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更新时间:2024-07-04 GMT+08:00
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配置裸金属服务器上的网卡IP(集群)

操作场景

SAP HANA集群的内部通信平面,在申请裸金属服务器时无法自动创建,需要手动配置该平面网卡的IP地址,满足SAP系统的部署要求。

操作步骤

  1. “root”用户,使用密钥登录裸金属服务器。
  2. 查询网卡信息。

    ip link

    返回信息示例如下:

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
        link/ether 38:4c:4f:89:55:8d brd ff:ff:ff:ff:ff:ff
    5: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
        link/ether 38:4c:4f:89:55:8e brd ff:ff:ff:ff:ff:ff
    6: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP mode DEFAULT group default 
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff

  3. 设置udev规则。

    执行以下命令创建“80-persistent-net.rules”文件。

    cp /etc/udev/rules.d/70-persistent-net.rules /etc/udev/rules.d/80-persistent-net.rules

    2中查询到的,且“80-persistent-net.rules”中未体现的网卡MAC地址和名称,写入该文件中,使得裸金属服务器重启复位后,网卡名称和顺序不会发生改变。

    网卡的MAC地址和名称中的字母,请使用小写字母。

    vim /etc/udev/rules.d/80-persistent-net.rules

    修改后的示例如下:

    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="38:4c:4f:29:0b:e0", NAME="eth0"
    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="38:4c:4f:29:0b:e1", NAME="eth1"
    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="38:4c:4f:89:55:8d", NAME="eth2"
    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="38:4c:4f:89:55:8e", NAME="eth3"

    修改完成后,保存并退出。

  4. 查询网卡的IP信息。

    ifconfig

    返回信息示例如下,其中的“bond0”为申请裸金属服务器时自动分配的网卡平面IP地址。

    bond0     Link encap:Ethernet  HWaddr FA:16:3E:3D:1C:E0  
              inet addr:10.0.3.2  Bcast:10.0.3.255  Mask:255.255.255.0
              inet6 addr: fe80::f816:3eff:fe3d:1ce0/64 Scope:Link
              UP BROADCAST RUNNING MASTER MULTICAST  MTU:8888  Metric:1
              RX packets:852 errors:0 dropped:160 overruns:0 frame:0
              TX packets:1121 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:125429 (122.4 Kb)  TX bytes:107221 (104.7 Kb)
    
    eth0      Link encap:Ethernet  HWaddr FA:16:3E:3D:1C:E0  
              UP BROADCAST RUNNING SLAVE MULTICAST  MTU:8888  Metric:1
              RX packets:428 errors:0 dropped:10 overruns:0 frame:0
              TX packets:547 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:64670 (63.1 Kb)  TX bytes:50132 (48.9 Kb)
    
    eth1      Link encap:Ethernet  HWaddr FA:16:3E:3D:1C:E0  
              UP BROADCAST RUNNING SLAVE MULTICAST  MTU:8888  Metric:1
              RX packets:424 errors:0 dropped:7 overruns:0 frame:0
              TX packets:574 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000 
              RX bytes:60759 (59.3 Kb)  TX bytes:57089 (55.7 Kb)
    
    lo        Link encap:Local Loopback  
              inet addr:127.0.0.1  Mask:255.0.0.0
              inet6 addr: ::1/128 Scope:Host
              UP LOOPBACK RUNNING  MTU:65536  Metric:1
              RX packets:8 errors:0 dropped:0 overruns:0 frame:0
              TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:0 
              RX bytes:520 (520.0 b)  TX bytes:520 (520.0 b)

  5. 查询组成bond的网卡的名称。

    已组成bond且在使用中的网卡,不能用于内部通信平面,因此需要查询相应的网卡名称。

    cd /etc/sysconfig/network

    vi ifcfg-bond0

    返回信息示例如下,可见“bond0”“eth0”“eth1”组成。

    BONDING_MASTER=yes
    TYPE=Bond
    STARTMODE=auto
    BONDING_MODULE_OPTS="mode=4 xmit_hash_policy=layer3+4 miimon=100"
    NM_CONTROLLED=no
    BOOTPROTO=dhcp
    DEVICE=bond0
    USERCONTRL=no
    LLADDR=fa:16:3e:3d:1c:e0
    BONDING_SLAVE1=eth1
    BONDING_SLAVE0=eth0

    查询完成后,退出。

  6. 查询所有网卡的状态。

    ip link

    返回信息示例如下:

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
        link/ether 38:4c:4f:89:55:8d brd ff:ff:ff:ff:ff:ff
    5: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state DOWN mode DEFAULT group default qlen 1000
        link/ether 38:4c:4f:89:55:8e brd ff:ff:ff:ff:ff:ff
    6: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP mode DEFAULT group default 
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff

  7. 将所有状态为“qdisc mq state DOWN”的网卡,设置为“qdisc mq state UP”,示例中为“eth2”“eth3”

    ip link set eth2 up

    ip link set eth3 up

  8. 重新查询网卡的状态。

    ip link

    返回信息示例如下:

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP mode DEFAULT group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
        link/ether 38:4c:4f:89:55:8d brd ff:ff:ff:ff:ff:ff
    5: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
        link/ether 38:4c:4f:89:55:8e brd ff:ff:ff:ff:ff:ff
    6: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP mode DEFAULT group default 
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff

  9. 查看8中对应的网卡的状态,获取状态为“qdisc mq state UP”的网卡名称。

    只有状态为“qdisc mq state UP”且未被使用过的网卡,才能组成bond,示例中为“eth2”“eth3”

    “eth2”的LLADR为“38:4c:4f:89:55:8d”“eth3”的LLADR为“38:4c:4f:89:55:8e”

  10. 创建“eth2”“eth3”网卡的配置文件。

    可通过复制已有网卡配置文件的方式快速创建。

    cp ifcfg-eth0 ifcfg-eth2

    cp ifcfg-eth1 ifcfg-eth3

  11. 修改“eth2”“eth3”网卡的配置文件

    vi ifcfg-eth2

    vi ifcfg-eth3

    “eth2”网卡配置文件的修改示例如下。

    其中,参数参数“MTU”配置为“8888”,,“BOOTPROTO”需要配置为“STATIC”,参数“DEVICE”“LLADDR”根据实际需要填写。

    STARTMODE=auto
    MTU=8888
    NM_CONTROLLED=no
    BOOTPROTO=STATIC
    DEVICE=eth2
    USERCONTRL=no
    LLADDR=38:4c:4f:89:55:8d
    TYPE=Ethernet

    “eth3”网卡配置文件的修改示例如下:

    STARTMODE=auto
    MTU=8888
    NM_CONTROLLED=no
    BOOTPROTO=STATIC
    DEVICE=eth3
    USERCONTRL=no
    LLADDR=38:4c:4f:89:55:8e
    TYPE=Ethernet

    修改完成后,保存并退出。

  12. “eth2”“eth3”组bond,假设为“bond1”

    创建ifcfg-bond1文件并修改配置。

    cp ifcfg-bond0 ifcfg-bond1

    vi ifcfg-bond1

    “bond1”网卡配置文件的修改示例如下。

    其中,参数“MTU”配置为“8888”“BONDING_MODULE_OPTS”配置为“mode=1 miimon=100”“BOOTPROTO”需要配置为“STATIC”“DEVICE”“BONDING_SLAVE1”“BONDING_SLAVE0”“IPADDR”“NETMASK”“NETWORK”根据实际需要填写,“LLADDR”配置为参数“BONDING_SLAVE1”对应网卡的LLADDR。

    BONDING_MASTER=yes
    TYPE=Bond
    MTU=8888
    STARTMODE=auto
    BONDING_MODULE_OPTS="mode=1 miimon=100"
    NM_CONTROLLED=no
    BOOTPROTO=STATIC
    DEVICE=bond1
    USERCONTRL=no
    LLADDR=38:4c:4f:89:55:8d
    BONDING_SLAVE1=eth2
    BONDING_SLAVE0=eth3
    IPADDR=10.0.2.2
    NETMASK=255.255.255.0
    NETWORK=10.0.2.0

    修改完成后,保存并退出。

  13. 使配置文件生效。

    1. 创建临时目录,并将网络配置文件复制到该目录下。

      mkdir /opt/tmp/

      mkdir /opt/tmp/xml

      cp /etc/sysconfig/network/ifcfg* /opt/tmp/

      cp /etc/sysconfig/network/config /opt/tmp/

      cp /etc/sysconfig/network/dhcp /opt/tmp/

    2. 停止待组成bond1的网卡。

      ip link set eth2 down

      ip link set eth3 down

    3. 将网卡配置文件转换成操作系统可辨识的配置文件。

      /usr/sbin/wicked --log-target=stderr --log-level=debug3 --debug all convert --output /opt/tmp/xml /opt/tmp/

    4. 重新启用待组成bond1的网卡。

      ip link set eth2 up

      /usr/sbin/wicked --log-target=stderr --log-level=debug3 --debug all ifup --ifconfig /opt/tmp/xml/eth2.xml eth2

      ip link set eth3 up

      /usr/sbin/wicked --log-target=stderr --log-level=debug3 --debug all ifup --ifconfig /opt/tmp/xml/eth3.xml eth3

      /usr/sbin/wicked --log-target=stderr --log-level=debug3 --debug all ifup --ifconfig /opt/tmp/xml/bond1.xml bond1

  14. 重新查询IP地址信息,可查看到IP地址已分配。

    ip addr show

    示例如下:

    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond0 state UP group default qlen 1000
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
    4: eth2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond1 state UP group default qlen 1000
        link/ether 38:4c:4f:89:55:8d brd ff:ff:ff:ff:ff:ff
    5: eth3: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 8888 qdisc mq master bond1 state UP group default qlen 1000
        link/ether 38:4c:4f:89:55:8d brd ff:ff:ff:ff:ff:ff
    6: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP group default 
        link/ether fa:16:3e:3d:1c:e0 brd ff:ff:ff:ff:ff:ff
        inet 10.0.3.2/24 brd 10.0.3.255 scope global bond0
           valid_lft forever preferred_lft forever
        inet6 fe80::f816:3eff:fe3d:1ce0/64 scope link 
           valid_lft forever preferred_lft forever
    7: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 8888 qdisc noqueue state UP group default 
        link/ether 38:4c:4f:89:55:8d brd ff:ff:ff:ff:ff:ff
        inet 10.0.2.2/24 brd 10.0.2.255 scope global bond1
           valid_lft forever preferred_lft forever
        inet6 fe80::3a4c:4fff:fe29:b36/64 scope link 
           valid_lft forever preferred_lft forever

  15. 删除创建的临时目录。

    cd /opt

    rm -rf tmp/

  16. 参见上述步骤,完成其他裸金属服务器上的配置。

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