Resource group refers to the group of resource that failover when a failure occurs.
MCCS is executes failover between nodes in group unit.
Therefore, resource should be created in groups to be failover.
Also, more than one group can be created in one cluster.

Table of Contents

When click ESC key while creating group, group creation process is cancelled.
Therefore, please note not to press ESC key when proceed with group creation wizard.

Adding and Deleting Resource Group

To add a group, select 'group name → right click → Add Group' from configuration tree.
Or select 'Edit(E) → Add Group' from main menu.

[Figure] Adding a Group from configuration tree

[Figure] Group Registration Screen - Register Button of Toolbar

[Figure] Group Registration Screen - Group Register Button of Edit Menu
Add Group wizard is launched as shown below.

[Figure] Initial Add Group View
Enter group name, select the nodes from Available nodes list and click the '▶' button to moves these in Target Nodes lists.

[Figure] Select Active node View
When select just a node from Available nodes list, you can create single node group.

[Figure] Single node Group View

Unlike failover group, Single node group does not support failover when failure occurs.
If you have selected single node cluster in installation step, only one node appears in Available Nodes list.

[Figure] Single Node Cluster View

Unlike failover group, Single node Cluster does not support failover when failure occurs.
Click Additional Settings to choose group mode as failover or parallel.

[Figure] Additional Settings View

Failover group failover from active to standby node when failure occurs.
Parallel group is configured with the resources that can be executed on more than 2 nodes at the same time. Parallel group does not support failover, but restart the service when it is failed in local node.
After completed Basic Settings, you can add resources to be monitored by wizard based.

[Figure] Initial Configuration Application View

For more on how to add each resource, refer to the below link.
Refer to the descriptions of  Adding in "7.4 Applications".
Refer to the descriptions of  Adding in "7.3 Process".
Refer to the descriptions of  Adding in "7.7 Service".
If the added resource is incorrect, it can be deleted through clicking X.
To define the start or stop order among resources, use the arrow to change the order.

[Figure] Adding Service Resource View
After completed 'Configure Applications', you can add NIC and IP address resource.
If you would like to skip this step, check on 'Skip network configuration' and click 'Next' button.

[Figure] IP Resource and network Configuration View

[Figure] Progressing After Deactivating the Network Configuration Option
To add NIC resource, select a NIC from drop down box of 'Select Network Adapter' and enter resource name.
Default value is same as name of NIC and you can edit as your definition.

[Figure] Network Adapter Select View
To add IP resource, enter IP address which is represent for both nodes which is called Virtual IP address and enter resource name.
Default value is same as virtual IP address and you can edit as your definition.

NIC resource must be defined before add an IP resource.

[Figure] Adding iP Resource View
For more detail setting, click 'Additional Settings' and click 'OK' to complete 'Configure Network'.

[Figure] Additional setting View
After completed 'Configure Network', you can add disk resource.

[Figure] Initial Disk Configuration View

For more on how to add each resource, refer to the below link.
Refer to the descriptions of  Adding in "7.5 Shared Disk".
Refer to the descriptions of  Adding in "7.8 SCSI Lock".
Refer to the descriptions of Adding in "7.6 Service".
Mirror disk resource is added as below.

[Figure] Adding mirror disk resource is completed
After needed resource are all configured, MCCS will show suggested dependency map.

[Figure] Suggest dependency View
If you want to change the dependency, click Selection in the Dependency tool in the right tab.

[Figure] Select Dependency View
Select the dependency line to be deleted, right click and select 'Unlink' to delete dependency between the resources.

[Figure] Deleting dependency view
Click "OK" button and dependency will is deleted.

[Figure] Check to delete dependency
After deleting dependency, dependency line is disconnected.

[Figure] After deleting dependency view
To define dependency between the resources, select '↓Create Dependency' from 'Palette'.

[Figure] Create dependency view
Click parent resource first and then click child resource.

[Figure] Create dependency view
This is message to check to create dependency.

[Figure] Check create dependency view
Dependency map is completed shown as below.

[Figure] After creating dependency view
After creating dependency, detailed information of group configuration can be shown as below.

[Figure] Group Detailed Information View
Summary of group creation result will appears after this is completed successfully.

[Figure] Group Creation is completed

Add Group Only

To add group only, and not resource, please follow the steps below.

To add group, you can either click Cluster - Right click - Select Add Group or after clicking cluster, select Add Group button or select cluster from the tool bar and then click Add Group.

[Figure] Add resource group view
Enter group name, select the nodes from Available nodes list and click the '▶' button to moves these in Target Nodes lists.

[Figure] Select Active node View
In the application configuration step, do not configure application and click 'Next' button to continue.

[Figure] Configure application view
In the network configuration step, select 'Skip network configuration' and click 'Next' button to continue.

[Figure] Configure network view
In the disk configuration step, do not configure disk and click 'Next' button to continue.

[Figure] Disk configuration view
In the configuration dependency step, since there is no configured resources, no information appears. Click 'Next' button to continue.

[Figure] Configure Dependency view
In the detail view, you will see added group information only.

[Figure] Detail information view
Click 'Finish' button and group is created.

[Figure] Group is created.
Click 'Close' button and you will see created group in the view.

[Figure] Group Creation Completed View

Deleting

To delete group, check the online state of the group first. If there are online group, the resources should be terminated or deleted.

To delete group, select Select Group - Right Click - Delete Group.

[Figure] Delete Group View
If one or more than one of the resources is online state, a message shown below will appear.
When this happens, offline the group first before deleting it.

[Figure] Warning Message of Deleting Group
A warning window appears to confirm to delete group.

[Figure] Confirm Delete Group View
If the mirror disk is included in the group, a message asking if replication program of mirror disk will be deleted as well.

if you click "OK" button, replication program is deleted as well. Press "Cancel" button if you do not wish to delete replication program.

[Figure] Deleting Mirror Disk View
This is the view after deleting group.

[Figure] After Delete Group View

5-2 Add and Delete Group

Adding and Deleting Resource Group

Add Group Only

Deleting