Oracle11gR2RAC单网卡转双网卡绑定配置步骤（第一版）

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2020-01-04

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概述：

RAC 对节点之间的内部通信要求比较高，如果内部节点通信出现问题，可能会导致节点的重启。所以保证 RAC

节点之间的正常也是一项重要的工作。如果只用单网卡来作为节点之间的通信，就不能 100%的保证节点之间

的通信正常，只要这个网卡出现问题，RAC 节点之间的通信就会出现问题。所以这里就提到了网卡绑定，就

是将多个物理网卡绑定到一个虚拟网卡上，由虚拟网卡提供服务。

网卡绑定有几种，常用主备模式和负载均衡模式。

举例说明,假设一个服务器上有 4 块网卡: eth0,eth1,eth2,eth3, 可以将 eth0 和 eth1 绑定成

bond0, 提供公共服务;将 eth2 和 eth3 绑定成 bond1，作为 RAC 的 private ip，作为内部通信。

如果在 RAC 安装之间就进行了绑定, 就可以使用 bond0 和 bond1 来安装 RAC. 如果是在 RAC 安装之后进

行的绑定，还需要修改 RAC IP 的相关参数。

1. 如对 private 网卡进行绑定，修改如下：

# oifcfg getif

--添加 bond1

# oifcfg setif -global bond1/10.168.1.0:cluster_interconnect

--删除 eth1

# oifcfg delif -global eth1

这样原来的 eth1，就修改成对应的绑定地址，如 bond1

2. 如对 public 网络进行绑定，修改如下；

# oifcfg getif

--添加 bond0

# oifcfg setif -global bond0/192.168.1.0:public

--删除 eth1

# oifcfg delif -global eth0

这样原来的 eth0，就修改成对应的绑定地址，如 bond0

3. 另外还需要修改一下 VIP，因为 VIP 里指定的 public 的 IP.

# srvctl modify nodeapps -n dbserver1 -A 192.168.1.11/255.255.255.0/bond0

# srvctl modify nodeapps -n dbserver2 -A 192.168.1.12/255.255.255.0/bond0

注意：这个需要将 eth0 改成 bond0

一．原 RAC 环境信息

数据库：11.2.0.4

操作系统:　Redhat 6.5

# cat /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

#public ip

192.168.230.121 dbserver1.abu.com dbserver1

192.168.230.122 dbserver2.abu.com dbserver2

192.168.230.129 openfilter.abu.com openfilter

#vip ip

192.168.230.123 dbserver1-vip.abu.com dbserver1-vip

192.168.230.124 dbserver2-vip.abu.com dbserver2-vip

#priv ip

10.168.230.121 dbserver1-priv.abu.com dbserver1-priv

10.168.230.122 dbserver2-priv.abu.com dbserver2-priv

10.168.230.123 dbserver1-priv.abu.com dbserver1-priv

10.168.230.124 dbserver2-priv.abu.com dbserver2-priv

#scan ip

192.168.230.125 dbserver-scan.abu.com dbserver-scan

192.168.230.126 dbserver-scan.abu.com dbserver-scan

192.168.230.127 dbserver-scan.abu.com dbserver-scan

#storage ip

10.10.10.121 dbserver1-sun.abu.com dbserver1-sun

10.10.10.122 dbserver2-sun.abu.com dbserver2-sun

10.10.10.129 openfilter-sun.abu.com openfilter-sun

节点一 ip 信息：

[root@dbserver1 ~]# ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet 127.0.0.1/8 scope host lo

inet6 ::1/128 scope host

valid_lft forever preferred_lft forever

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP

qlen 1000

link/ether 00:0c:29:02:dc:13 brd ff:ff:ff:ff:ff:ff

inet 192.168.230.121/16 brd 192.168.255.255 scope global eth0

inet 192.168.230.123/16 brd 192.168.255.255 scope global secondary eth0:1

inet 192.168.230.125/16 brd 192.168.255.255 scope global secondary eth0:2

inet6 fe80::20c:29ff:fe02:dc13/64 scope link

valid_lft forever preferred_lft forever

3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP

qlen 1000

link/ether 00:0c:29:02:dc:1d brd ff:ff:ff:ff:ff:ff

inet 10.10.10.121/24 brd 10.10.10.255 scope global eth1

inet6 fe80::20c:29ff:fe02:dc1d/64 scope link

valid_lft forever preferred_lft forever

4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP

qlen 1000

link/ether 00:0c:29:02:dc:27 brd ff:ff:ff:ff:ff:ff

inet 10.168.230.121/24 brd 10.168.230.255 scope global eth2

inet 169.254.144.25/16 brd 169.254.255.255 scope global eth2:1

inet6 fe80::20c:29ff:fe02:dc27/64 scope link

valid_lft forever preferred_lft forever

5: eth3: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast

master bond1 state UP qlen 1000

link/ether 00:0c:29:02:dc:31 brd ff:ff:ff:ff:ff:ff

inet 192.168.230.121/16 brd 192.168.255.255 scope global eth3

6: eth4: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast

master bond1 state UP qlen 1000

link/ether 00:0c:29:02:dc:3b brd ff:ff:ff:ff:ff:ff

inet 192.168.230.121/16 brd 192.168.255.255 scope global eth4

7: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN

link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff

8: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state

link/ether 00:0c:29:02:dc:31 brd ff:ff:ff:ff:ff:ff

inet 10.168.230.123/24 brd 10.168.230.255 scope global bond1

inet6 fe80::20c:29ff:fe02:dc31/64 scope link

valid_lft forever preferred_lft forever

节点二 ip 信息：

[root@dbserver2 ~]# ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

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