Centos7.5+ASM+RAC

wget http://public-yum.oracle.com/repo/OracleLinux/OL7/latest/x86_64/getPackage/oracleasm-support-2.1.11-2.el7.x86_64.rpm
wget http://download.oracle.com/otn_software/asmlib/oracleasmlib-2.0.12-1.el7.x86_64.rpm
yum install -y kmod-oracleasm
rpm -ivh oracleasmlib-2.0.12-1.el7.x86_64.rpm oracleasm-support-2.1.11-2.el7.x86_64.rpm

2、oracle依赖包

yum install -y binutils compat-libcap1 compat-libstdc++-33.i686 compat-libstdc++-33.x86_64 gcc gcc-c++ glibc.i686 glibc.x86_64 glibc-devel.i686 glibc-devel.x86_64 ksh libgcc.i686 libgcc.x86_64 libstdc++.i686 libstdc++.x86_64 libstdc++-devel.i686 libstdc++-devel.x86_64 libaio.i686 libaio.x86_64 libaio-devel.i686 libaio-devel.x86_64 make sysstat elfutils-libelf-devel

四、创建目录、组、用户

1、创建目录

mkdir -p /u01/12.2.0/grid
mkdir -p /u01/app/grid
mkdir -p /u01/app/oracle
chown -R grid:oinstall /u01
chown -R oracle:oinstall /u01/app/oracle
chmod -R 775 /u01

2、创建用户

groupadd oinstall
groupadd dba
groupadd asmdba
groupadd asmadmin
groupadd asmoper
groupadd oper
groupadd backupdba
groupadd dgdba
groupadd kmdba
useradd -g oinstall -G asmadmin,asmdba,asmoper,oper,dba grid
useradd -g oinstall -G dba,asmdba,oper,backupdba,dgdba,kmdba oracle
#设置用户密码
passwd grid
passwd oracle

3、设置环境变量

vim /home/grid/.bash_profile
export NLS_LANG=AMERICAN_AMERICA.UTF8
export LANG=en_US.UTF-8
export ORACLE_HOME=/u01/12.2.0/grid
export ORACLE_SID=+ASM
export PATH=$ORACLE_HOME/bin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/bin:/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin/
export CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
vim /home/oracle/.bash_profile
export NLS_LANG=AMERICAN_AMERICA.UTF8
export LANG=en_US.UTF-8
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.2.0/dbhome_1
export ORACLE_SID=orcl
export ORACLE_TERM=xterm
export PATH=/usr/sbin:$PATH
export PATH=$ORACLE_HOME/bin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/bin:/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin/
export CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

五、配置内核参数

vim /etc/pam.d/login
session required pam_limits.so
vim /etc/security/limits.conf
oracle soft nproc 16384
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
oracle soft stack 10240
oracle hard stack 32768
grid soft nofile 1024
grid hard nofile 65536
grid soft nproc 16384
grid hard nproc 16384
grid soft stack 10240
grid hard stack 32768
vim /etc/sysctl.conf
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 4294967296
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
vim /etc/fstab
tmpfs /dev/shm tmpfs defaults,size=12G 0 0
tmpfs /run tmpfs defaults,size=12G 0 0
tmpfs /sys/fs/cgroup tmpfs defaults,size=12G 0 0

六、配置ASM属性

oracleasm configure -i
Default user to own the driver interface []: grid
Default group to own the driver interface []: oinstall
Start Oracle ASM library driver on boot (y/n) [n]: y
Scan for Oracle ASM disks on boot (y/n) [y]: y
Writing Oracle ASM library driver configuration: done

七、创建分区

注：在做以下步骤前可先重启服务器，使前面的设置生效

#重启
reboot
#查看磁盘
fdisk -l
#分区/dev/sdb1,/dev/sdc1, /dev/sdd1
fdisk /dev/sdb
oracleasm createdisk myasm01 /dev/sdb1
oracleasm createdisk myasm02 /dev/sdc1
oracleasm createdisk myasm03 /dev/sdd1
oracleasm scandisks
oracleasm listdisks

八、安装

1、安装grid（可选）

通过OUI安装，略过

2、安装oracle

通过OUI安装，略过

九、启动关闭

注：先关数据库，后关asm。先启asm，后启数据库

1、数据库

oracle>sqlplus / as sysdba
shutdown immediate #关闭
startup #启动

2、ASM

grid>sqlplus / as sysasm
shutdown immediate
startup

3、通过srvctl启停

srvctl start|stop|enable asm
srvctl start|stop database -db orcl

4、EM

oracle>sqlplus / as sysdba
#启动
exec DBMS_XDB_CONFIG.SETHTTPPORT(5502);
exec DBMS_XDB_CONFIG.SETHTTPSPORT(5500);
#关闭
exec DBMS_XDB_CONFIG.SETHTTPSPORT(0);
exec DBMS_XDB_CONFIG.SETHTTPPORT(0);
#查看端口
SELECT dbms_xdb_config.gethttpsport FROM DUAL;
SELECT dbms_xdb_config.gethttpport FROM DUAL;