問題描述：準備用RedHat6.5安裝
Oracle 12c RAC，系統(tǒng)環(huán)境準備好后發(fā)現(xiàn)，新版本的RedHat網(wǎng)卡配置跟以前不大一樣，總結(jié)問題與解決方法如下：
1、找不到eth0文件
在使用RedHat6.5，新裝好的系統(tǒng)，發(fā)現(xiàn)沒有eth0網(wǎng)卡，默認的第一個網(wǎng)卡是Auto-eth0
[root@rac01 ~]# cat /etc/sysconfig/network-scripts/ifcfg-Auto_eth0 TYPE=Ethernet BOOTPROTO=none IPADDR=10.10.10.110 PREFIX=24 GATEWAY=10.10.10.111 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME=eth0 UUID=86d44060-4579-48cc-b85b-219a206ca37c ONBOOT=yes HWADDR=00:50:56:95:09:76 LAST_CONNECT=1411004329 |
解決方法：
直接更名ifcfg-Auto_eth0文件為eth0，重啟網(wǎng)卡后會發(fā)現(xiàn)，網(wǎng)卡名已經(jīng)變?yōu)閑th0
[root@rac01 ~]# service network restart
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Active connection state: activated
2、ifconfig 發(fā)現(xiàn)網(wǎng)卡服務(wù)名并未更改
[root@rac01 ~]# ifconfig Auto_eth0 Link encap:Ethernet HWaddr 00:50:56:95:09:76 inet addr:10.10.10.110 Bcast:10.10.10.111 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fe95:976/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:484 errors:0 dropped:0 overruns:0 frame:0 TX packets:57 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:40095 (39.1 KiB) TX bytes:6271 (6.1 KiB) |
解決方法：
每次更改RedHat的網(wǎng)卡信息，RedHat會自動的將網(wǎng)卡的MAC地址和對應(yīng)的網(wǎng)卡服務(wù)名關(guān)系記錄在/etc/udev/rules.d/70-persistent-net.rules中，修改里面的對應(yīng)服務(wù)名即可
[root@rac01 ~]# vim /etc/udev/rules.d/70-persistent-net.rules # This file was automatically generated by the /lib/udev/write_net_rules # program, run by the persistent-net-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single # line, and change only the value of the NAME= key. # PCI device 0x15ad:0x07b0 (vmxnet3) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:1e:f6:ad", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" |
修改完成后需重啟一下系統(tǒng)，再次查看網(wǎng)卡服務(wù)名已經(jīng)更改
[root@rac01 ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:50:56:95:09:76 inet addr:10.109.67.81 Bcast:10.109.67.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fe95:976/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:985 errors:0 dropped:0 overruns:0 frame:0 TX packets:61 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:74395 (72.6 KiB) TX bytes:6527 (6.3 KiB) |
3、網(wǎng)卡eth0被刪除后，新加的網(wǎng)卡成了eth1，如何讓從eth0開始
[root@rac01 ~]# ifconfig eth1 Link encap:Ethernet HWaddr 00:50:56:95:09:76 inet addr:10.10.10.110 Bcast:10.10.10.111 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fe95:976/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:830 errors:0 dropped:0 overruns:0 frame:0 TX packets:57 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:63700 (62.2 KiB) TX bytes:6259 (6.1 KiB) eth2 Link encap:Ethernet HWaddr 00:0C:29:1E:F6:B7 inet addr:10.10.10.120 Bcast:10.10.10.111Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe1e:f6b7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:777 errors:0 dropped:0 overruns:0 frame:0 TX packets:11 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:54938 (53.6 KiB) TX bytes:746 (746.0 b) |
解決方法：
同2問題類似，即可以手動的修改70-persistent-net.rules文件，將對應(yīng)的MAC地址與網(wǎng)卡序號改成想要的，也可以直接刪除該文件，重啟系統(tǒng)后，RedHat會自動的創(chuàng)建該文件，并從0開始計數(shù)。
刪除文件，重啟系統(tǒng)
[root@rac01 ~]# mv /etc/udev/rules.d/70-persistent-net.rules /etc/udev/rules.d/7
0-persistent-net.rules.bak
[root@rac01 ~]# reboot
再次查看，會發(fā)現(xiàn)已經(jīng)從eht0開始
[root@rac01 ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:50:56:95:09:76 inet addr:10.109.67.81 Bcast:10.109.67.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fe95:976/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:206 errors:0 dropped:0 overruns:0 frame:0 TX packets:68 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:19282 (18.8 KiB) TX bytes:7215 (7.0 KiB) eth1 Link encap:Ethernet HWaddr 00:0C:29:1E:F6:B7 inet addr:10.109.67.83 Bcast:10.109.67.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe1e:f6b7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:131 errors:0 dropped:0 overruns:0 frame:0 TX packets:11 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8736 (8.5 KiB) TX bytes:746 (746.0 b) |
4、每次重啟網(wǎng)卡，總是提示
Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/9
此時網(wǎng)卡也可以正常通信，這個是因為RedHat自己開發(fā)的NetworkManager管理工具和/etc/sysconfig/network-scripts/ifcfg-ethx配置不同步造成的。
解決方法：
要消除這個提示，請關(guān)閉NetworkManager服務(wù)即可：
[root@rac01 ~]# service network restart Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: Active connection state: activated Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/2 [ OK ] Bringing up interface eth1: Active connection state: activated Active connection path: /org/freedesktop/NetworkManager/ActiveConnection/3 [ OK ] |
關(guān)閉NetworkManager服務(wù)
[root@rac01 ~]# service NetworkManager stop
Stopping NetworkManager daemon: [ OK ]
再次重啟網(wǎng)卡
[root@rac01 ~]# service network restart
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
Bringing up interface eth1: [ OK ]
5、重啟網(wǎng)卡出現(xiàn)提示：
Bringing up interface eth0: Determining if ip address 10.109.67.81 is already in use for device eth0...
[ OK ]
Bringing up interface eth1: Determining if ip address 10.109.67.83 is already in use for device eth1...
[ OK ]
該警告一般是由于網(wǎng)卡解析arp協(xié)議導(dǎo)致的，可在網(wǎng)卡的配置文件中加入ARPCHECK=NO參數(shù)來屏蔽該檢查
[root@rac01 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 TYPE=Ethernet BOOTPROTO=none IPADDR=10.109.67.81 PREFIX=24 GATEWAY=10.109.67.254 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME=eth0 UUID=86d44060-4579-48cc-b85b-219a206ca37c ONBOOT=yes HWADDR=00:50:56:95:09:76 LAST_CONNECT=1411004329 ARPCHECK=no |
再次啟動網(wǎng)卡，一切正常
[root@rac01 ~]# service network restart
Shutting down interface eth0: [ OK ]
Shutting down interface eth1: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
Bringing up interface eth1: [ OK ]