5. Resource Group
A resource group is a set of resources and MCCS failover the entire resources in a group when failure is occurred.
MCCS performs failover of nodes on a group basis. Thus, you need to group the resources in the unit of failover.In addition, within a cluster, you can create multiple groups.
Table of Contents
Resource Group Attribute
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
Attribute | Description | Type | Default | Edit | Note |
|---|---|---|---|---|---|
ActionState | It represents the action status for the ongoing group. | STRING |
| X |
|
AutoDisabled | Automatically disabled. | 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 |
|
*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 | O |
|
Enabled | 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 |
|
MaxDependencyLevel | Designate the max vertical level that sets the dependencies among the resources in a group. | INTEGER | 20 levels | X |
|
Monitored | 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 |
|
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* AutoStart (true/false)