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Configuring automatic ownership assignment of disks

If you have unowned disks on a stack, loop, or shelf, you can configure Data ONTAP to automatically assign disk ownership at the stack or shelf level.

Before you begin

About this task

For most system configurations, you can use automatic assignment at the stack or loop level; for smaller configurations, you can use automatic assignment at shelf level.

You can use automatic assignment at the shelf level for the following system configurations:

If the disks on a single shelf have ownership split between two systems, you need to manually assign those disks; you cannot use automatic disk assignment for the disks on that shelf.

Steps

  1. The action you take depends on whether you want to set up automatic ownership assignment at the stack, loop, or shelf level:
    If you want to... Then...
    Configure automatic ownership assignment at the stack or loop level Set options disk.auto_assign to on.
    Configure automatic ownership assignment at the shelf level Set options disk.auto_assign to on and options disk.auto_assign_shelf to on.
    Turn off automatic ownership assignment Set options disk.auto_assign to off and options disk.auto_assign_shelf to off.
    Example
    For example, you have a shelf whose disks are owned by one system and another shelf on the same loop whose disks are owned by a different system. In this case, you would configure automatic ownership assignment at the shelf level.
    options disk.auto_assign on
    options disk.auto_assign_shelf on
    Data ONTAP automatically assigns unowned disks on the stack, loop, or shelf, depending on the command you entered.
  2. Verify the automatic assignment settings for the disks: disk show -o owner_name -v