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It is managed disk which multiple nodes share.

Within a cluster, the application may be store the data on shared disk when it is equipped.

MCCS manages the  Unmount / Mount of the disk and monitors it is read/writable state. MCCS attach the shared disk to the only node to prevent file system corruption.


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  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 the "Next" button. When add a resource from the shared disk resource type name, this step will be skipped.
  3. Enter the resource name. Enter the file system type, volume device file location and mount point or click the  to browse these informations. 

    Infowarning

    Names of disks on both nodes which are used as resources of a shared disk have to be the same.



    [Figure] Finish Button Active after Entering All the Data


  4. As Additional Settings, mount command, forced to unmount and filesystem check options are available and click the "OK" button.

    [Figure] Additional setting view


  5. Click the "Finish" button to add the shared disk resource.

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Shows the specified attribute of shared disk resource.

Attribute

Description

Type

DefaultEditNote
ChkDskTimeoutIt is timeout limit to complete or stop the check disk of the shared disk before attaching it . If value is '0', MCCS waits to complete the check disk before attaching it.INTEGER0O

DevPath

Defines absolute path of device that will be mount.

STRING


O

DoFsck

If set to true, fsck will be performed when the shared disk is brought online.

BOOLEAN

falseO

FileSystem

Defines file system type of the shared disk.

STRING


O
ForceUnmountIf it is set to true, the shared disk will be forcefully unmounted when it is taken offline even tough it has been used.BOOLEANfalseO
FsckOpt
Defines fsck options.
Specify command option for file system check commandSTRING-aO
HostIDUnique server id for SCSI reservationSTRING

X


IOTestChecks I/O status of a disk if it is set as trueBOOLEANtrueO
MountOptDefines mount optionsSTRING
O
MountPointDefines absolute path for the mounting location.DIRECTORY
O
IOTestChecks I/O status of a disk if it is set as trueBOOLEANtrueO

RegTypeRegister type of SCSI deviceSTRING
X
UseSCSILOCKIf it's set to true, Use SCSI reservationBOOLEANfalseO
UUIDIt's UUID of target disk. For example '00c0ffd79655000050042c4f01000000'. It will be set by automatically when you set proper letter.STRING
X
VendorTypeVender type of SCSI deviceSTRING
X


Specified attribute values are normally entered when add the resource, This value can be edited or viewed through 'Specified Attribute' table in the Resource Attributes tab on the detailed information panel.


Info

MCCS has function to limit input values against user's input field, and it provides function detects automatically data which is input wrong by user's mistake.