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5-2 Add and Delete Group

5-2 Add and Delete Group

2015/04/13

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 Resource Group

  1. 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 

  2. If you select to register a group, you will see the initial group registration screen.
    In the initial group registration screen, enter a group name and move the operation target node from the left window to the right window.

     


    [Figure] Operation Target Node Selection

     

     

  3. Press the 'Additional Setting' button to decide whether to set the group policy to failover or parallel operation.
    If you have added more than one node to the operation target node, additional setting will be activated.


    [Figure] Additional Settings View

     

  4. Designate a group policy and configure an application.
    For more on how to add each resource, refer to the below link.
    Refer to the descriptions of adding complex applications in "7.4 Complex Application Resource."
    Refer to the description of adding basic application in "7.3 Basic Application Resource."
    Refer to the descriptions of adding service resource in "7.7 Service Resource."

     
    [Figure] Application Configuration

  5. Configure the network related resource.

    For more on how to add each resource, refer to the below link.
    Refer to the descriptions of adding network card in “7.1 Network Card Resource."
    Refer to the descriptions of adding a network address in "7.2 Network Address Resource."

     

     

     


    [Figure] Network Configuration

     

  6. Configure the disk related resource.
    For more on how to add each resource, refer to the below link.
    Refer to the descriptions of adding shared disk resources in "7.5 Shared Disk Resource." 
    Refer to the descriptions of adding SCSI reservation resource in "7.9 SCSI Reservation Resource."
    Refer to the descriptions of adding mirror disks in "       7.6 Mirror Disk Resource  ."
     


    [Figure] Disk Configuration  
     

  7. Once you have configured all the resources, it will suggest a dependency recommended by MCCS.
    If you want to change the dependency, select the Dependency tool in the right tab and change it.

     
    [Figure] Recommended Dependency Modified


  8. After creating dependency, detailed information of group configuration can be shown as below.


     [Figure] Group Detailed Information View 

Deleting

To delete a group, first make sure that there are existing online resources in a group.
If there is an existing resource online, terminate or delete it.

  1. To delete group, select Select Group - Right Click - Delete Group. 
    If one or more than one of the resources is online state, a message shown below will appear.

  2. When this happens, offline the group first before deleting it.


    [Figure] Warning Message of Deleting Group


  3. If the mirror disk is included in the group, a message asking if replication program of mirror disk will be deleted as well. 


    [Figure] Deleting Mirror Disk View