ORACLE 12C RAC INSTALLATION

Perform the below Manual Setup to complete the basic prerequisites

Index

Disabling Firewall:

service iptables stop
chkconfig iptables off

Add or amend the following lines to the "/etc/sysctl.conf" file:

fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
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
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

Run the following command to change the current kernel parameters.
/sbin/sysctl -p

Add the following lines to the /etc/security/limits.conf file:

oracle soft nofile 1024
oracle hard nofile 65536
oracle soft nproc 16384
oracle hard nproc 16384
oracle soft stack 10240
oracle hard stack 32768
oracle hard memlock 134217728
oracle soft memlock 134217728

Configure /etc/hosts file:

#Public IP

10.201.33.38

10.201.33.39

AUS-LNDBASMT-001.wiley.com

AUS-LNDBASMT-002.wiley.com

AUS-LNDBASMT-001

AUS-LNDBASMT-002

#Virtual IP

10.201.33.70

10.201.33.71

AUS-LNDBASMT-001-vip.wiley.com

AUS-LNDBASMT-002-vip.wiley.com

AUS-LNDBASMT-001-vip

AUS-LNDBASMT-002-vip

#Private IP

10.201.224.125

10.201.224.126

AUS-LNDBASMT-001-priv.wiley.com

AUS-LNDBASMT-002-priv.wiley.com

AUS-LNDBASMT-001-priv

AUS-LNDBASMT-002-priv

#Scan

10.201.33.72

10.201.33.73

10.201.33.74

AUS-LNDBASMT-scan.wiley.com

AUS-LNDBASMT-SCAN

Create User & Group:

uid=510(oracle) gid=510(oinstall) groups=510(oinstall),512(dba),1011(sapinst),1013(asmoper),1014(asmadmin),1015(asmdba),1016(oper)

groupadd asmoper
groupadd asmadmin
groupadd asmdba
groupadd oper

useradd oracle
passwd oracle
usermod -g oinstall oracle
usermod -G dba,asmoper,asmadmin,asmdba,oper oracle

Network Configuration:

cat /etc/sysconfig/network
# Recommended value for NOZEROCONF
NOZEROCONF=yes

Install RPM’s For ASM:

kmod-oracleasm-2.0.8-17.el7.x86_64
oracleasmlib-2.0.12-1.el7.x86_64.rpm
oracleasm-support-2.1.8-3.el7.x86_64.rpm

Configure Oracleasm:

[root@CAR-TEST-01 ~]# oracleasm configure -i
Configuring the Oracle ASM library driver.

This will configure the on-boot properties of the Oracle ASM library
driver. The following questions will determine whether the driver is
loaded on boot and what permissions it will have. The current values
will be shown in brackets (‘[]’). Hitting <ENTER> without typing an
answer will keep that current value. Ctrl-C will abort.

Default user to own the driver interface []: oracle
Default group to own the driver interface []: dba
Scan for Oracle ASM disks on boot (y/n) [y]: y
Writing Oracle ASM library driver configuration: done

oracleasm start

Disk Creation in ASM:

[root@CAR-TEST-01 ~]# fdisk /dev/sdf
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p):
Using default response p
Partition number (2-4, default 2): d
Partition number (2-4, default 2): 2
No free sectors available

Command (m for help): d
Selected partition 1
Partition 1 is deleted

Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 1):
First sector (2048-20971519, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-20971519, default 20971519):
Using default value 20971519

Partition 1 of type Linux and of size 10 GiB is set

Command (m for help): w
The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

[root@CAR-TEST-01 ~]# /etc/init.d/oracleasm status
Checking if ASM is loaded: yes
Checking if /dev/oracleasm is mounted: yes

[root@CAR-TEST-01 ~]# /etc/init.d/oracleasm createdisk DATAVOL1 /dev/sdf1
Marking disk “DATAVOL1” as an ASM disk: [ OK ]
[root@CAR-TEST-01 ~]# /etc/init.d/oracleasm listdisks
DATAVOL1

[root@CAR-TEST-01 ~]# /etc/init.d/oracleasm createdisk OCRVOT1 /dev/sdk2
Marking disk “DATAVOL2” as an ASM disk: [ OK ]
[root@CAR-TEST-01 ~]#
[root@CAR-TEST-01 ~]#
[root@CAR-TEST-01 ~]# /etc/init.d/oracleasm listdisks
DATAVOL1
DATAVOL2
Like this way needs to create rest of the disks.