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[常规管理] Oracle 11.2.0.3 RAC 安装完后网卡信息疑问，多了一个eth1:1接口

1^#

发表于 2013-1-6 11:04:08 | 查看: 6800| 回复: 6

我新安装了11.2.0.3RAC，hosts如下，
[root@YCNODE1 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1             localhost.localdomain localhost
::1          localhost6.localdomain6 localhost6
172.16.93.11          YCNODE1.YCDEMO.COM YCNODE1
172.16.93.12          YCNODE2.YCDEMO.COM YCNODE2

172.16.93.8          YCNODE1-VIP.YCDEMO.COM YCNODE1-VIP
172.16.93.9          YCNODE2-VIP.YCDEMO.COM YCNODE2-VIP

192.16.93.11          YCNODE1-PRIV.YCDEMO.COM YCNODE1-PRIV
192.16.93.12          YCNODE2-PRIV.YCDEMO.COM YCNODE2-PRIV

172.16.93.10          YCRAC-SCAN.YCDEMO.COM YCRAC-cluster

显示网络信息，怎么多了一个eth1:1接口？
[root@YCNODE1 ~]# ifconfig
eth0    Link encap:Ethernet  HWaddr 00:25:B5:99:00:08
      inet addr:172.16.93.11  Bcast:172.16.93.31  Mask:255.255.255.224
      inet6 addr: fe80::225:b5ff:fe99:8/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:15627306 errors:0 dropped:0 overruns:0 frame:0
      TX packets:17302943 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:8952586849 (8.3 GiB)  TX bytes:14145938214 (13.1 GiB)

eth0:1 Link encap:Ethernet  HWaddr 00:25:B5:99:00:08
      inet addr:172.16.93.8  Bcast:172.16.93.31  Mask:255.255.255.224
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:2 Link encap:Ethernet  HWaddr 00:25:B5:99:00:08
      inet addr:172.16.93.10  Bcast:172.16.93.31  Mask:255.255.255.224
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth1    Link encap:Ethernet  HWaddr 00:25:B5:99:00:09
      inet addr:192.16.93.11  Bcast:192.16.93.255  Mask:255.255.255.0
      inet6 addr: fe80::225:b5ff:fe99:9/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:109634955 errors:0 dropped:0 overruns:0 frame:0
      TX packets:92247613 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:96273293509 (89.6 GiB)  TX bytes:70988483342 (66.1 GiB)

eth1:1 Link encap:Ethernet  HWaddr 00:25:B5:99:00:09
      inet addr:169.254.248.14  Bcast:169.254.255.255  Mask:255.255.0.0
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

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:16436  Metric:1
      RX packets:19886911 errors:0 dropped:0 overruns:0 frame:0
      TX packets:19886911 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0
      RX bytes:14233170965 (13.2 GiB)  TX bytes:14233170965 (13.2 GiB)

[root@YCNODE1 ~]#

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西西梅丽

2^#

发表于 2013-1-6 11:16:22

谢谢群友的回答：
福州-斩月(11938XXXX)  11:10:25

--11gR2起Grid infrastructure引入资源ora.cluster_interconnect.haip，不需要第三方技术便可实现redundant interconnect，最多支持4个private network，提供load balance & failover功能；
--Gird会自动选取169.254.*.*作为HAIP address，该功能默认启动；
--HAIP数量由grid在第一个节点启动时active private network数目决定的，若想改变则需要所有节点重启；
--不支持windows平台，集群运行时不能停止HAIP
Redundant Interconnect without any 3rd-party IP failover technology (bond, IPMP or similar) is supported natively by Grid Infrastructure starting from 11.2.0.2.  Multiple private network adapters can be defined either during the installation phase or afterward using the oifcfg.  Oracle Database, CSS, OCR, CRS, CTSS, and EVM components in 11.2.0.2 employ it automatically.

Grid Infrastructure can activate a maximum of four private network adapters at a time even if more are defined. The ora.cluster_interconnect.haip resource will start one to four link local  HAIP on private network adapters for interconnect communication for Oracle RAC, Oracle ASM, and Oracle ACFS etc.

Grid automatically picks free link local addresses from reserved 169.254.*.* subnet for HAIP. According to RFC-3927, link local subnet 169.254.*.* should not be used for any other purpose. With HAIP, by default, interconnect traffic will be load balanced across all active interconnect interfaces, and corresponding HAIP address will be failed over transparently to other adapters if one fails or becomes non-communicative. .

The number of HAIP addresses is decided by how many private network adapters are active when Grid comes up on the first node in the cluster .  If there's only one active private network, Grid will create one; if two, Grid will create two; and if more than two, Grid will create four HAIPs. The number of HAIPs won't change even if more private network adapters are activated later, a restart of clusterware on all nodes is required for the number to change, however, the newly activated adapters can be used for fail over purpose.

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