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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 the NIC resource has not been configured or not in the ONLINE state, it cannot be used.


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Add the IP address resource to a group.
The NIC resource should be added before adding it.

  1. When add a resource from a group name, select a group → right click → 'Add Resource'. 
    Select 'IP' → "Add Resource"
    Add Resource Or selectEdit(E) from the main menu bar select Add Resource. Or selectAdd Resource icon from the tool bar.
  2. Select "IP" from Resource Type lists and click 'the "Next' " button. 
  3. Enter resource name. if you skip this, the name will be given same value with virtual IP address.
  4. Enter virtual IP address which should have same subnet mask with real IP address of both nodes.
    네트워크카드 리소스를 선택하고 가상 주소를 입력하면 MCCS 가 리소스 이름을 제안합니다.
    이 리소스 이름을 그대로 사용할 수도 있고 다르게 입력할 수도 있습니다.

    Image RemovedSelect NIC Resource which IP Address resource depends on.
    Image Added
    [Figure] Adding values for IP resource

  5. Click 'the "Finish' " button and IP resource is added.

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The following table explains the state of IP address resource.

네트워크 주소 에이전트: 가상 IP 주소를 관리합니다Network address agent: Manages virtual IP addresses.

StateAgent commandDescriptionNote

Online

An IP address is assigned properly on its corresponding NIC resource.

Offline

An IP address assigned to the designated NIC is removed.


Monitoring

It tests a virtual IP address exists on a NIC.


Offline

An IP address is unassigned on its corresponding NIC resource.

Online

It first checks if the designated NIC is online or not.
Before assigning an IP address, it first checks if other system is using the IP address.
If it is not used by other systems, a virtual IP address is assigned to the NIC.
If there is duplicated IP address, this command will be failed and its state will be Fault.


Monitoring

It tests a virtual IP address exists on a NIC.


Fault

1. IP address assigned to a NIC is removed by the user command.
2. A failure occurs in a NIC.
3. There is an error to assign an IP address.
(ex: e.g. For instance, there is duplicated IP address in the subnet.)

Details on the cause ca be shown thorough the error log.

Online

Refer to the above online command.


OfflineAn IP address assigned to the designated NIC is removed.

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Specified attribute values are normally entered when add the resource, This value can be edited or viewed through 'Specified Attribute' table in the Resource Attributes tab on the detailed information panel.


Info

MCCS 는 사용자의 입력필드에 대한 입력값 제한 기능이 존재하며, 사용자가 잘못 입력한 데이터에 대해 자동 점검기능을 제공합니다 has function to limit input values against user's input field, and it provides function detects automatically data which is input wrong by user's mistake.