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《HA网卡确认方法》
- 1 HA IP地址类型
- 2HA IP地址设置原则
- 3 HA网卡日常查看方法
- 3.1 查看hosts文件
- 3.2 查看网卡和IP
- 4 通过命令方式直接查看
- 5 直接查看HA配置
- 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
- 4.2 根据serviceIP确认Persistent IP的网络
- 4.3 根据Persistent IP的网络得到Persistent IP
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 db24.2 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
