Redundant Interconnect with Highly Available IP (HAIP) 简介(一)

安装后，HAIP地址自动设置为169.254.*.*,这个地址不可以手动设置。HAIP 最少为１个，最多为４个(1块网卡，1个HAIP;2块网卡，2个HAIP; 3块及以上，4个HAIP), 均匀的分布在私网的网卡上。

案例：
1. 查看HAIP资源状态
$ crsctl stat res -t -init
NAME
TARGET STATE SERVER STATE_DETAILS Cluster Resources
-------------------------------------------------------------------------------------------------
ora.cluster_interconnect.haip
ONLINE ONLINE node2 1

2.查看HAIP地址和分布情况。
#ifconfig -a
eth1 Link encap:Ethernet HWaddr 00:0C:29:4B:B7:66
inet addr:192.168.254.32 Bcast:192.168.254.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe4b:b766/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
......

eth1:1 Link encap:Ethernet HWaddr 00:0C:29:4B:B7:66
inet addr:169.254.31.199 Bcast:169.254.127.255 Mask:255.255.128.0 <=====HAIP address one.
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:193 Base address:0x1800

eth2 Link encap:Ethernet HWaddr 00:0C:29:4B:B7:70
inet addr:192.168.254.33 Bcast:192.168.254.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe4b:b770/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
......

eth2:1 Link encap:Ethernet HWaddr 00:0C:29:4B:B7:70
inet addr:169.254.185.222 Bcast:169.254.255.255 Mask:255.255.128.0 <=====HAIP address two.
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:169 Base address:0x1880

haip均匀的分布在两个私网网卡上。