Preparations before installing Oracle 11g RAC in Linux

Preparations before installing Oracle 11g RAC in Linux

Installation environment
Operating System: RHEL6.2 64bit
Oracle Database Version: 11.2.0.3
Oracle Grid: 11.2.0.3
 
Software: RHEL6.2 64bit, linux_11gR2_grid, linux_11gR2_database
 
Configure rac ip

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[Root @ host1 ~] # Vim/etc/sysconfig/network-scripts/ifcfg-eth1

Add the following content:
 
DEVICE = eth1
# BOOTPROTO = dhcp
ONBOOT = yes
HWADDR = 00: 0c: 29: df: ed: d6
IPADDR = 10.0.0.101
NETMASK = 255.255.255.0

[Root @ host1 ~] # Vim/etc/hosts
 
Add the following content:
 
127.0.0.1 localhost. localdomain localhost
: 1 localhost6.localdomain6 localhost6
# Public Ip
192.168.80.101 rac1
192.168.80.102 rac2
# Private IP
10.0.0.101 rac1-pri
10.0.0.102 rac2-pri
# Public Virtual IP (VIP)
192.168.80.201 rac1-vip
192.168.80.202 rac2-vip
# Scan-ip
192.168.80.100

[Root @ host1 ~] # Service netowrk restart
 
The second node performs the same operation

Create 11g RAC users and groups

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1. Create grid users and groups
 
[Root @ host1 ~] # Groupadd-g 1000 oinstall
[Root @ host1 ~] # Groupadd-g 1200 asmadmin
[Root @ host1 ~] # Groupadd-g 1201 asmdba
[Root @ host1 ~] # Groupadd-g 1202 asmoper
[Root @ host1 ~] # Useradd-g oinstall-G asmadmin, asmdba, asmoper-d/home/grid-s/bin/bash grid
 
[Root @ host1 ~] # Passwd grid

2. Create oracle users and groups
 
[Root @ host1 ~] # Groupadd-g 1300 dba
[Root @ host1 ~] # Groupadd-g 1301 running
[Root @ host1 ~] # Useradd-g oinstall-G dba, role, asmdba-d/home/oracle-s/bin/bash oracle
 
[Root @ host1 ~] # Passwd oracle
 
The second node performs the same operation

Configure oracle, equivalent to ssh for grid users

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1. The first node
 
[Oracle @ host1 ~] $ Pwd
/Home/oracle
[Oracle @ host1 ~] $ Mkdir./ssh
 
[Oracle @ host1 ~] $ Chmod 700./ssh
 
[Oracle @ host1 ~] $ Ssh-keygen-t rsa
 
[Oracle @ host1 ~] $ Ssh-keygen-t dsa
 
[Oracle @ host1 ~] $ Cat ~ /. Ssh/id_rsa.pub> ~ /. Ssh/authorized_keys
[Oracle @ host1 ~] $ Cat ~ /. Ssh/id_dsa.pub> ~ /. Ssh/authorized_keys

2. Second Node
 
[Root @ host2 ~] # Su-oracle
[Oracle @ host2 ~] $ Mkdir./ssh
 
[Oracle @ host2 ~] $ Chmod 700./ssh
 
[Oracle @ host2 ssh] $ ssh-keygen-t rsa
 
[Oracle @ host2 ssh] $ ssh-keygen-t dsa

3. Return the first vertex.
 
[Oracle @ host1 ~] $ Ssh rac2 cat ~ /. Ssh/id_rsa.pub> ~ /. Ssh/authorized_keys
 
[Oracle @ host1 ~] $ Ssh rac2 cat ~ /. Ssh/id_dsa.pub> ~ /. Ssh/authorized_keys
 
[Oracle @ host1 ~] $ Scp ~ /. Ssh/authorized_keys rac2 :~ /. Ssh/authorized_keys

4. Verify
 
[Oracle @ host2. ssh] $ vim run. sh
 
Write the following content:
 
Ssh rac1 date
Ssh rac2 date
Ssh rac1-pri date
Ssh rac2-pri date

5. Repeat the grid user configuration
 
The second node performs the same operation

Partition shared Disk

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1. Partition after adding a shared Disk
 
View disk status
 
[Root @ host1 ~] # Fdisk-l
 
Partition target disk
 
[Root @ host1 ~] # Fdisk/dev/sdb
 
Verify to node 2
 
[Root @ host2 ~] # Fdisk-l

Create a bare Device

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Ps: a bare device is also called a raw partition. It is a special character device that is not formatted and not read by Unix/Linux Through the file system. A bare device can be bound to either a partition or a disk.
 
[Root @ host1 ~] # Ls-trl/dev/sd *
 
Edit a device file
 
[Root @ host1 ~] # Vim/etc/udev/rules. d/60-raw.rules
 
Add the following content:
 
ACTION = "add", KERNEL = "sdb1", RUN + = "/bin/raw/dev/raw/raw1% N"
ACTION = "add", KERNEL = "sdc1", RUN + = "/bin/raw/dev/raw/raw2% N"
KERNEL = "raw [1-2]", OWNER = "grid", GROUP = "asmadmin", MODE = "0660"

Start the service
 
[Root @ host1 ~] # Start_udev
Starting udev: [OK]
[Root @ host1 ~] # Raw-qa
/Dev/raw/raw1: bound to major 8, minor 17
/Dev/raw/raw2: bound to major 8, minor 33

[Root @ host1 ~] # Ls-trl/dev/raw
Total 0
Crw-rw ---- 1 grid asmadmin 162, 2 Jun 2 raw2
Crw-rw ---- 1 grid asmadmin 162, 1 Jun 2 raw1

Perform the same operation on the second node

Use LVM to create a/u01 mount point

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View physical volume information
 
[Root @ host1 ~] # Pvdisplay
 
View volume group information
 
[Root @ host1 ~] # Vgdisplay
 
View logical volume information
 
[Root @ host1 ~] # Pvdisplay
 
Create logical volume
 
[Root @ host1 ~] # Lvcreate-L 30G-n LogVol06 VolGroup00
 
Format the logical volume in ext3 format
 
[Root @ host1 ~] # Mkfs. ext3/dev/VolGroup00/LogVol06
 
Create the u01 directory in the root directory
 
[Root @ host1 ~] # Mkdir/u01
 
Mount the u01 directory
 
[Root @ host1 ~] # Mount/dev/VolGroup00/LogVol06/u01
 
You also need to modify the/etc/fstab file to set automatic mounting upon startup.
 
[Root @ host1 ~] # Vim/etc/fstab
 
Add the following content:
 
/Dev/VolGroup00/LogVol06/u01 ext3 defaults 1 2

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