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Group attribute can be identified from Group Attributes view and Group State view.
From the group management view of MCCS web console, select group, then select the ‘Group Attributes’ tab located on right top of detailed information panel.
The values of gray colored are for read only. They just contain and show the information of group state. The values of white colored are configurable by user definition.
[Figure] Group Attribute View
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| Attribute | Description | Type | Default | Edit | Note | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| ActionState | It represents the action status for the ongoing group. | STRING | X | AutoDisabled | Automatically disabled. If a engine is being operated or monitoring of the resources in a group is not finished, it cannot guarantee exclusive execution of the resource and it is set to True. | BOOLEAN | false | X | ||
| AutoFailover | Determine whether to perform automatic failover when trouble occurs within the group. | BOOLEAN | true | O | ||||||
| AutoFaultClearTIme | A failover occurs after trouble is detected, and it remains online for the given time limit. After that, all the trouble status will be removed. | INTEGER | 0 sec | O | ||||||
| AutoRestart | If a group is not started because of failures in resource for detection, determine whether to automatically start it when the resource or node is normalized. | BOOLEAN | false | O | ||||||
| AutoRestartTimeout | The wait time for the group to be checked by checking the group status automatically when Auto starts | INTEGER | 30sec | O | ||||||
| *AutoStart | When the engine starts, it will notify when the group will be started automatically. | BOOLEAN | true | O | ||||||
| AutoStartNode | Set a node which group can be online while remote node being joined in a cluster after MCCS main process is started. | STRING | NONE | O | ||||||
| BatchAfterOnline | Set the batch file to run after a group goes online. | FILE | O | |||||||
| BatchBeforeOffline | Set the batch file to run before a group goes offline. | FILE | O | |||||||
| BatchTimeout | Designate the time out for running the batch file. | INTEGER | 300 sec | OEnabled | ||||||
It allows group to be managed.If the attribute value is set to 'false', a group cannot be controlled. | BOOLEAN | true | O | *Failover | It indicates group is failing over due to failure. | BOOLEAN | false | X | ||
| GroupName | It is group name. | NAME | X | |||||||
| Locked | The group is permanent locked. Lock a group to prohibit all commands and operation. | BOOLEAN | false | X | ||||||
| LokeTimeout | Sets the time limitation in case of using the "Temporary lock" item. The locking status would be unlocked after the time you've setted here | INTEGER | 6h | O | ||||||
| MaxDependencyLevel | Designate the max vertical level that sets the dependencies among the resources in a group. | INTEGER | 20 levels | XMonitored | It indicates whether all the enabled resources are monitored. | BOOLEAN | X | |||
| OnlineCount | It is the number of resource which is online within a group. '0' means that a group is offline. | INTEGER | X | |||||||
| Parallel | It is a group's parallel attributes. | BOOLEAN | false | X | ||||||
| PreActive | It shows the name of node where a group was online before. | STRING | X | |||||||
| State | It represents the group status of node (online, offline, trouble, unchecked). | STRING | X | |||||||
| TargetNodeList | It is the list of nodes where a group is operated. Higher priority node will be primary node. | STRING | X | |||||||
| TLocked | The group is temporary locked. | BOOLEAN | false | X |
| Info |
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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. |
* AutoStart (true/false)
Determine whether to automatically start a group when making a new connection to a cluster in the system booting phase. (If the MCCS service is restarted or a single node is restarted to connect to operating MCCS, it will be ignored.) If a parallel group is offline at a local node or some members are online, it will automatically start. In case of a failover group, the node with the highest priority will be automatically started first. In case of locking or troubles, a group will not be started.
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The state of the group is determined by the state of the resources.
However, the status of persistent resources like Ethernet adapter do not affect on the status of group because these resources should be online on both nodes commonly.
Basically the group may have the following states.
[Figure] Group State View
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