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If you want to represent many HW or SW H/W or S/W elements as resources, you need to define the order of operation for them. For instance, the IP address does not mean anything without going through the physical network adapter phase. Also, without running the DB engine service, you cannot run a DB connection client.The logical time order as discussed here is defined as a hierarchy relationship between a parent and a child in MCCS.The parent resource is above the child resource. When you start a group in MCCS, it will start going online from the bottom to the top. The parent resource can go online only after all the child resources go online. When you terminate a group, it will start going offline from the top to the bottom. |
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Actions due to dependency
Online/Offline of the group is performed from bottom to top according to the dependency in case of online, and from top to bottom in case of offline.
Following are a few examples how MCCS manages the resources after dependency link among the resources when a resource is failed.
Attributes and state of resources are defined as the figure below.
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[Figure] Resource State Information Charts
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