Shutting Down the BGL

  1. Disable ASO and unconfigure witness.
  2. Perform a handover of all volume collections from the BGL to the GL so the GL will have only upstream volumes serving IO.
  3. Verify that the GL has GL status by running CLI: 
     group --status
  4. Shut down the BGL.
  5. Once maintenance is done, turn on array.
  6. Handover volume collections to distribute volumes as needed
  7. Await synchronization to complete.
  8. Enable ASO and configure the witness.