How to Remove a StorEdge 9910/9960 Array

Use this procedure to permanently remove a StorEdge 9910/9960 array. This procedure provides the flexibility to remove the host adapters from the nodes that were attached to the StorEdge 9910/9960 array you are removing.

This procedure defines Node A as the node you begin working with, and Node B as the remaining nodes. If you remove an array from more than two nodes, repeat Step 14 through Step 21 for each additional node that connects to the array.

During this procedure, you will lose access to the data that resides on the StorEdge 9910/9960 array you are removing.

1. If necessary, back up all data and migrate all resource groups and disk device groups to another node.

2. Determine if the array that you plan to remove is configured as a quorum device.

   # scstat -q

   • If the array is not a quorum device, go to Step 3.

   • If the array is configured as a quorum device, choose and configure another device to be the new quorum device. Then remove the old quorum device.

   To add and remove a quorum device in you configuration, see the Sun Cluster 3.0 12/01 System Administration Guide.

3. If necessary, detach the submirrors from the StorEdge 9910/9960 array you are removing in order to stop all I/O activity to the array.

   For more information, see your Solstice DiskSuite or VERITAS Volume Manager documentation.

4. Run the appropriate Solstice DiskSuite or VERITAS Volume Manager commands to remove the references to the logical volume(s) from any diskset or disk group.

   For more information, see your Solstice DiskSuite or VERITAS Volume Manager documentation.

5. Determine whether your nodes are enabled with the Solaris dynamic reconfiguration (DR) feature.

   • If your nodes are enabled with DR, disconnect the fiber optic cables and, if desired, remove the host adapters from both nodes. Then perform Step 21 on each node that was connected to the array.

     For the procedure on removing a host adapter, see the documentation that shipped with your host adapter or updated information on the manufacturer's web site.

   • If your nodes do not have DR enabled, proceed to Step 6.

6. Determine the resource groups and device groups that are running on Node A and Node B.

   Record this information because you will use it in Step 20 of this procedure to return resource groups and device groups to these nodes.

   # scstat

7. Stop the Sun Cluster software on Node A, and shut down Node A.

   # shutdown -y -g0 -i0

   For the procedure on shutting down a node, see the Sun Cluster 3.0 12/01 System Administration Guide.

8. Disconnect the fiber-optic cable between Node A and the StorEdge 9910/9960 array.

9. Do you want to remove the host adapter from Node A?

   • If no, skip to Step 12.

   • If yes, power off Node A.

10. Remove the host adapter from Node A.

    For the procedure on removing host adapters, see the documentation that shipped with your host adapter or updated information on the manufacturer's web site.

11. Without allowing the node to boot, power on Node A.

    For more information, see the documentation that shipped with your server.

12. Boot Node A into cluster mode.

    {0} ok boot

13. On Node A, update the device namespace.

    # devfsadm -C

14. Stop the Sun Cluster software on Node B, and shut down Node B.

    # shutdown -y -g0 -i0

    For the procedure on shutting down a node, see the Sun Cluster 3.0 12/01 System Administration Guide.

15. Disconnect the fiber-optic cable between Node B and the StorEdge 9910/9960 array.

16. Do you want to remove the host adapter from Node B?

    • If no, skip to Step 19.

    • If yes, power off Node B.

17. Remove the host adapter from Node B.

    For the procedure on removing host adapters, see the documentation that shipped with your server and host adapter.

18. Without allowing the node to boot, power on Node B.

    For more information, see the documentation that shipped with your server.

19. Boot Node B into cluster mode.

    {0} ok boot

    For more information, see the Sun Cluster 3.0 12/01 System Administration Guide.

20. Return the resource groups and device groups you identified in Step 6 to Node B.

    # scswitch -z -g resource-group -h nodename # scswitch -z -D device-group-name -h nodename

21. On Node B, update the device namespace.

    # devfsadm -C

22. Repeat Step 14 through Step 21 for each additional node that connects to the array.

23. From one node, remove DID references to the array that was removed.

    # scdidadm -C