How to Remove a Sun StorEdge T3 Disk Array

Use this procedure to permanently remove a Sun StorEdge T3 disk array and its submirrors from a running cluster. This procedure provides the flexibility to remove the host adapters from the nodes for the Sun StorEdge T3 disk array you want to remove.

This procedure defines Node A as the node you want to begin working with, and Node B as the remaining node.

During this procedure, you will lose access to the data that resides on the Sun StorEdge T3 disk array you want to remove.

1. If necessary, back up all database tables, data services, and volumes associated with the Sun StorEdge T3 disk array you want to remove.

2. Detach the submirrors from the Sun StorEdge T3 disk array you want to remove to stop all I/O activity to the Sun StorEdge T3 disk array.

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

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

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

4. On one node connected to the Sun StorEdge T3 disk array you want to remove, run the luxadm remove command, then, when prompted, disconnect the Sun StorEdge T3 disk array.

   # luxadm remove -F pathname

5. Disconnect the fiber optic cables from the Sun StorEdge T3 disk array you want to remove.

   Your volume manager might report disk drive failures. This reporting is expected behavior.

6. If you want to remove the host adapter from Node A, proceed to Step 7. Otherwise, skip to Step 20.

7. Move Node A's services to Node B.

   # haswitch nodename logicalhost

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

   # scadmin stopnode # shutdown -i0 -g0 -y

9. 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 nodes.

11. Power on and boot Node A.

    {0} ok boot

12. Start the Sun Cluster software on Node A.

    # scadmin startnode

    For more information, see the Sun Cluster 2.2 System Administration Guide.

13. If you have to remove a host adapter in Node B, proceed to Step 14. Otherwise, skip to Step 20.

14. Move Node B's services to Node B.

    # haswitch nodename logicalhost

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

    # scadmin stopnode # shutdown -i0 -g0 -y

16. 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 nodes.

18. Power on and boot Node B.

    {0} ok boot

19. Start the Sun Cluster software on Node B.

    # scadmin startnode

    For more information, see the Sun Cluster 2.2 System Administration Guide.

20. On all cluster nodes, update the /devices and /dev entries.

    Solaris 2.6:

    # drvconfig # disks -C # devlinks

    Solaris 8:

    # devfsadm -C