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MVL can enable load / unload driver and activate without the need to reboot the system after installation. MVL is automatically installed in the last step of the installation of MCCS.
MVL driver can be installed/unistalled manually through the command of, 'install.bat /uninstall.bat' of the '%MCCS_HOME%\bin\DiskAgent' directory.
MVS is developed in a way of legacy filter driver of Wiindows.
Therefore, service start and stop can be done through net command of Windows.
Following is the way of service start and stop using command line interface.

Start

Code Block
title시작Start
net start vollock

Stop

Code Block
title중지Stop
net stop vollock

When removing MCCS, removal is done for both MCCS and also MVL. To remove it completely. Execute 'unistall.bat of the bin' %MCCS_HOME%\bin\DiskAgent.

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Volume control on MVL can be done through Vollock.exe command in '%MCCS_HOME%\bin\DiskAgent'.

Code Block
title형식Format
vollock [/option] [Drive letter:]

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vollock.sys is registered through <Legacy> format since it is a legacy kernel filter driver.

Adding

Add the shared disk resource.
Before adding the shared disk resource, you must make sure that there exists an addable shared disk on the OS.

  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 'SharedDisk' from Resource Type lists and click 'Next' button. When add a resource from the shared disk resource type name, this step will be skipped.

  3. 공유 디스크 리소스에 사용될 드라이브 문자를 선택하면 권장 이름을 제공해 줍니다If you select a driver character to be used for the shared disk resource, it will recommend a name.

    Warning

    When you select a drive letter, all of driver letters of the node owns even without the volume of external shared storage is displayed. Please note that do not select the driver letter of none shared storage.


    [그림] 공유 디스크 리소스 드라이브 문자 선택 화면 Figure] Shared Disk Resource Drive Character Selected


  4. As Additional Settings, check disk option is available. 
    To use this option, select Use and enter check disk argument. (Default is /F)
    Click 'OK' button.
     
    [Figure] Defining check disk option


  5. Click the 'Finish' button to add the basic shared disk resource. 
    You can immediately check the result in the management web console.

Deleting

Select resource type → right click → delete resource.
The deleted resource will immediately disappear from the management web console.

 

Status

The following table explains the status switching of the MCCS resource caused by a user's command and the status.
The command assumes that it is generated by a user.

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StatusAgent commandDescriptionNote

Online

The volume is unlocked. You can write to it.

Offline

MVL is used to prevent user from writing/reading data to and from the disk.

 
Monitoring

MVL and temporary text file are created to monitor if you can write to the volume.

 

Offline

The volume is locked. You can neither read or write from and to the volume.

OnlineMVL is used to allow user to write/read data to and from the disk. 
Monitoring

MVL and temporary text file are created to monitor if you can write to the volume.

 

Trouble

The volume is online. But there is a problem caused by external elements. You cannot write to it.
Access to the volume can be prohibited by the external commands or other driver,
or the physical connections to the storage such as FC connections or SAN switches can cause troubles..

OnlineMVL is used to allow user to write/read data to and from the disk. 
OfflineMVL is used to prevent user from writing/reading data to and from the disk. 

 

 

Attribute

Show the unique attribute of shared disk resource.

Attribute

Description

TypeDefaultEditNote

Chkdsk

If the option is set to true, when the volume is mounted, according to the checkdisk options(ChkdskArg), disk is tested for errors.
Before running checkdisk, the mirror copying will be automatically stopped and resynchronization will be performed after checkdisk

BOOLEANfalseO 

ChkdskArg

When the checkdisk (Chkdsk) option is set to true, the check disk command option is activated.

STRING/FO 

DriveLetter

Designate the drive characters for the volume.

STRING O 

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