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It is managed IP address (virtual IP address) and subnet mask which will be assigned on a network interface card resource.
A real IP address which is static must be set in the network interface card to add on a virtual IP address. This can be switchable node to node in case it reacts in the same manner as the node’s real IP address, and applications and other nodes can communicate with the node using the virtual IP address. 
A virtual IP address cannot be used independently. This always depends on a network interface card resource, so this have a value which is name of the network interface card(NIC) resource in its ‘NICResName’ attribute. This value should be match to its depending NIC resource name to work properly. If  
If the NIC resource has not been configured or not in the ONLINE state, it cannot be used.

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이 페이지의 주요 내용Table of Contents

Table of Contents
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Adding

There are two way to add a resource which one is select this from a group name and another is select this from a resource type.

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Add the network address resource to a group.
The network card resource should be created before adding the network address resource.

  1. When add a resource from a group name, select a group -> → right click -> → 'Add Resource'. Or select Edit(E) from the main menu bar -> → select 'Add Resource'. Or select 'Add Resource' icon from the tool bar.
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    [Figure] Add resource wizard view

  2. Select 'IP' from Resource Type lists and click 'Next' button. When add a resource from the IP resource type name, this step will be skipped.
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    [Figure] Select Resource Wizard View
    Next steps are same as adding in resource type.

Adding in Resource Type

  1. ResourceType - Right Click - Click Add Resource
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    [Figure] Adding IP resource in a resource type

  2. Enter resource name.
    If you skip this, name will be given same value with virtual IP address.
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    [Figure] Adding IP Resource
    Enter virtual IP address which should have same subnet mask with real IP address of both nodes.
    Select NIC Resource which IP Address resource depends on.
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    [Figure] Adding values for IP resource

  3. Click 'Finish' button and IP resource is added.
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    [Figure] Adding IP Resource is Completed

Deleting

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  1. You can immediately check the result in the management web console.


Deleting 

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Select Resource type - → right click - → delete resource

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State

다음 테이블은 상태와 사용자 명령에 의해 발생되는 MCCS 리소스의 상태 이동에 대해 설명합니다.
명령은 사용자에 의해 발생되는 것을 전제로 합니다.

네트워크 주소 에이전트: 가상 IP 주소를 관리합니다.

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온라인

네트워크 장치에 가상 IP 주소가 할당된 상태입니다.

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지정된 네트워크 카드에 할당되어 있는 IP 주소를 제거합니다.

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네트워크 카드에 지정된 가상 IP 주소가 존재하는지 검사합니다.

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오프라인

네트워크 장치에 가상 IP 주소가 할당되어 있지 않은 상태입니다.

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지정된 네트워크 카드의 상태가 온라인 인지 확인합니다. 
IP 주소를 할당하기 전에 다른 시스템에서 사용 중인지를 먼저 검사합니다.
다른 시스템에서 사용하지 않는다면 가상 IP 주소를 네트워크 카드에 할당합니다.
이미 다른 시스템에 의해 선점된 주소로 온라인을 시도하면 온라인에 실패하고 장애 상태가 됩니다.

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네트워크 카드에 지정된 가상 IP 주소가 존재하는지 검사합니다.

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장애

1.네트워크 장치에 할당되어 사용 중이던 IP 주소가 외부의 명령으로 제거된 경우
2.네트워크 카드에 장애가 발생한 상태
3.네트워크 장치에 가상 IP 주소를 할당하려 했으나 실패한 상태
(ex: 예를 들면 다른 시스템에서 IP 주소를 사용하고 있는 경우)

구체적인 원인은 에러 로그를 통해서 확인할 수 있습니다.

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위의 온라인 명령 참조.

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The deleted resource will immediately disappear from the management web console.

Status

The following table explains the status switching of the MCCS resource caused by a user's command and the status.
The command assumes that it is generated by a user.

Network address agent: Manages a virtual IP address.

StatusAgent commandDescriptionNote

Online

In this status, a virtual IP address is assigned to a network device.

Offline

An IP address assigned to the designated network card is removed.

 
Monitoring

It tests if a virtual IP address exists on a network card.

 

Offline

In this status, a virtual IP address is not assigned to a network device.

Online

It first checks if the designated network card is online or not.
Before assigning an IP address, it first checks if other system is using that IP address.
If it is not used by other systems, a virtual IP address is assigned to the network card.
If it tries to go online with the address occupied by other system, it will be failed and it will enter the trouble state.

 
Monitoring

It tests if a virtual IP address exists on a network card.

 

Fault

1. IP address assigned to a network device is removed by the external command.
2. A failure occurs in a network card.
3. You failed to assign a virtual IP address to a network device.
(ex: For instance, other system is using the same IP address.)

Specific causes can be found in the error log.

Online

Refer to the above online command.

 
OfflineAn IP address assigned to the designated network card is removed. 

 

 

Attribute

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[Figure] IP Address Attribute

This is the unique attribute of the network address resource.

Attribute

Description

Type

DefaultEditNote

Address

Virtual IP address.

IP ADDRESS

 O 

Netmask

Subnet mask of the virtual IP address.

IP ADDRESS

 O 

NICResName

Name of the network interface card resource that has defined the network device of the virtual IP address being allocated.

NAME

 O 

Attribute value of ArgList arguments are the values that are added resources and the value can be changed or viewed through ’Specified Attribute’ list on the detailed information panel.
For more information about resource type attribute, please refer to “6. Resource Type” for this document.