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  1. When you remove the dependency relationship, press 'Select' in the palette.
  2. Select a link to remove.
  3. The selected link will have big points at the both ends of resource to indicate the selection made.
  4. On the selected link, right click with your mouse button and select 'Dependency Removal' in the popup screen.

 

의존성 속성

의존성이 구성되면, 의존성을 리소스 그룹 트리 뷰에서 확인 할 수 있습니다.
의존성을 선택하여 해당 의존성의 속성을 확인 및 변경 할 수 있습니다.
의존성의 속성에는 'OnlineDependency' 와 'OfflineDependency' 가 있습니다.
속성들은 개별 
리소스의 온라인, 오프라인, 'Restartlimit'에 의한 리소스 재 시작 시 사용됩니다. (Restartlimit에 대한 상세한 내용은 "7. 리소스"  편을 참조해 주십시오.)

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Dependency Attribute

You can review and edit a dependency attribute when you select a dependency among resources.
There are 'OnlineDependency' and 'OfflineDependency' in the dependency attribute.
This is applied when you bring online and take offline a resource within 'Restartlimit'. (For more details about Restartlimit, Please refer to "7. Resource" in this manual.)

AttributeDescriptionTypeDefaultEditNote
OnlineDependency

This indicates that the child is also brought online or not when a resource online is initiated.
Types are STRONG and WEAK.
Child is not brought online when a resource online is initiated, if this set as WEAK.

STRINGSTRONGO 

OfflineDependency개별

리소스의 오프라인 시 부모 리소스의 오프라인 수행 여부를 판단하는 속성입니다.
이 속성은 STRONG과 WEAK 값을 가질 수 있습니다.
WEAK인 경우, 부모 리소스를 오프라인 하지 않고 단독 오프라인을 수행합니다This indicates that the parent is also taken offline or not when a resource offline is initiated.
Types are STRONG and WEAK.
Parent is not taken offline when a resource offline is initiated, if this set as WEAK.

STRING

STRONG O

 

 

Basic Dependency Cases among resources

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[Figure] Resource State Information Charts

 

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Action by dependency attribute

  • OnlineDependency

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[그림] 리소스(r1) 단일 온라인 예(D1의 OnlineDependency : Figure] Example of bring online of resource r1(OnlineDependency attribute of D1 between r1 and r2 is STRONG, D2의 OnlineDependency : WEAK) 

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OnlineDependency attribute of D2 between r1 and r3 is WEAK.) 

  1. MCCS check the Online Dependency attribute linked to r1.
  2. Child resources, r4 -> r2 -> r1순으로 온라인 합니다.
    (D2의 속성값은 WEAK이므로, r3는 온라인 하지 않습니다r1, are brought online in order to hierarchy when initiate resource online of r1 due to attribute of D1 is STRONG.
    (r3 isn't brought online due to attribute of D2 is WEAK.)


  • OfflineDependency


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[그림] 리소스(r4) 단일 오프라인 예(D1의 OfflineDependency : Figure] Example of take offline of resource r4.(D1의 OfflineDependency attribute of D1 between r2 and r4 is STRONG, D2의 OfflineDependency : WEAK) 

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OfflineDependency attribute of D2 between r3 and r4 is WEAK.) 

  1. MCCS checks OfflineDependency attribute linked to r4.
  2. Parents resources, r1 -> r2 -> r4순으로 오프라인 합니다.
    (D2의 속성값은 WEAK이므로, r3는 오프라인 하지 않습니다r4, are taken offline in order to hierarchy when initiate resource offline of r4 due to attribute of D1 is D1 STRONG.
    (r3 isn't taken offline due to attribute of D2 is WEAK.)


Resource Critical Attributes

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  1. On the assumption that the value of RestartLimit is 1 for resource r2, the first failure has occurred.
  2. MCCS will bring online resource r2 again as the value of RestartLimit. 
    At this time, resource r1 which depends on resource r2 will be taken offline.
  3. resource r2 restart.
  4. resource r1 online.
  5. When another failure occurs on resource r2, all of the resource will be taken offline from resource r1 to r3 by order.
  6. Resource r3 will be taken offline.
  7. As a result, resource r2 is considered as failure and all resources in the group is offline status in the node.


장애로 인한 리소스 재시작 시에는 의존성의 OfflineDependency 속성값에 따라 상위 리소스를 오프라인 하고 재시작합니다.
    재시작 후에는 오프라인 한 리소스들에 대해서 다시 온라인 합니다When it restart bring online of a group in a node due to failure, parent resources are taken offline first based on OfflineDependency attribute in the failure node. And then, bring online resources through the hierarchy..