11gR2 Grid Infrastructure Installation prerequisites On LINUX(二)
lt.rp_filter = 1
net.ipv4.conf.default.accept_source_route = 0
kernel.sysrq = 0
kernel.core_uses_pid = 1
net.ipv4.tcp_syncookies = 1
kernel.msgmnb = 65536
kernel.msgmax = 65536
kernel.shmmax = 68719476736
kernel.shmall = 4294967296
net.ipv4.ip_local_port_range = 9000 65500
fs.file-max = 6815744
fs.suid_dumpable = 1
fs.aio-max-nr = 1048576
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
8 DNS的配置
只在节点1做一个DNS服务端即可:
[root@localhost etc]# yum install bind bind-chroot caching-nameserver
# vim /var/named/chroot/etc/named.conf
options {
directory "/var/named";
};
zone "localdomain" in {
type master;
file "localdomain.zone";
};
zone "bdstar.com" IN {
type master;
file "bdstar.com.zone";
};
[root@oradb1 ~]# cd /var/named/chroot/var/named/
[root@oradb1 named]# vim bdstar.com.zone
$TTL 86400
@ IN SOA @ root (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
@ IN NS oradb1.bdstar.com.
oradb1 IN A 10.0.18.12
oradb2 IN A 10.0.18.13
oradb1-vip IN A 10.0.18.120
oradb2-vip IN A 10.0.18.130
oradb-scan IN A 10.0.18.36
[root@oradb1 named]# vim localdomain.zone
$TTL 86400
@ IN SOA localhost root (
42 ; serial (d. adams)
3H ; refresh
15M ; retry
1W ; expiry
1D ) ; minimum
IN NS localhost
oradb1 IN A 10.0.18.12
oradb2 IN A 10.0.18.13
oradb1-vip IN A 10.0.18.120
oradb2-vip IN A 10.0.18.130
oradb-scan IN A 10.0.18.36
[root@oradb1 named]# cat /etc/resolv.conf
nameserver 10.0.18.12
search localdomain bdstar.com
[root@oradb1 named]# service named restart
--测试下是否生效
[root@oradb1 named]# nslookup oradb1.bdstar.com
Server: 10.0.18.12
Address: 10.0.18.12#53
Name: oradb1.bdstar.com
Address: 10.0.18.12
--调整DNS解析
由于oracle强烈建议不要见scan放入到hosts中，这样做的结果是只能有一个SCAN的IP被使用。所以我们调整解析的顺序：
[root@oradb1 log]# vim /etc/nsswitch.conf
hosts: dns files
[root@oradb1 ~]# /sbin/service nscd restart
9 创建grid和oracle用户，在每一个节点操作
groupadd -g 1000 oinstall
groupadd -g 1020 asmadmin
groupadd -g 1021 asmdba
groupadd -g 1022 asmoper
groupadd -g 1300 dba
useradd -u 1101 -g oinstall -G dba,asmdba -c "Oracle Software Owner" oracle
useradd -u 1100 -g oinstall -G asmadmin,asmdba,asmoper,dba -c "Grid Infrastructure Owner" grid
-- 修改oracle grid 密码
passwd oracle
passwd grid
10 创建oracle和grid的Oracle Base 目录
mkdir -p /u01/app/11.2.0/grid
mkdir -p /u01/app/grid
chown -R grid:oinstall /u01
mkdir -p /u01/app/oracle
chown oracle:oinstall /u01/app/oracle
chmod -R 775 /u01
-- Oracle Inventory Directory
mkdir -p /u01/app/oraInventory
chown -R grid:oinsta