Powering off an entire MetroCluster FC configuration

You must power off the entire MetroCluster FC configuration and all of the equipment before site maintenance or relocation can begin.

1. Verify the MetroCluster configuration from both sites in the MetroCluster configuration.
   1. Confirm the MetroCluster configuration and that the operational mode is normal.metrocluster show
   2. Confirm connectivity to the disks by entering the following command on any one of the MetroCluster nodes: run local sysconfig -v
   3. Run the following command: storage bridge show
   4. Run the following command: storage port show
   5. Run the following command: storage switch show
   6. Run the following command: network port show
   7. Perform a MetroCluster check: metrocluster check run
   8. Display the results of the MetroCluster check: metrocluster check show
2. Disable AUSO by modifying the AUSO Failure Domain to auso-disabled

   Example

   cluster_A_site_A::*>metrocluster modify -auto-switchover-failure-domain auso-disabled
       
   
3. Verify the change using the command metrocluster operation show

   Example

       cluster_A_site_A::*> metrocluster operation show
          Operation: modify
              State: successful
         Start Time: 4/25/2020 20:20:36
           End Time: 4/25/2020 20:20:36
             Errors: -
    
   
4. Halt the nodes by using the following command: halt
   • For a four-node or eight-node MetroCluster configuration, use the parameter inhibit-takeover

     system node halt -node node1_SiteA -inhibit-takeover true -ignore-quorum-warnings true
     
   • For a two-node MetroCluster configuration, use the command:

     system node halt -node node1_SiteA -ignore-quorum-warnings true
     
5. Power off the following equipment at the site:
   • Storage controllers
   • MetroCluster FC switches
   • ATTO FibreBridges
   • Storage shelves
6. Wait for thirty minutes and then power on all the controllers.
7. After the controllers are powered on, verify the MetroCluster configuration from both sites.
   To verify the configuration, repeat step 1.