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Sun Cluster 3.1 - 3.2 with StorageTek RAID Arrays Manual for Solaris OS

ProcedureHow to Create a Logical Volume

Use this procedure to create a logical volume from unassigned storage capacity.

Note –

Sun storage documentation uses the following terms:

This manual uses logical volume to refer to all such logical constructs.

Before You Begin

This procedure relies on the following prerequisites and assumptions.

This procedure provides the long forms of the Sun Cluster commands. Most commands also have short forms. Except for the forms of the command names, the commands are identical. For a list of the commands and their short forms, see Appendix A, Sun Cluster Object-Oriented Commands, in Sun Cluster 3.1 - 3.2 Hardware Administration Manual for Solaris OS.

  1. Become superuser or assume a role that provides solaris.cluster.modify role-based access control (RBAC) authorization.

  2. Follow the instructions in your storage device's documentation to create and map the logical volume. For a URL to this storage documentation, see Related Documentation.

    • Completely set up the logical volume. When you are finished, the volume must be created, mapped, mounted, and initialized.

    • If necessary, partition the volume.

    • To allow multiple clusters and nonclustered nodes to access the storage device, create initiator groups by using LUN masking.

  3. If you are not using multipathing, skip to Step 5.

  4. If you are using multipathing, and if any devices that are associated with the volume you created are at an unconfigured state, configure the multipathing paths on each node that is connected to the storage device.

    To determine whether any devices that are associated with the volume you created are at an unconfigured state, use the following command.


    # cfgadm -al | grep disk
    Note –

    To configure the Solaris I/O multipathing paths on each node that is connected to the storage device, use the following command.


    # cfgadm -o force_update -c configure controllerinstance

    To configure the Traffic Manager for the Solaris 9 OS, see the Sun StorEdge Traffic Manager Installation and Configuration Guide. To configure multipathing for the Solaris 10 OS, see the Solaris Fibre Channel Storage Configuration and Multipathing Support Guide.

  5. On one node that is connected to the storage device, use the format command to label the new logical volume.

  6. From any node in the cluster, update the global device namespace.

    • If you are using Sun Cluster 3.2, use the following command: 


      # cldevice populate

    • If you are using Sun Cluster 3.1, use the following command:


      # scgdevs
    Note –

    You might have a volume management daemon such as vold running on your node, and have a DVD drive connected to the node. Under these conditions, a device busy error might be returned even if no disk is inserted in the drive. This error is expected behavior. You can safely ignore this error message.

  7. To manage this volume with volume management software, use Solaris Volume Manager or Veritas Volume Manager commands to update the list of devices on all nodes that are attached to the new volume that you created.

    For more information, see your Solaris Volume Manager or Veritas Volume Manager documentation.

See Also