1 HA IP地址类型

IP类型	标识	全称	说明	配置
boot ip	boot_ip	真实IP，物理IP	boot一般在计算机中指的是引导。这里指的是，操作系统装入的IP地址，即物理网卡IP地址。	配置网卡
Persistent IP	per_ip	永久IP	Persistent 是持续的意思。这里是指一直在一台服务器上的IP地址。	配置Persistent IP
Service IP	ser_ip	服务IP，浮动IP	Service是提供服务的意思。这里指应用访问的IP地址。	配置Service IP

2HA IP地址设置原则

序号	原则
1	HA集群每台服务器配置两个物理网卡，即使用两个物理网卡IP作为boot_IP。
2	HA集群每台服务器配置一个永久IP，即per_IP。依附在其中一个boot_IP。
3	HA集群只有一个服务IP，即ser_ip。存在于集群的某台服务器。
4	服务IP所在的服务器，同样依附在其中一个boot_IP上，且可与永久IP分布在不同的boot_ip。
5	HA集群服务器的一个boot_IP网卡down掉后，依附其上的per_IP和ser_IP会切换至另一个up的网卡。
6	A集群服务器的两个boot_IP网卡都down掉后，per_IP将down掉，ser_IP才会切换至备机。

3 HA网卡日常查看方法

HA 集群配置规范，hosts别名不存在异议，且不存在多个物理网卡的情况下，一般可用下列方法确认网卡。

3.1 查看hosts文件

1、查看主机名对应的IP地址。
2、查看节点名对应的IP地址。

$ cat /etc/hosts
100.1.0.1       test1_boot1  test1
100.1.0.2       test2_boot1  test2
192.168.0.1     test1_boot2
192.168.0.2     test2_boot2
10.1.0.1        test1_svc
10.1.0.2        test2_svc
10.1.0.5        test1_per
10.1.0.6        test2_per

说明：一般**_per为真实IP，**_svc为服务IP，或称serviceIP

3.2 查看网卡和IP

$ ifconfig -a
$ netstat -in

4 通过命令方式直接查看

1、通过以下方式可以查看

$ cat /etc/hosts
196.141.100.110       tredb01_boot1  tredb01
196.141.100.100       tredb02_boot1  tredb02
196.141.10.110     tredb01_boot2
196.141.10.100     tredb02_boot2
18.6.6.4         tredb02_svc
18.6.6.5         tredb01_per  db1
18.6.6.6         tredb02_per  db2
$ cllsif
Adapter              Type       Network    Net Type   Attribute  Node       IP Address       Hardware Address Interface Name   Global Name      Netmask          Alias for HB Prefix Lengthhdiskpower0_01       service    net_diskhb_01 diskhb     serial     tredb01    /dev/hdiskpower0                  hdiskpower0                                             
tredb01_boot1        boot       net_ether_01 ether      public     tredb01    196.141.100.110                   en0                         255.255.255.224             27
tredb01_boot2        boot       net_ether_01 ether      public     tredb01    196.141.10.110                    en4                         255.255.255.224             27
tredb02_ser          service    net_ether_01 ether      public     tredb01    18.6.6.4                                                      255.255.255.224             27
hdiskpower0_02       service    net_diskhb_01 diskhb     serial     tredb02    /dev/hdiskpower0                  hdiskpower0                                             
tredb02_boot2        boot       net_ether_01 ether      public     tredb02    196.141.10.100                    en4                         255.255.255.224             27
tredb02_boot1        boot       net_ether_01 ether      public     tredb02    196.141.100.100                   en0                         255.255.255.224             27
tredb02_ser          service    net_ether_01 ether      public     tredb02    18.6.6.4                                                      255.255.255.224             27
$ cllscf
Cluster Name: tredb
Cluster Connection Authentication Mode: Standard
Cluster Message Authentication Mode: None
Cluster Message Encryption: None
Use Persistent Labels for Communication: No
There were 2 networks defined : net_diskhb_01, net_ether_01
There are 2 nodes in this cluster.NODE tredb01:This node has 2 service IP label(s):Service IP Label hdiskpower0_01:IP address:     /dev/hdiskpower0Hardware Address:       Network:        net_diskhb_01Attribute:      serialAliased Address?:       DisableService IP Label hdiskpower0_01 has no communication interfaces.Service IP Label hdiskpower0_01 has no communication interfaces for recovery.Service IP Label tredb02_ser:IP address:     18.6.6.4Hardware Address:       Network:        net_ether_01Attribute:      publicAliased Address?:       EnableService IP Label tredb02_ser has 2 communication interfaces.(Alternate Service) Communication Interface 1: tredb01_boot1IP address:     196.141.100.110Network:        net_ether_01Attribute:      publicAlias address for heartbeat:    (Alternate Service) Communication Interface 2: tredb01_boot2IP address:     196.141.10.110Network:        net_ether_01Attribute:      publicAlias address for heartbeat:    Service IP Label tredb02_ser has no communication interfaces for recovery.This node has 1 persistent IP label(s):Persistent IP Label tredb01_per:IP address:     18.6.6.5Network:        net_ether_01NODE tredb02:This node has 2 service IP label(s):Service IP Label hdiskpower0_02:IP address:     /dev/hdiskpower0Hardware Address:       Network:        net_diskhb_01Attribute:      serialAliased Address?:       DisableService IP Label hdiskpower0_02 has no communication interfaces.Service IP Label hdiskpower0_02 has no communication interfaces for recovery.Service IP Label tredb02_ser:IP address:     18.6.6.4Hardware Address:       Network:        net_ether_01Attribute:      publicAliased Address?:       EnableService IP Label tredb02_ser has 2 communication interfaces.(Alternate Service) Communication Interface 1: tredb02_boot2IP address:     196.141.10.100Network:        net_ether_01Attribute:      publicAlias address for heartbeat:    (Alternate Service) Communication Interface 2: tredb02_boot1IP address:     196.141.100.100Network:        net_ether_01Attribute:      publicAlias address for heartbeat:    Service IP Label tredb02_ser has no communication interfaces for recovery.This node has 1 persistent IP label(s):Persistent IP Label tredb02_per:IP address:     18.6.6.6Network:        net_ether_01Breakdown of network connections:Connections to network net_diskhb_01Node tredb01 is connected to network net_diskhb_01 by these interfaces: hdiskpower0_01Node tredb02 is connected to network net_diskhb_01 by these interfaces: hdiskpower0_02Connections to network net_ether_01Node tredb01 is connected to network net_ether_01 by these interfaces: tredb01_boot1tredb01_boot2tredb02_sertredb01_perNode tredb02 is connected to network net_ether_01 by these interfaces: tredb02_boot2tredb02_boot1tredb02_sertredb02_per

5 直接查看HA配置

# smit hacmp
1、选择 --> Initialization and Standard Configuration
2、选择 --> Display HACMP Configuration
Command: OK            stdout: yes           stderr: noBefore command completion, additional instructions may appear below.Cluster Name: tredb
Cluster Connection Authentication Mode: Standard
Cluster Message Authentication Mode: None
Cluster Message Encryption: None
Use Persistent Labels for Communication: No
There are 2 node(s) and 2 network(s) definedNODE tredb01:Network net_diskhb_01hdiskpower0_01  /dev/hdiskpower0Network net_ether_01tredb02_ser     18.6.6.4tredb01_boot1   196.141.100.110tredb01_boot2   196.141.10.110NODE tredb02:Network net_diskhb_01hdiskpower0_02  /dev/hdiskpower0Network net_ether_01tredb02_ser     18.6.6.4tredb02_boot2   196.141.10.100tredb02_boot1   196.141.100.100Resource Group tredbrgStartup Policy   Online On Home Node OnlyFallover Policy  Fallover To Next Priority Node In The ListFallback Policy  Never FallbackParticipating Nodes      tredb01 tredb02Service IP Label                 tredb02_serTotal Heartbeats Missed:        42
Cluster Topology Start Time:    02/10/2023 22:07:38

4 HA网卡SMIT查看方法（暂不完整）

4.1 根据hosts文件确认IP对应的别名

$ cat /etc/hosts
100.1.22.1       test1_boot1  test1
100.1.22.2       test2_boot1  test2
192.168.22.1     test1_boot2
192.168.22.2     test2_boot2
10.1.22.1        test1_svc
10.1.22.5        test1_per  db1
10.1.22.6        test2_per  db2

4.2 根据serviceIP确认Persistent IP的网络

# smit hacmp
1、选择 --> Initialization and Standard Configuration
2、选择 --> Configure Resources to Make Highly Available
3、选择 --> Configure Service IP Lables/Addresses
4、选择 --> Add a Service IP Lable/Address
添加db1_svc，选择网络 net_ether_01
“IP Lable/Address”选择test1_svc

确认获取网络为net_ether_01

4.3 根据Persistent IP的网络得到Persistent IP

# smit hacmp
1、选择 --> Initialization and Standard Configuration
2、选择 --> Configure Resources to Make Highly Available
3、选择 --> Configure Persistent Node IP Lables/Addresses
4、选择 --> Add a Persistent Node IP Lable/Address
5、两个节点分别按规划配置。先配置节点db1
6、配置
“Network Name”net_ether_01
“Node IP Lable/Address”选择db1
“Netmask”填写255.255.255.0

确认网络为net_ether_01的Persistent IP为db1