...

[Figure] Mirroring Configuration

...

Mirror Mode

Replication option Mirror mode employs both asynchronous and synchronous mirroring schemes. Understanding the advantages and disadvantages between synchronous and asynchronous mirroring is essential to the correct operation of this.

...

1. When add a resource from a group name, select a group → right click → 'Add Resource'. Or select Edit(E) from the main menu bar → select 'Add Resource'. Or select 'Add Resource' icon from the tool bar.
    
2. Select 'MirrorDisk DR' from Resource Type lists and click 'Next' button. When add a resource from the mirror disk DR resource type name, this step will be skipped.
   
   

3. Select the mirror volume and MCCS will renew the information.

   If you skip enter resource name, this will given 'Mirror_value' which value is selected driver letter.(Ex: Mirror_G)

   Warning

   All replicated driver letter of nodes should be assigned same driver letter. [Drive characters in the SAN environment (shared disk) are also displayed in the list. So, make sure you select the accurate drive characters.] Data will be copied to the target node and DR node from the source node. Be careful when you select the drive character where data exists. If you try to add the existing mirror volume, <mirrored> will be added to the volume letter.

       

   
   [Figure] Mirror Disk DR Resource Added
   

      

4. Select IP address of mirror disk and offsite DR.

   
   

5. Select mirror type.

   Be careful that when you set to synchronous mode, this cannot be changed to asynchronous mode.
   You can select the mirror type in a cluster at Local Mirror Configuration and offsite DR at Remote server.

   Sync mode : Write I/O will may be delayed depend to network band, but there is no data loss involved.
   Async mode : Relatively faster than the synch mode but it does not guarantee that target data is identical to its source when meet disaster.
   

   
   

6. As 'Additional Settings', Check Disk option is available.

   Info
   <Check Disk Option> Set the check disk command option. For more details on the function, refer to MSDN.

   
   [Figure] check disk option

    

7. When click OK button, following popup message appear.
   Confirm selected server as source.
   If you select wrong sever, clock cancel button.
    
   [Figure] Alert popup message after click OK button  
   
   
8. Click the 'Finish' button to add the mirror disk DR resource.
   You can immediately check the result in the management web console.

...

1. Click "Delete resource" and a confirming message about deleting resource will appear.
   
   [Figure] check resource view    
   
   
2. Click "OK" and a confirming message about deleting redundancy program of mirror configuration will. 
   
   [Figure] Delete physical mirror disk view   
   
   
3. Click "OK" and redundancy program is deleted. Click "Cancle" and only mirror disk DR is deleted. 
   The deleted resource will immediately disappear from the management web console.

Status

 다음 테이블은 DR 쪽 상태와는 상관없이 클러스터내의 미러 상태와 사용자 명령에 의해 발생되는 MCCS 리소스의 상태 변화에 대한 설명입니다

The command assumes that it is generated by a user.

...

...