1: configure the operating system environment of the new node to be consistent with that of other nodes, including shared storage, patch packages, kernel parameters, and user environment variables.
[Root @ rac3 ~] # Cat/etc/hosts
127.0.0.1 localhost. localdomain localhost
192.168.1.41 rac1.yang.com rac1
192.168.122.41 rac1-priv.yang.com rac1-priv
192.168.1.141 rac1-vip.yang.com rac1-vip 192.168.1.42 rac2.yang.com rac2
192.168.122.42 rac2-priv.yang.com rac2-priv
192.168.1.142 rac2-vip.yang.com rac2-vip 192.168.1.43 rac3.yang.com rac3
192.168.122.43 rac3-priv.yang.com rac3-priv
192.168.1.143 rac3-vip.yang.com rac3-vip [Root @ rac3 ~] # Getenforce
Disabled
[Root @ rac3 ~] # Groupadd oinstall
[Root @ rac3 ~] # Groupadd dba
[Root @ rac3 ~] # Useradd-g oinstall-G dba Oracle
[Root @ rac3 ~] # Echo 'oracle '| passwd -- stdin oracle
Changing password for user oracle.
Passwd: all authentication tokens updated successfully. [Root @ rac3 ~] # Tail/etc/sysctl. conf
Kernel. shmall = 2097152
Kernel. shmmax = 2147483648
Kernel. shmmni = 4096
Kernel. sem = 250 32000 100 128
Fs. file-max = 65536
Net. ipv4.ip _ local_port_range = 1024 65000
Net. core. rmem_default = 262144
Net. core. rmem_max = 262144
Net. core. wmem_default = 262144
Net. core. wmem_max = 262144
[Root @ rac3 ~] # Sysctl-p [Root @ rac3 ~] # Tail-4/etc/security/limits. conf
Oracle soft nproc 2047
Hard nproc 16384
Oracle soft nofile 1024
Oracle hard nofile 65536 [Root @ rac3 ~] # Tail-1/etc/pam. d/login
Session required pam_limits.so
[Root @ rac3 ~] # Tail-1/etc/modprobe. conf
Options hangcheck-timer hangcheck_tick = 30 hangcheck_margin = 180 [Root @ rac3 ~] # Modprobe-v hangcheck-timer
Insmod/lib/modules/2.6.9-89.EL/ kernel/drivers/char/hangcheck-timer.ko hangcheck_tick = 30 hangcheck_margin = 180
2: Configure shared storage on the new node, create related directories, and set user environment variables
[Root @ rac3 ~] # Chown-R oracle. oinstall/u01/
[Root @ rac3 ~] # Su-oracle
[Oracle @ rac3 ~] $ Cat. bash_profile
#. Bash_profile
# Get the aliases and functions
If [-f ~ /. Bashrc]; then
.~ /. Bashrc
Fi
PATH =/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin: /usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin
Export EDITOR = vim
Export ORACLE_SID = racdb3
Export ORACLE_BASE =/u01/app/oracle
Export ORACLE_HOME = $ ORACLE_BASE/product/10.2.0/db_1
Export ORA_CRS_HOME = $ ORACLE_BASE/product/10.2.0/crs_1
Export LD_LIBRARY_PATH =/lib
Alias sqlplus = '/usr/local/rlwrap/bin/rlwrap sqlplus'
Alias rman = '/usr/local/rlwrap/bin/rlwrap rman'
Export NLS_DATE_FORMAT = 'yyyy-MM-DD HH24: MI: ss'
Export NLS_LANG = american_america.UTF8
Export PATH = $ ORACLE_HOME/bin: $ ORA_CRS_HOME/bin: $ PATH
Umask 022
[Oracle @ rac3 ~] $ Mkdir-p $ ORACLE_BASE/admin
[Oracle @ rac3 ~] $ Mkdir-p $ ORACLE_HOME
[Oracle @ rac3 ~] $ Mkdir-p $ ORA_CRS_HOME
3: Configure ssh equality for each node
[Oracle @ rac3 ~] $ Ssh-keygen-t dsa
[Oracle @ rac3 ~] $ Ssh-keygen-t rsa
Use the ssh-copy-id command to import the public key of the rac3 node to the/home/oracle/. ssh/authorized_keys file on rac1 and rac2. The steps are not described in detail;
Finally, you need to use oracle users on three nodes for mutual ssh Login Without entering a password. |
