PRIMECLUSTER Global Disk Services Configuration and Administration Guide 4.1 (Solaris(TM) Operating System)

5.2.3.1 Class Configuration

In this section, how to create a new class is explained.

In the [Settings] menu, select [Class Configuration]. Class Configuration screen appears.

[Figure: Class Configuration]

1. Selecting class name

   In the [Class Name] list, select "New."
   
   

2. Selecting physical disk

   In the [Physical Disk] field, select the physical disk you want to include in the disk class.

   You can select more than one physical disk at a time.

   Selecting a physical disk will make the <Add> button available.

   [Figure: Selecting Physical Disk to Configure Class]

   

   
   

3. Creating a class

   Click <Add>, and the message below appears.

   [Figure: Warning]

   

   Click <Yes> to continue, and <No> to cancel.

   Click <Yes>, and Class Attributes Definition screen appears.

   [Figure: Class Attributes Definition]

   

   In the [Class Name] of Class Attributes Definition screen, an automatically created disk class name appears as default. Change the [Class Name] if necessary, and click <OK>.

   The [Type] is "shared" and the [Scope] indicates a node that can share disks with respect to the class. To accept the settings, click the <OK> button.

   Inputting Class Name
   Class name will be used for the device path name.

   /dev/sfdsk/class_name/[r]dsk/volume_name

   You must be careful when inputting the class name, as once the volume is created, it cannot be changed.

   Creating Local Type Class with Cluster System
   When creating a local type class in cluster system, class name should be set differently for each node.

   
   For information on assigning a class name, see "Object Name."

   This operation determines the class name.
   
   When using single node, [Type] is fixed to "local" and you cannot change it.
   
   If you click <Cancel> in the Class Attributes Definition screen, registration of the physical disk itself will be canceled.
   
   

4. Setting disk attributes

   Selecting the [Disk Name] in the [Class Configuration Disk] field allows you to set the disk attributes. From here, you can change the [Disk Name] and [Type].

   1. Changing disk name

      Double-click the [Disk Name] in the [Class Configuration Disk] field, and change the name.
      

   2. Changing disk type

      Display the [Disk Type] in the [Class Configuration Disk] field and select the disk type you wish to change from the list. When specifying as a spare disk select "spare." When specifying as a single disk, select "single." Default is set to "undef."
      
      

5. Completing class creation

   After creating all classes, click <Exit> and close Class Configuration screen.

   Classes in Cluster Systems

   • Creating a class adds a class resource, and removing a class removes a resource.

   • When removing a class resource, remove the class without using the PRIMECLUSTER cldelrsc(1M) command.

   • Cluster applications that use resources of a class should be set after the volume configuration is complete.

   
   For information on how to create a shared type class in cluster systems, see "Cluster System Class Configuration."