /home/oracle/.bash_profile export ORACLE_SID=rac1export ORACLE_BASE=/u01/oracle/appexport ORACLE_HOME=$ORACLE_BASE/11.2.0export ORACLE_UNQNAME=racexport PATH=$ORACLE_HOME/bin:$PATHumask 022

注：grid的home目录不能在base目录下

14、用户资源配置

[root@rac1 ~]# vi /etc/security/limits.confgrid soft nproc 2047grid hard nproc 16384grid soft nofile 1024grid hard nofile 65536oracle soft nproc 2047oracle hard nproc 16384oracle soft nofile 1024oracle hard nofile 65536

15、修改登录限制，添加以下行

[root@rac1 ~]# vi /etc/pam.d/loginsession    required     pam_limits.so

16、修改内核配置文件

[root@rac1 ~]# vi /etc/sysctl.conffs.aio-max-nr = 1048576fs.file-max = 6815744kernel.shmall = 4194304kernel.shmmax = 12884901887kernel.shmmni = 4096kernel.sem = 250 32000 100 128net.ipv4.ip_local_port_range = 9000 65500net.core.rmem_default = 262144net.core.rmem_max = 4194304net.core.wmem_default = 262144net.core.wmem_max = 1048586net.ipv4.tcp_wmem = 262144 262144 262144net.ipv4.tcp_rmem = 4194304 4194304 4194304使配置生效[root@rac1 ~]# sysctl -p

注：1、kernel.shmmax用于定义单个共享内存段的最大值，设置应该足够大，能够在一个共享内存段下容纳整个的SGA，这个值是可以通过公式来计算的，例如12G的物理内存设置值为：kernel.shmmax=12*1024*1024*1024-1=12884901887
2、kernel.shmall用于控制可以使用的共享内存的总页数，Linux共享内存页大小为4kb，而且一个共享内存段的最大大小是16GB，那么需要的内存页数是：kernel.shmall=16G/4kb=16*1024*1024*1024/(4*1024)=4194304

如果这个两个参数设置不合理，那么在安装的过程中就可能报错:SGA can not be greater than maximum shared memory segment size(0)或者ORA-27102:outof memory的错误。

17、禁用大页内存

[root@rac1 ~]# cat /sys/kernel/mm/transparent_hugepage/enabled[always] madvise never[root@rac1 ~]# grep AnonHugePages /proc/meminfoAnonHugePages:     34816 kB[root@rac1 ~]# vi /etc/grub.conftransparent_hugepage=never

18、配置磁盘udev规则

[root@rac1 rpm]# lsblk[root@rac1 rpm]# /sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sdb[root@rac1 rpm]# /sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sdc[root@rac1 rpm]# /sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sdd[root@rac1 rpm]# /sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sde[root@rac1 rpm]# /sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sdf[root@rac1 rpm]# /sbin/scsi_id --whitelisted --replace-whitespace --device=/dev/sdg[root@rac1 rpm]# vim /etc/udev/rules.d/99-oracle.rulesKERNEL=="sd*", BUS=="scsi", PROGRAM=="scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="36000c29752a07064d7f4bee3c21493f6", NAME="asm-data1", OWNER="grid", GROUP="dba", MODE="0660"KERNEL=="sd*", BUS=="scsi", PROGRAM=="scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="36000c29a44da3235cca533f6ed2b0b08", NAME="asm-data2", OWNER="grid", GROUP="dba", MODE="0660"KERNEL=="sd*", BUS=="scsi", PROGRAM=="scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="36000c2941f88cb68ebe1de205a2404ca", NAME="asm-ocr1", OWNER="grid", GROUP="dba", MODE="0660"KERNEL=="sd*", BUS=="scsi", PROGRAM=="scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="36000c29b2b10f5dd7045d3726f8b1df5", NAME="asm-ocr2", OWNER="grid", GROUP="dba", MODE="0660"KERNEL=="sd*", BUS=="scsi", PROGRAM=="scsi_id --whitelisted --replace-whitespace --device=/dev/$name", RESULT=="36000c29e13ab98faf53fa16329cadfec", NAME="asm-ocr3", OWNER="grid", GROUP="dba", MODE="0660"[root@rac1 ~]# start_udev[root@rac1 ~]# ls /dev/asm*/dev/asm-data1  /dev/asm-data2  /dev/asm-ocr1  /dev/asm-ocr2  /dev/asm-ocr3

注：1、如果是VMware Station虚拟机环境，获取不到磁盘UUID的话，则要在两个节点的.vmx文件中添加以下两个参数行后，重启

disk.locking="FALSE"

disk.EnableUUID = "TRUE"

2、如果是VirtualBox虚拟机环境，只要在虚拟介质管理把磁盘属性设置成共享即可。

19、使用secureCRT的sftp工具，上传安装包到服务器

sftp> cd /u01/soft/sftp> lcd E:\oracle11g        sftp> llsp13390677_112040_Linux-x86-64_1of7.zip      p13390677_112040_Linux-x86-64_2of7.zipp13390677_112040_Linux-x86-64_3of7.zipsftp> put *

20、解压安装包

[root@rac1 ~]# cd /u01/soft/[root@rac1 soft]# lsp13390677_112040_Linux-x86-64_1of7.zip  p13390677_112040_Linux-x86-64_2of7.zip  p13390677_112040_Linux-x86-64_3of7.zip[root@rac1 soft]# unzip p13390677_112040_Linux-x86-64_1of7.zip[root@rac1 soft]# unzip p13390677_112040_Linux-x86-64_2of7.zip[root@rac1 soft]# unzip p13390677_112040_Linux-x86-64_3of7.zip[root@rac1 soft]# lltotal 3664224drwxr-xr-x 7 root root       4096 Aug 27  2013 databasedrwxr-xr-x 7 root root       4096 Aug 27  2013 grid-rw-r--r-- 1 root root 1395582860 Oct 26  2015 p13390677_112040_Linux-x86-64_1of7.zip-rw-r--r-- 1 root root 1151304589 Oct 26  2015 p13390677_112040_Linux-x86-64_2of7.zip-rw-r--r-- 1 root root 1205251894 Mar 21 15:58 p13390677_112040_Linux-x86-64_3of7.zip

21、如果是vsphereclient的话，可以直接打开控制台，此时安装是最为方便的，但是如果需要远程安装的话，推荐使用xmanager的xstart工具，它能远程弹出图形化界面，就不必要到机房安装了。这里先安装集群软件。

[root@rac1 ~]# xclock                      [root@rac1 ~]# xhost +      access control disabled, clients can connect from any host                 [root@rac1 ~]# su - grid[grid@rac1 ~]$ export DISPLAY=192.168.56.1:0.0  [grid@rac1 ~]$ cd /u01/soft/grid                  [grid@rac1 grid]$ ./runInstaller

注：这里有个小技巧，如果我们按照以上方法还是弹不出安装界面的话，可以尝试直接使用grid用户登录，后边安装oracle库软件和dbca建库的时候也是如此。

22、由于篇幅有限，安装过程就不一一罗列了（需要的朋友可以留言，QQ或者邮箱单独发给您）。但是需要注意的是，过程中会提示我们使用root用户执行两个脚本命令，注意先后顺序、注意先节点一，再节点二。

[root@rac1 ~]# /u01/grid/app/oraInventory/orainstRoot.sh[root@rac1 ~]# /u01/grid/app/11.2.0/root.sh

23、同理，接下来安装oracle库软件（选择install database software only）

[root@rac1 ~]# su - oracle[oracle@rac1 ~]$ export DISPLAY=192.168.56.1:0.0                 [oracle@rac1 ~]$ cd /u01/soft/database                  [oracle@rac1 database]$ ./runInstaller                              [root@rac1 ~]# /u01/oracle/app/oraInventory/orainstRoot.sh[root@rac1 ~]# /u01/oracle/app/11.2.0/root.sh

24、接下来使用grid用户执行asmca创建磁盘组，使用oracle用户执行dbca命令安装数据库

25、检查已经安装成功

[grid@rac1 ~]$ crs_stat -tName           Type           Target    State     Host        ------------------------------------------------------------ora.DATA.dg    ora....up.type ONLINE    ONLINE    rac1        ora.DATA2.dg   ora....up.type OFFLINE   OFFLINE               ora....ER.lsnr ora....er.type ONLINE    ONLINE    rac1        ora....N1.lsnr ora....er.type ONLINE    ONLINE    rac1        ora.VOTE.dg    ora....up.type ONLINE    ONLINE    rac1        ora.VOTE2.dg   ora....up.type OFFLINE   OFFLINE               ora.asm        ora.asm.type   ONLINE    ONLINE    rac1        ora.cvu        ora.cvu.type   ONLINE    ONLINE    rac1        ora.gsd        ora.gsd.type   OFFLINE   OFFLINE               ora....network ora....rk.type ONLINE    ONLINE    rac1        ora.oc4j       ora.oc4j.type  ONLINE    ONLINE    rac1        ora.ons        ora.ons.type   ONLINE    ONLINE    rac1        ora.rac.db     ora....se.type ONLINE    ONLINE    rac1        ora....SM1.asm application    ONLINE    ONLINE    rac1        ora....C1.lsnr application    ONLINE    ONLINE    rac1        ora.rac1.gsd   application    OFFLINE   OFFLINE               ora.rac1.ons   application    ONLINE    ONLINE    rac1        ora.rac1.vip   ora....t1.type ONLINE    ONLINE    rac1        ora....SM2.asm application    ONLINE    ONLINE    rac2        ora....C2.lsnr application    ONLINE    ONLINE    rac2        ora.rac2.gsd   application    OFFLINE   OFFLINE               ora.rac2.ons   application    ONLINE    ONLINE    rac2        ora.rac2.vip   ora....t1.type ONLINE    ONLINE    rac2        ora....ry.acfs ora....fs.type ONLINE    ONLINE    rac1        ora.scan1.vip  ora....ip.type ONLINE    ONLINE    rac1

三、DataGuard部署部分

前面部分我们已经搭建了RAC环境了，此时我们需要另外一台服务器做standby database，在以下步骤之前，请确保该服务器已经安装好oracle库软件。

主库配置及相关操作

1、确认主库处于归档模式

SQL> archive log listDatabase log mode              Archive ModeAutomatic archival             EnabledArchive destination            +DATAOldest online log sequence     135Next log sequence to archive   136Current log sequence           136

2、如果不是归档模式，必须先调整为归档模式

SQL> alter database archivelog;

3、主库设为FORCE LOGGING模式

SQL> alter database force logging;SQL> select name,log_mode,force_logging from v$database;NAME      LOG_MODE     FOR--------- ------------ ---RAC       ARCHIVELOG   YES

4、查询主库日志文件

SQL> select thread#,group#,members,bytes/1024/1024 from v$log;   THREAD#     GROUP#    MEMBERS BYTES/1024/1024---------- ---------- ---------- ---------------         1          1          1              50         1          2          1              50         2          3          1              50         2          4          1              50

5、为主库添加6组standby log文件，以便它们自动被传送到备库。（一般比主库多一组）

SQL> alter database add standby logfile thread 1 group 11 size 50m;SQL> alter database add standby logfile thread 1 group 12 size 50m;SQL> alter database add standby logfile thread 1 group 13 size 50m;SQL> alter database add standby logfile thread 2 group 14 size 50m;SQL> alter database add standby logfile thread 2 group 15 size 50m;SQL> alter database add standby logfile thread 2 group 16 size 50m;

查询添加的日志文件

SQL> select group#,thread#,bytes/1024/1024,status from v$standby_log;    GROUP#    THREAD# BYTES/1024/1024 STATUS---------- ---------- --------------- ----------        11          1              50 UNASSIGNED        12          1              50 UNASSIGNED        13          1              50 UNASSIGNED        14          2              50 UNASSIGNED        15          2              50 UNASSIGNED        16          2              50 UNASSIGNED6 rows selected.

6、修改主库初始化参数文件

SQL> alter system set log_archive_config='DG_CONFIG=(rac,rac_dg)' scope=both sid='*';SQL> alter system set log_archive_dest_2='SERVICE=o4db_dg LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=rac_dg' scope=both sid='*';SQL> alter system set log_archive_format='%t_%s_%r.arc' scope=spfile sid='*';SQL> alter system set log_archive_max_processes=8 scope=both sid='*';SQL> alter system set db_file_name_convert='/oradata/rac/','+DATA/rac/datafile' scope=spfile sid='*';SQL> alter system set log_file_name_convert='/oradata/rac/','+DATA/rac/onlinelog' scope=spfile sid='*';SQL> alter system set standby_file_management=AUTO scope=both sid='*';SQL> alter system set fal_server='rac_dg' scope=both sid='*';

7、查看配置是否生效，通过下列语句查询

SQL> set linesize 500 pages 0SQL> col value for a90SQL> col name for a50SQL> select name, value from v$parameter where name in ('db_name','db_unique_name','log_archive_config', 'log_archive_dest_1','log_archive_dest_2','log_archive_dest_state_1','log_archive_dest_state_2','remote_login_passwordfile','log_archive_format','log_archive_max_processes','fal_server','db_file_name_convert', 'log_file_name_convert', 'standby_file_management');db_file_name_convert                               /oradata/rac, +DATA/rac/datafilelog_file_name_convert                              /oradata/rac, +DATA/rac/onlineloglog_archive_dest_1                                 LOCATION=+DATAlog_archive_dest_2                                 SERVICE=rac_dg LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=rac_dglog_archive_dest_state_1                           enablelog_archive_dest_state_2                           ENABLEfal_server                                         rac_dglog_archive_config                                 DG_CONFIG=(rac,rac_dg)log_archive_format                                 %t_%s_%r.arclog_archive_max_processes                          8standby_file_management                            AUTOremote_login_passwordfile                          EXCLUSIVEdb_name                                            racdb_unique_name                                     rac14 rows selected.

8、配置主库本地NET服务名（两个节点，包括standby database节点）

[oracle@rac1 ~]$ vi /u01/oracle/app/11.2.0/network/admin/tnsnames.ora  RAC =  (DESCRIPTION =    (ADDRESS = (PROTOCOL = TCP)(HOST = rac-scan)(PORT = 1521))    (CONNECT_DATA =      (SERVER = DEDICATED)      (SERVICE_NAME = rac)    )  ) RAC_DG =  (DESCRIPTION =    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.10)(PORT = 1521))    (CONNECT_DATA =      (SERVER = DEDICATED)      (SERVICE_NAME = rac_dg)    )  )

9、在主库中创建StandbyControl File，并上传到standby节点

SQL> alter database create standby controlfile as '/tmp/control_dg.ctl';[oracle@rac1 ~]$ scp /tmp/control_dg.ctl 192.168.56.10:/oradata/rac/control01.ctl

10、主库做全库备份

RMAN> backup database format '/u01/oracle/backup/rac_%T_%s';Starting backup at 25-MAY-17using target database control file instead of recovery catalogallocated channel: ORA_DISK_1channel ORA_DISK_1: SID=34 instance=rac1 device type=DISKchannel ORA_DISK_1: starting full datafile backup setchannel ORA_DISK_1: specifying datafile(s) in backup setinput datafile file number=00001 name=+DATA/rac/datafile/system.256.939291779input datafile file number=00002 name=+DATA/rac/datafile/sysaux.257.939291779input datafile file number=00003 name=+DATA/rac/datafile/undotbs1.258.939291779input datafile file number=00005 name=+DATA/rac/datafile/undotbs2.264.939292069input datafile file number=00004 name=+DATA/rac/datafile/users.259.939291779input datafile file number=00006 name=+DATA/rac/datafile/test.411.944053153input datafile file number=00007 name=+DATA/rac/datafile/test.412.944053495channel ORA_DISK_1: starting piece 1 at 25-MAY-17channel ORA_DISK_1: finished piece 1 at 25-MAY-17piece handle=/u01/oracle/backup/rac_20170525_10 tag=TAG20170525T211359 comment=NONEchannel ORA_DISK_1: backup set complete, elapsed time: 00:02:08channel ORA_DISK_1: starting full datafile backup setchannel ORA_DISK_1: specifying datafile(s) in backup setincluding current control file in backup setincluding current SPFILE in backup setchannel ORA_DISK_1: starting piece 1 at 25-MAY-17channel ORA_DISK_1: finished piece 1 at 25-MAY-17piece handle=/u01/oracle/backup/rac_20170525_11 tag=TAG20170525T211359 comment=NONEchannel ORA_DISK_1: backup set complete, elapsed time: 00:00:01Finished backup at 25-MAY-17

11、scp备份集到standby节点

[oracle@rac1 backup]$ scp /u01/oracle/backup/* 192.168.56.10:/oradata/backup/oracle@192.168.56.10's password: rac_20170525_10                                                100% 1261MB   7.5MB/s   02:48 rac_20170525_11                                                100%   18MB  18.0MB/s   00:01

12、为standby创建密码文件

[oracle@rac1 ~]$ scp /u01/oracle/app/11.2.0/dbs/orapwrac1 192.168.56.10:/u01/oracle/app/11.2.0/dbs/orapwracoracle@192.168.56.10's password: orapwrac1                                                      100% 1536     1.5KB/s   00:00

standbydatabase配置部分

1、修改初始化文件如下

[oracle@racdg dbs]$ cat /u01/oracle/app/11.2.0/dbs/initrac.ora *.audit_file_dest='/u01/oracle/app/admin/rac/adump'*.audit_trail='db'*.compatible='11.2.0.4.0'*.control_files='/oradata/rac/control01.ctl'*.db_block_size=8192*.db_create_file_dest='/oradata/rac'*.db_domain=''*.db_name='rac'*.db_unique_name='rac_dg'*.diagnostic_dest='/u01/oracle/app'*.dispatchers='(PROTOCOL=TCP) (SERVICE=racXDB)'*.fal_server='rac'*.log_archive_config='DG_CONFIG=(rac,rac_dg)'*.log_archive_dest_1='LOCATION=/oradata/arch VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=rac_dg'#*.log_archive_dest_2='SERVICE=rac LGWR ASYNC VALID_FOR=(ALL_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=rac OPTIONAL PROPEN=15 MAX_FAILURE=10 NET_TIMEOUT=30'*.log_archive_dest_2='SERVICE=rac LGWR ASYNC VALID_FOR=(ALL_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=rac'*.log_archive_dest_state_2='enable'*.log_file_name_convert='+DATA/rac/onlinelog','/oradata/rac'*.db_file_name_convert='+DATA/rac/datafile','/oradata/rac'*.log_archive_format='%t_%s_%r.dbf'*.log_archive_max_processes=8*.open_cursors=300*.pga_aggregate_target=536870912*.processes=150*.remote_login_passwordfile='exclusive'*.standby_file_management='AUTO'*.sga_target=2147483648*.undo_tablespace='UNDOTBS1'

2、创建相关目录路径

[oracle@racdg dbs]$ mkdir -p /u01/oracle/app/admin/rac/adump[oracle@racdg dbs]$ mkdir -p /oradata/rac[oracle@racdg dbs]$ mkdir -p /oradata/arch

3、创建监听器

[oracle@racdg dbs]$ vi /u01/oracle/app/11.2.0/network/admin/listener.ora LISTENER =   (DESCRIPTION_LIST =     (DESCRIPTION =       (ADDRESS = (PROTOCOL = TCP)(HOST = racdg)(PORT = 1521)))          (DESCRIPTION =       (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))     )    )ADR_BASE_LISTENER = /u01/oracle/app

4、配置备库本地NET服务名（与主库一致）

[oracle@racdg dbs]$ cat /u01/oracle/app/11.2.0/network/admin/tnsnames.ora  RAC =  (DESCRIPTION =    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.100)(PORT = 1521))    (CONNECT_DATA =      (SERVER = DEDICATED)      (SERVICE_NAME = rac)    )  ) rac_dg =  (DESCRIPTION =    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.10)(PORT = 1521))    (CONNECT_DATA =      (SERVER = DEDICATED)      (SERVICE_NAME = rac_dg)    )  )

主库tnsping测试（确保监听打开）

[oracle@rac1 tmp]$ tnsping rac_dgTNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 26-MAY-2017 00:37:30Copyright (c) 1997, 2013, Oracle.  All rights reserved.Used parameter files:Used TNSNAMES adapter to resolve the aliasAttempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.10)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = rac_dg)))OK (0 msec)

备库tnsping测试（确保监听打开）

[oracle@racdg dbs]$ tnsping racTNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 25-MAY-2017 22:32:43Copyright (c) 1997, 2013, Oracle.  All rights reserved.Used parameter files:Used TNSNAMES adapter to resolve the aliasAttempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.100)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = rac)))OK (0 msec)

5、启动到mount状态

SQL> startup mount;ORACLE instance started.Total System Global Area 2137886720 bytesFixed Size                  2254952 bytesVariable Size             553650072 bytesDatabase Buffers         1577058304 bytesRedo Buffers                4923392 bytesDatabase mounted.

6、使用rman恢复备库

[oracle@racdg ~]$ rman target /Recovery Manager: Release 11.2.0.4.0 - Production on Thu May 25 22:36:41 2017Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.connected to target database: RAC (DBID=2527273880, not open)RMAN> catalog start with '/oradata/backup';using target database control file instead of recovery catalogsearching for all files that match the pattern /oradata/backupList of Files Unknown to the Database=====================================File Name: /oradata/backup/rac_20170525_11File Name: /oradata/backup/rac_20170525_10Do you really want to catalog the above files (enter YES or NO)? yescataloging files...cataloging doneList of Cataloged Files=======================File Name: /oradata/backup/rac_20170525_11File Name: /oradata/backup/rac_20170525_10

RMAN> run {2> allocate channel ch00 type disk;3> allocate channel ch01 type disk;4> allocate channel ch02 type disk;5> allocate channel ch03 type disk;6> set newname for datafile 1 to '/oradata/rac/system.dbf';7> set newname for datafile 2 to '/oradata/rac/sysaux.dbf';8> set newname for datafile 3 to '/oradata/rac/undotbs1.dbf';9> set newname for datafile 4 to '/oradata/rac/users.dbf';10> set newname for datafile 5 to '/oradata/rac/undotbs2.dbf';11> set newname for datafile 6 to '/oradata/rac/test.dbf';12> set newname for datafile 7 to '/oradata/rac/test01.dbf';13> restore database;14> switch datafile all;15> release channel ch00;16> release channel ch01;17> release channel ch02;18> release channel ch03;19> }allocated channel: ch00channel ch00: SID=148 device type=DISKallocated channel: ch01channel ch01: SID=24 device type=DISKallocated channel: ch02channel ch02: SID=149 device type=DISKallocated channel: ch03channel ch03: SID=25 device type=DISKexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEexecuting command: SET NEWNAMEStarting restore at 25-MAY-17channel ch00: starting datafile backup set restorechannel ch00: specifying datafile(s) to restore from backup setchannel ch00: restoring datafile 00001 to /oradata/rac/system.dbfchannel ch00: restoring datafile 00002 to /oradata/rac/sysaux.dbfchannel ch00: restoring datafile 00003 to /oradata/rac/undotbs1.dbfchannel ch00: restoring datafile 00004 to /oradata/rac/users.dbfchannel ch00: restoring datafile 00005 to /oradata/rac/undotbs2.dbfchannel ch00: restoring datafile 00006 to /oradata/rac/test.dbfchannel ch00: restoring datafile 00007 to /oradata/rac/test01.dbfchannel ch00: reading from backup piece /oradata/backup/rac_20170525_10channel ch00: piece handle=/oradata/backup/rac_20170525_10 tag=TAG20170525T211359channel ch00: restored backup piece 1channel ch00: restore complete, elapsed time: 00:00:45Finished restore at 25-MAY-17datafile 1 switched to datafile copyinput datafile copy RECID=10 STAMP=944955143 file name=/oradata/rac/system.dbfdatafile 2 switched to datafile copyinput datafile copy RECID=11 STAMP=944955143 file name=/oradata/rac/sysaux.dbfdatafile 3 switched to datafile copyinput datafile copy RECID=12 STAMP=944955143 file name=/oradata/rac/undotbs1.dbfdatafile 4 switched to datafile copyinput datafile copy RECID=13 STAMP=944955143 file name=/oradata/rac/users.dbfdatafile 5 switched to datafile copyinput datafile copy RECID=14 STAMP=944955143 file name=/oradata/rac/undotbs2.dbfdatafile 6 switched to datafile copyinput datafile copy RECID=15 STAMP=944955143 file name=/oradata/rac/test.dbfdatafile 7 switched to datafile copyinput datafile copy RECID=16 STAMP=944955143 file name=/oradata/rac/test01.dbfreleased channel: ch00released channel: ch01released channel: ch02released channel: ch03

7、standby开启日志应用

SQL> alter database recover managed standby database using current logfile disconnect from session;

8、备库查询进程状态（注意RFS进程和MRP0进程）

SQL> select process, client_process, sequence#,thread#,status from v$managed_standby;PROCESS   CLIENT_P  SEQUENCE#    THREAD# STATUS--------- -------- ---------- ---------- ------------ARCH      ARCH              0          0 CONNECTEDARCH      ARCH              0          0 CONNECTEDARCH      ARCH              0          0 CONNECTEDARCH      ARCH              0          0 CONNECTEDARCH      ARCH              0          0 CONNECTEDARCH      ARCH            140          1 CLOSINGARCH      ARCH             48          2 CLOSINGARCH      ARCH              0          0 CONNECTEDRFS       ARCH              0          0 IDLERFS       ARCH              0          0 IDLERFS       LGWR             49          2 IDLERFS       UNKNOWN           0          0 IDLERFS       UNKNOWN           0          0 IDLERFS       UNKNOWN           0          0 IDLERFS       UNKNOWN           0          0 IDLERFS       LGWR            141          1 IDLERFS       UNKNOWN           0          0 IDLERFS       UNKNOWN           0          0 IDLERFS       UNKNOWN           0          0 IDLERFS       UNKNOWN           0          0 IDLERFS       UNKNOWN           0          0 IDLEMRP0      N/A             141          1 APPLYING_LOG22 rows selected.

9、主库查询进程状态（注意LNS进程）

SQL> select process, client_process, sequence#,thread#,status from v$managed_standby;PROCESS   CLIENT_P  SEQUENCE#    THREAD# STATUS--------- -------- ---------- ---------- ------------ARCH      ARCH            139          1 CLOSINGARCH      ARCH              0          0 CONNECTEDARCH      ARCH            139          1 CLOSINGARCH      ARCH              0          0 CONNECTEDARCH      ARCH            140          1 CLOSINGARCH      ARCH            137          1 CLOSINGARCH      ARCH            136          1 CLOSINGARCH      ARCH            137          1 CLOSINGLNS       LNS             141          1 WRITING9 rows selected.

10、对比主备库日志序列号

SQL> select sequence#, first_time, next_time, applied from v$archived_log order by sequence#; SEQUENCE# FIRST_TIM NEXT_TIME APPLIED---------- --------- --------- ---------        44 25-MAY-17 25-MAY-17 YES        45 25-MAY-17 25-MAY-17 YES        46 25-MAY-17 25-MAY-17 YES        47 25-MAY-17 25-MAY-17 YES        48 25-MAY-17 25-MAY-17 YES        49 25-MAY-17 25-MAY-17 IN-MEMORY       136 25-MAY-17 25-MAY-17 YES       137 25-MAY-17 25-MAY-17 YES       138 25-MAY-17 25-MAY-17 YES       139 25-MAY-17 25-MAY-17 YES       140 25-MAY-17 25-MAY-17 YES11 rows selected.

11、主库手动切换日志

SQL> alter system switch logfile;

备库查询日志序列号

SQL> select sequence#, first_time, next_time, applied from v$archived_log order by sequence#; SEQUENCE# FIRST_TIM NEXT_TIME APPLIED---------- --------- --------- ---------        44 25-MAY-17 25-MAY-17 YES        45 25-MAY-17 25-MAY-17 YES        46 25-MAY-17 25-MAY-17 YES        47 25-MAY-17 25-MAY-17 YES        48 25-MAY-17 25-MAY-17 YES        49 25-MAY-17 25-MAY-17 YES       136 25-MAY-17 25-MAY-17 YES       137 25-MAY-17 25-MAY-17 YES       138 25-MAY-17 25-MAY-17 YES       139 25-MAY-17 25-MAY-17 YES       140 25-MAY-17 25-MAY-17 YES       141 25-MAY-17 25-MAY-17 IN-MEMORY12 rows selected.

由此得知，standby已经实时应用日志了。

12、Data Guard切换到打开模式，首先需要停止日志应用

SQL> alter database recover managed standby database cancel;Database altered.SQL> alter database open read only;Database altered.SQL> alter database recover managed standby database using current logfile disconnect from session;Database altered.

13、测试操作

在主库新建一张表aa，从备库能实时查询

SQL> create table aa as select * from scott.emp;Table created.主备库查询数据一致：SQL> select count(*) from aa;  COUNT(*)----------        14

需要注意的是，数据库只读打开后，只可以进行查询并恢复PRIMARY数据库的日志，但是不能进行修改数据。

至此，rac+dg的搭建部署已经完成。

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