在redhat 7.4上安装oracle 18c RAC

文章目录

准备工作

硬件最低配置要求
RAC规划
磁盘划分
配置host
添加用户和组
禁用透明大页
关闭防火墙和selinux
禁用chronyd
配置时间同步
关闭avahi-daemon
创建目录
配置用户环境变量·

GRID用户

修改/etc/security/limits.conf
配置NOZEROCONF
修改内核参数
安装必要的包
安装cvuqdisk
配置共享磁盘

修改磁盘属性

安装GRID

上传解压介质
运行安装
验证集群是否正常

ASMCA创建磁盘组
安装DB
DBCA创建数据库
验证

查看RAC集群状态
查看数据库状态及版本

准备工作

目前Oracle官方网站上放出了18.3版本的下载，今天测试一下18.3的RAC安装。

https://www.oracle.com/technetwork/database/enterprise-edition/downloads/oracle18c-linux-180000-5022980.html

硬件最低配置要求

序号	组件	内存
1	Oracle Grid Infrastructure installations	8GB以上
2	Oracle Database installations	最小1GB，建议2GB以上

RAC规划

服务器主机名	rac1	rac2
公共 IP 地址（enp0s3）	192.168.1.127	192.168.1.128
虚拟 IP 地址（enp0s3）	192.168.1.129	192.168.1.130
私有 IP 地址（enp0s8）	192.168.3.101	192.168.3.102
ORACLE RAC SID	cndba1	cndba2
集群实例名称	cndba
SCAN IP	192.168.1.131
操作系统	Red Hat 7.5
Oracle 版本	18.3.0.1

磁盘划分

仅仅为了安装测试。由于12C R2中对磁盘组空间要求更大。OCR外部冗余最少40G，NORMAL最少80G。

磁盘组名称	磁盘	大小	冗余策略
DATAFILE	data01	50G	NORMAL
DATAFILE	data02	50G	NORMAL
DATAFILE	data03	50G	NORMAL
OCR	OCRVOTING01	30G	NORMAL
OCR	OCRVOTING02	30G	NORMAL
OCR	OCRVOTING03	30G	NORMAL

配置host

 cat /etc/hosts
127.0.0.1   localhost

192.168.1.127 rac1
172.168.3.101 rac1-priv
192.168.1.129 rac1-vip

192.168.1.128 rac2
172.168.3.102 rac2-priv
192.168.1.130 rac2-vip

192.168.1.131 rac-scan

添加用户和组


/usr/sbin/groupadd -g 54321 oinstall
/usr/sbin/groupadd -g 54322 dba
/usr/sbin/groupadd -g 54323 oper
/usr/sbin/groupadd -g 54324 backupdba
/usr/sbin/groupadd -g 54325 dgdba
/usr/sbin/groupadd -g 54326 kmdba
/usr/sbin/groupadd -g 54327 asmdba
/usr/sbin/groupadd -g 54328 asmoper
/usr/sbin/groupadd -g 54329 asmadmin
/usr/sbin/groupadd -g 54330 racdba
/usr/sbin/useradd -u 54321 -g oinstall -G dba,asmdba,oper oracle
/usr/sbin/useradd -u 54322 -g oinstall -G dba,oper,backupdba,dgdba,kmdba,asmdba,asmoper,asmadmin,racdba grid

确认用户：

  id oracle
 id -a grid
 passwd grid
 passwd oracle

禁用透明大页

默认是启用的，如下：

[root@rac1 bin]# cat /sys/kernel/mm/transparent_hugepage/enabled
[always] madvise never

Redhat 6.*版本目录为：

/sys/kernel/mm/redhat_transparent_hugepage/enabled

禁用Redhat 7.* 是/etc/default/grub，6.*是/etc/grub.conf

[root@rac1 bin]# cat /etc/default/grub
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rhgb quiet"
GRUB_DISABLE_RECOVERY="true"
transparent_hugepage=never

关闭防火墙和selinux

防火墙：

 systemctl stop firewalld.service
 systemctl disable firewalld.service
rm '/etc/systemd/system/basic.target.wants/firewalld.service'
rm '/etc/systemd/system/dbus-org.Fedoraproject.FirewallD1.service'

SELINUX：

cat /etc/selinux/config 

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

禁用chronyd

# systemctl stop chronyd
# systemctl disable chronyd

配置时间同步

Redhat 7好像ntp服务默认不启用

 systemctl stop ntpd.service
 systemctl disable ntpd.service
 mv /etc/ntp.conf /etc/ntp.conf.org
 rm /var/run/ntpd.pid

关闭avahi-daemon

[root@rac1 u01]# systemctl stop avahi-daemon
Warning: Stopping avahi-daemon.service, but it can still be activated by:
  avahi-daemon.socket
[root@rac1 u01]# systemctl disable avahi-daemon
Removed symlink /etc/systemd/system/multi-user.target.wants/avahi-daemon.service.
Removed symlink /etc/systemd/system/sockets.target.wants/avahi-daemon.socket.
Removed symlink /etc/systemd/system/dbus-org.freedesktop.Avahi.service.

创建目录

 mkdir -p /u01/app/18.3.0/grid
 mkdir -p /u01/app/grid
 mkdir -p /u01/app/oracle/product/18.3.0/db_1
 chown -R grid:oinstall /u01
 chown -R oracle:oinstall /u01/app/oracle
 chmod -R 775 /u01/

配置用户环境变量·

##3# ORACLE用户

 cat /home/oracle/.bash_profile 
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
	. ~/.bashrc
fi

# User specific environment and startup programs

ORACLE_SID=lei1;export ORACLE_SID
ORACLE_UNQNAME=lei;export ORACLE_UNQNAME
JAVA_HOME=/usr/local/java; export JAVA_HOME
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/18.3.0/db_1; exportORACLE_HOME
ORACLE_TERM=xterm; export ORACLE_TERM
NLS_DATE_FORMAT="YYYY:MM:DDHH24:MI:SS"; export NLS_DATE_FORMAT
NLS_LANG=american_america.ZHS16GBK; exportNLS_LANG
TNS_ADMIN=$ORACLE_HOME/network/admin; exportTNS_ADMIN
ORA_NLS11=$ORACLE_HOME/nls/data; exportORA_NLS11
PATH=.:${JAVA_HOME}/bin:${PATH}:$HOME/bin:$ORACLE_HOME/bin:$ORA_CRS_HOME/bin
PATH=${PATH}:/usr/bin:/bin:/usr/bin/X11:/usr/local/bin
export PATH
LD_LIBRARY_PATH=$ORACLE_HOME/lib
LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:$ORACLE_HOME/oracm/lib
LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/lib:/usr/lib:/usr/local/lib
export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE
CLASSPATH=${CLASSPATH}:$ORACLE_HOME/jlib
CLASSPATH=${CLASSPATH}:$ORACLE_HOME/rdbms/jlib
CLASSPATH=${CLASSPATH}:$ORACLE_HOME/network/jlib
export CLASSPATH
THREADS_FLAG=native; export THREADS_FLAG
export TEMP=/tmp
export TMPDIR=/tmp
umask 022

GRID用户

 cat /home/grid/.bash_profile 
# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
	. ~/.bashrc
fi

# User specific environment and startup programs

PATH=$PATH:$HOME/bin

export ORACLE_SID=+ASM1    ---另一个节点是ASM2
export ORACLE_BASE=/u01/app/grid
export ORACLE_HOME=/u01/app/18.3.0/grid
exportPATH=$ORACLE_HOME/bin:$PATH:/usr/local/bin/:.
export TEMP=/tmp
export TMP=/tmp
export TMPDIR=/tmp
umask 022
export PATH

修改/etc/security/limits.conf

 cat >> /etc/security/limits.conf <<EOF
grid  soft  nproc  2047
grid  hard  nproc  16384
grid  soft   nofile  1024
grid  hard  nofile  65536
grid  soft   stack  10240
grid  hard  stack  32768
 
oracle  soft  nproc  2047
oracle  hard  nproc  16384
oracle  soft  nofile  1024
oracle  hard  nofile  65536
oracle  soft  stack  10240
oracle  hard  stack  32768
oracle soft memlock 3145728
oracle hard memlock 3145728
EOF

配置NOZEROCONF

vi /etc/sysconfig/network增加以下内容
NOZEROCONF=yes

修改内核参数

 vi /etc/sysctl.conf 
fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
kernel.panic_on_oops = 1
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500
sysctl -p

安装必要的包

yum install binutils  compat-libstdc++-33   gcc  gcc-c++  glibc  glibc.i686  glibc-devel   ksh   libgcc.i686   libstdc++-devel  libaio  libaio.i686  libaio-devel  libaio-devel.i686  libXext  libXext.i686  libXtst  libXtst.i686  libX11  libX11.i686  libXau  libXau.i686  libxcb  libxcb.i686  libXi  libXi.i686  make  sysstat  unixODBC  unixODBC-devel  zlib-devel  zlib-devel.i686 compat-libcap1 -y

安装cvuqdisk

cvuqdisk存于oracle GI安装介质的cv/rpm目录下

export CVUQDISK_GRP=asmadmin
rpm –ivh cvuqdisk-1.0.10-1.rpm

配置共享磁盘

注意：UDEV有所变化

 for i in b c d e f g;
do
echo "KERNEL==\"sd*\",ENV{DEVTYPE}==\"disk\",SUBSYSTEM==\"block\",PROGRAM==\"/usr/lib/udev/scsi_id -g -u -d \$devnode\",RESULT==\"`/usr/lib/udev/scsi_id -g -u /dev/sd$i`\", RUN+=\"/bin/sh -c 'mknod /dev/asmdisk$i b  \$major \$minor; chown grid:asmadmin /dev/asmdisk$i; chmod 0660 /dev/asmdisk$i'\""
done

KERNEL=="sd*",ENV{DEVTYPE}=="disk",SUBSYSTEM=="block",PROGRAM=="/usr/lib/udev/scsi_id -g -u -d $devnode",RESULT=="1ATA_VBOX_HARDDISK_VBe3a660e4-28d16ab4", RUN+="/bin/sh -c 'mknod /dev/asmdiskb b  $major $minor; chown grid:asmadmin /dev/asmdiskb; chmod 0660 /dev/asmdiskb'"
KERNEL=="sd*",ENV{DEVTYPE}=="disk",SUBSYSTEM=="block",PROGRAM=="/usr/lib/udev/scsi_id -g -u -d $devnode",RESULT=="1ATA_VBOX_HARDDISK_VB62905e08-62ff511e", RUN+="/bin/sh -c 'mknod /dev/asmdiskc b  $major $minor; chown grid:asmadmin /dev/asmdiskc; chmod 0660 /dev/asmdiskc'"
KERNEL=="sd*",ENV{DEVTYPE}=="disk",SUBSYSTEM=="block",PROGRAM=="/usr/lib/udev/scsi_id -g -u -d $devnode",RESULT=="1ATA_VBOX_HARDDISK_VB5a45a1b2-fe59c04a", RUN+="/bin/sh -c 'mknod /dev/asmdiskd b  $major $minor; chown grid:asmadmin /dev/asmdiskd; chmod 0660 /dev/asmdiskd'"
KERNEL=="sd*",ENV{DEVTYPE}=="disk",SUBSYSTEM=="block",PROGRAM=="/usr/lib/udev/scsi_id -g -u -d $devnode",RESULT=="1ATA_VBOX_HARDDISK_VB29aa260e-de2995eb", RUN+="/bin/sh -c 'mknod /dev/asmdiske b  $major $minor; chown grid:asmadmin /dev/asmdiske; chmod 0660 /dev/asmdiske'"
KERNEL=="sd*",ENV{DEVTYPE}=="disk",SUBSYSTEM=="block",PROGRAM=="/usr/lib/udev/scsi_id -g -u -d $devnode",RESULT=="1ATA_VBOX_HARDDISK_VBc57e0eb1-963167ae", RUN+="/bin/sh -c 'mknod /dev/asmdiskf b  $major $minor; chown grid:asmadmin /dev/asmdiskf; chmod 0660 /dev/asmdiskf'"
KERNEL=="sd*",ENV{DEVTYPE}=="disk",SUBSYSTEM=="block",PROGRAM=="/usr/lib/udev/scsi_id -g -u -d $devnode",RESULT=="1ATA_VBOX_HARDDISK_VBaf08bf01-58ec0b63", RUN+="/bin/sh -c 'mknod /dev/asmdiskg b  $major $minor; chown grid:asmadmin /dev/asmdiskg; chmod 0660 /dev/asmdiskg'"

将以上内容写入/etc/udev/rules.d/99-oracle-asmdevices.rules

 /sbin/udevadm trigger --type=devices --action=change

如果权限没有变，尝试重启。

[root@rac1 rpm]# ll /dev/asm*
brw-rw---- 1 grid asmadmin 8,  16 Mar 21 08:53 /dev/asmdiskb
brw-rw---- 1 grid asmadmin 8,  32 Mar 21 08:53 /dev/asmdiskc
brw-rw---- 1 grid asmadmin 8,  48 Mar 21 08:53 /dev/asmdiskd
brw-rw---- 1 grid asmadmin 8,  64 Mar 21 08:53 /dev/asmdiske
brw-rw---- 1 grid asmadmin 8,  80 Mar 21 08:53 /dev/asmdiskf
brw-rw---- 1 grid asmadmin 8,  96 Mar 21 08:53 /dev/asmdiskg

修改磁盘属性

为获得更好的磁盘性能，Oracle推荐使用Deadline I/O Scheduler，而默认是Completely Fair Queuing (CFQ)

编辑文件

# vi /etc/udev/rules.d/60-oracle-schedulers.rules
ACTION=="add|change", KERNEL=="sd[b-j]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="deadline"

拷贝到节点2

$ scp 60-oracle-schedulers.rules root@rac2:/etc/udev/rules.d/

加载配置

# udevadm control --reload-rules

检查是否已修改

[root@RAC1 software]# cat /sys/block/sdb/queue/scheduler
noop [deadline] cfq

安装GRID

下载地址：
http://www.oracle.com/technetwork/database/enterprise-edition/downloads/oracle12c-linux-12201-3608234.html

上传解压介质

[grid@rac1 software]$ ll
total 5256120
-rw-r--r-- 1 grid oinstall 5382265496 Jul 24 10:18 LINUX.X64_180000_grid_home.zip 
[grid@rac1 software]$unzip -d /u01/app/18.1.0/grid LINUX.X64_180000_grid_home.zip

–将其解压到Grid home目录下

注意：解压之后和之前所有区别，R2解压后的文件所在目录就是grid home。所以解压的时候，就要把文件解压到之前定的GRID_HOME下。在12c R2之前是安装的时候，软件会自动复制过去。

Starting with Oracle Database 18c, the Oracle Database software is available as an image file for download and installation. Extract the image software into the directory where you want your Oracle home to be located, and then run the runInstaller script to start the Oracle Database installation.

运行安装

注意：运行下面这个脚本，也有所不同

[grid@rac1 grid]$ ll gridSetup.sh 
-rwxr-x--- 1 grid oinstall 5395 Jul 21  2016 gridSetup.sh
[grid@rac1 grid]$ pwd
[grid@rac1 grid]$ /u01/app/grid
[grid@rac1 grid]$ ./gridSetup.sh

在这里插入图片描述添加节点
配ssh
如果不为GIMR单独分配一个磁盘组，那么OCR磁盘组需要更大的空间。由于GIMR是一个单独的数据库，因此Oracle推荐使用专门的磁盘组来存储GIMR数据。
MGMT磁盘组最小的大小要求：NORMAL是56G，External是28G，High/Flex/Extended是84G。
如果MGMT和OCR使用同一个磁盘组：NORMAL是60G，External是30G，High/Flex/Extended是90G。
在这里插入图片描述
执行脚本

root.sh脚本最后：

CRS-6016: Resource auto-start has completed for server rac1
CRS-6024: Completed start of Oracle Cluster Ready Services-managed resources
CRS-4123: Oracle High Availability Services has been started.
2017/03/21 14:12:39 CLSRSC-343: Successfully started Oracle Clusterware stack
2017/03/21 14:12:39 CLSRSC-594: Executing installation step 18 of 19: 'ConfigNode'.
2017/03/21 14:16:10 CLSRSC-594: Executing installation step 19 of 19: 'PostConfig'.
2017/03/21 14:17:55 CLSRSC-325: Configure Oracle Grid Infrastructure for a Cluster ... succeeded

表示成功了

验证集群是否正常

[grid@rac1 ~]$ crsctl stat res -t
--------------------------------------------------------------------------------------------------------------
Name    Target  State        Server   State details       Local Resources
----------------------------------------------------------------------------------------------------------------
ora.ASMNET1LSNR_ASM.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.OCR_VOTE.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.net1.network
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.ons
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac1                     STABLE
ora.MGMTLSNR
      1        OFFLINE OFFLINE                               STABLE
ora.asm
      1        ONLINE  ONLINE       rac1                     Started,STABLE
      2        ONLINE  ONLINE       rac2                     Started,STABLE
      3        OFFLINE OFFLINE                               STABLE
ora.cvu
      1        ONLINE  ONLINE       rac1                     STABLE
ora.qosmserver
      1        ONLINE  ONLINE       rac1                     STABLE
ora.rac1.vip
      1        ONLINE  ONLINE       rac1                     STABLE
ora.rac2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan1.vip
      1        ONLINE  ONLINE       rac1                     STABLE
--------------------------------------------------------------------------------
[grid@rac1 ~]$

ASMCA创建磁盘组

创建DATA磁盘组用于存储数据文件。
在这里插入图片描述
选择冗余级别，磁盘组名称，AU和磁盘。可选Failgroup名称，磁盘名称。

安装DB

这个安装方式有所变化，和安装Grid一样，直接解压到Oracle Home下即可，然后安装
unzip -d /u01/app/oracle/product/18.3.0/db_1 LINUX.X64_180000_db_home.zip
./runInstaller
这里先安装Oracle DB软件
在这里插入图片描述
选择安装rac集群数据库

配置oracle用户的SSH互信，输入oracle用户密码点击“Setup”建立SSH互信。
输入Oracle Base目录，在所有节点上目录要一样并且oracle有读写权限

根据实际需要可以细分用户权限，都用dba权限即可。
在这里插入图片描述
安装前提检查，根据实际情况来处理。如果要忽略提示信息继续安装，则选择“Ingore All”

对以上的检查项进行说明：

物理内存警告，需要内存大于8G。
Swap大小警告，需要和内存一样。如果内存大于16G，Swap16G即可。
resolv.conf用于配置DNS
RedHat 7.*会自动挂载/dev/shm，不需要再/etc/fstab文件中配置了
不使用操作系统的NTP来进行时间同步。
在/etc/hosts中正确配置scan即可

在这里插入图片描述
在所有节点上以root用户执行脚本来完成安装

例如：

[root@RAC1 ~]# /u01/app/oracle/product/18.3.0/db_1/root.sh
Performing root user operation.

The following environment variables are set as:
    ORACLE_OWNER= oracle
    ORACLE_HOME=  /u01/app/oracle/product/18.3.0/db_1

Enter the full pathname of the local bin directory: [/usr/local/bin]:
The contents of "dbhome" have not changed. No need to overwrite.
The contents of "oraenv" have not changed. No need to overwrite.
The contents of "coraenv" have not changed. No need to overwrite.

Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.

DBCA创建数据库

在这里插入图片描述
选择高级安装，可以进行更详尽的配置

选择RAC数据库以及管理方式：Admin Managed和Policy Managed。

在这里插入图片描述选择在所有节点上安装数据库

在这里插入图片描述
根据需要填写SID，Global db name以及是CDB还是Non-CDB和PDB个数，名称等。
注：从18c开始，Non-CDB架构已经被废弃。

选择合适的磁盘组用于存储数据库的数据文件及相关日志。是否启用OMG，建议启用。

选择磁盘组
在这里插入图片描述
配置快速恢复区目录，大小，是否启用归档等。

配置内存大小，管理模式，进程数量，字符集，连接模式，是否安装示例数据。
注：对于主机内存大于4G时，无法使用AMM(自动内存管理)，可以在安装后再使用AMM。
在这里插入图片描述
所以对于大于4G内存的主机，可以先选择ASMM，也建议使用ASMM即可。

进程数量从12c开始默认值：300，但是还是不够的，1000起步。

验证

查看RAC集群状态

[grid@RAC1 ~]$ crsctl stat res -t
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ASMNET1LSNR_ASM.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.DATA.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.OCR_MGMT.GHCHKPT.advm
               OFFLINE OFFLINE      rac1                     STABLE
               OFFLINE OFFLINE      rac2                     STABLE
ora.OCR_MGMT.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.chad
               OFFLINE OFFLINE      rac1                     STABLE
               OFFLINE OFFLINE      rac2                     STABLE
ora.helper
               OFFLINE OFFLINE      rac1                     IDLE,STABLE
               OFFLINE OFFLINE      rac2                     STABLE
ora.net1.network
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.ocr_mgmt.ghchkpt.acfs
               OFFLINE OFFLINE      rac1                     STABLE
               OFFLINE OFFLINE      rac2                     STABLE
ora.ons
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.proxy_advm
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.MGMTLSNR
      1        ONLINE  ONLINE       rac2                     169.254.30.172 192.1
                                                             68.3.102,STABLE
ora.asm
      1        ONLINE  ONLINE       rac1                     Started,STABLE
      2        ONLINE  ONLINE       rac2                     Started,STABLE
      3        OFFLINE OFFLINE                               STABLE
ora.cndba.db
      1        ONLINE  ONLINE       rac1                     Open,HOME=/u01/app/o
                                                             racle/product/18.3.0
                                                             /db_1,STABLE
      2        OFFLINE OFFLINE                               Instance Shutdown,ST
                                                             ABLE
ora.cvu
      1        ONLINE  ONLINE       rac2                     STABLE
ora.mgmtdb
      1        ONLINE  ONLINE       rac2                     Open,STABLE
ora.qosmserver
      1        ONLINE  ONLINE       rac2                     STABLE
ora.rac1.vip
      1        ONLINE  ONLINE       rac1                     STABLE
ora.rac2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.rhpserver
      1        OFFLINE OFFLINE                               STABLE
ora.scan1.vip
      1        ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------

查看数据库状态及版本

[oracle@RAC1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 18.0.0.0.0 - Production on Tue Jul 31 15:48:58 2018
Version 18.3.0.0.0
Copyright (c) 1982, 2018, Oracle.  All rights reserved.
Connected to:
Oracle Database 18c Enterprise Edition Release 18.0.0.0.0 - Production
Version 18.3.0.0.0
SQL> select open_mode from v$database;

OPEN_MODE
----------------------------------------
READ WRITE

SQL> show parameter compatible


NAME                                 TYPE
------------------------------------ ----------------------
VALUE
------------------------------
compatible                           string
18.0.0
noncdb_compatible                    boolean
FALSE