Creating LDEVs with the ALU attribute

Use this procedure to create LDEVs with the ALU attribute.

Before you begin

The Storage Administrator (Provisioning) role is required to perform this task.

Procedure

  1. In the Device Manager - Storage Navigator Explorer pane, click Storage Systems, expand the target storage system, and then click Logical Devices.

  2. In the LDEVs tab, click Create LDEVs.

  3. In the Create LDEVs window, from the Provisioning Type list, select ALU.

  4. In Number of LDEVs, type the number of LDEVs to be created.

  5. In LDEV Name, specify a name for this LDEV.

    1. In Prefix, type the characters that will become the fixed characters for the beginning of the LDEV name. The characters are case sensitive.

    2. In Initial Number, type the initial number that will follow the prefix name.

  6. Click Options to show more options.

  7. In Initial LDEV ID, make sure that an LDEV ID is set. To confirm the used number and unavailable number, click View LDEV IDs to open the View LDEV IDs window.

    1. In Initial LDEV ID in the Create LDEVs window, click View LDEV IDs.

      In the View LDEV IDs window, the matrix vertical scale represents the second-to-last digit of the LDEV number, and the horizontal scale represents the last digit of the LDEV number. The LDEV IDs table shows the available, used, and disabled LDEV IDs.

      In the table, used LDEV numbers appear in blue, unavailable numbers appear in gray, and unused numbers appear in white. LDEV numbers that are unavailable may be already in use, or already assigned to another emulation group (group by 32 LDEV numbers).

    2. Click Close

  8. In the CLPR list, select the CLPR ID.

  9. From the MP Unit list, select an MP unit to be used by the LDEVs.

    • If you assign a specific MP unit, select the ID of the MP unit.
    • If you can assign any MP unit, click Auto.

  10. Click Add.

    The created LDEVs are added to the Selected LDEVs table.

    The Provisioning Type and Number of LDEVs must be set. If these required items are not registered, you cannot click Add.

  11. If necessary, change the following LDEV settings:

    • Click Change LDEV Settings to open the Change LDEV Settings window.

  12. If necessary, delete an LDEV from the Selected LDEVs table.

    Select an LDEV to delete, and then click Remove.

  13. Click Finish.

    The Confirm window opens.

    To continue setting the LU path and defining a logical unit, click Next.

  14. In the Task Name text box, type a unique name for the task or accept the default.

    You can enter up to 32 ASCII characters and symbols, with the exception of: \ / : , ; * ? " < > |. The value "date-window name" is entered by default.

  15. Click Apply.

    If the Go to tasks window for status check box is selected, the Tasks window appears.

Parent Topic
  • Working with ALUs and SLUs for vSphere VVOL

    The storage systems can be integrated with a VMware® ESXi host or VMware® vCenter Server by Storage Provider for VMware vCenter, which provides support for vSphere APIs for Storage Awareness (VASA). Snapshot and replication functions are used in storage systems that are configured with Administrative Logical Units (ALUs) and Subsidiary Logical Units (SLUs).