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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 use the following command...
    Configure automatic ownership assignment at the stack or loop level storage disk option modify -autoassign on
    Configure automatic ownership assignment at the shelf level storage disk option modify -autoassign on -autoassign-shelf on
    Note: The -autoassign-shelf parameter is ignored if -autoassign is set to off.
    Turn off automatic ownership assignment storage disk option modify -autoassign off -autoassign-shelf 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.
    storage disk option modify -autoassign-shelf on -node *
    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: storage disk option show
    Example
    cluster1::> storage disk option show
    
    Node    BKg. FW. Upd.  Auto Copy  Auto Assign 	Auto Assign Shelf
    ------  -------------  ---------  -----------	 -----------------
    node0   on             on         on			        on
    node1   on             on         on			        on
    node2   on             on         on			        on
    node3   on             on         on			        on