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1.  Installing and Maintaining a Sun StorEdge 3900 or 6900 Series System Maintaining Storage Systems How to Add a Storage System  Previous   Contents   Next 
   
 

ProcedureHow to Remove a Storage System

Use this procedure to permanently remove a storage system and the associated submirrors from a running cluster.

This procedure defines Node A as the node with which you begin working. Node B is the remaining node.

Caution! Caution - During this procedure, you lose access to the data that resides on each storage array partner-group. This partner-group is in the storage system that you are removing.

  1. If necessary, back up all database tables, data services, and volumes associated with each storage array partner-group. This partner-group is in the storage system that you are removing.

  2. If necessary, run the appropriate Solstice DiskSuite commands or VERITAS Volume Manager commands to detach the submirrors from each storage array partner-group. This partner-group is in the storage system that you are removing. Detach the submirrors to stop all I/O activity to the partner-groups.

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

  3. Run the appropriate Solstice DiskSuite commands or VERITAS Volume Manager commands to remove references to each LUN or VLUN. Each LUN or VLUN is in the storage system that you are removing.

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

  4. Determine the resource groups and device groups running on all nodes.

    Record this information because you use this information in Step 15 of this procedure to return resource groups and device groups to these nodes.
    # scstat

  5. Shut down Node A.

    For the procedure about how to shut down and power off a node, see your Sun Cluster system administration documentation.

  6. Disconnect the cables that connect Node A to the FC switches in your storage system.

  7. Without enabling the node to boot, power on Node A.

    For more information, see your Sun Cluster system administration documentation.

  8. Boot Node A into cluster mode.

    For more information about how to boot nodes, see your Sun Cluster system administration documentation.

  9. Shut down Node B.

    For the procedure about how to shut down and power off a node, see your Sun Cluster system administration documentation.

  10. Disconnect the cables that connect Node B to the FC switches.

  11. Without enabling the node to boot, power on Node B.

    For more information, see your Sun Cluster system administration documentation.

  12. Boot Node B into cluster mode.

    For more information on booting nodes, see your Sun Cluster system administration documentation.

  13. On all nodes, update the /devices and /dev entries.
    # devfsadm -C 
# devfsadm

  14. On all nodes, update the paths to the DID instances.
    # scdidadm -C 
# scdidadm -r
    .

  15. Return the resource groups and device groups that you identified in Step 4 to all nodes.
    # scswitch -z -g resource-group -h nodename
# scswitch -z -D device-group-name -h nodename

ProcedureHow to Replace a Virtualization Engine (StorEdge 6900 Series Only)

Use this procedure to replace a virtualization engine (VE) in a storage system in a running cluster.

  1. Replace the VE hardware.

    Follow the instructions in the Sun StorEdge 3900 and 6900 Series Reference Manual.

  2. On any node, view the virtualization engine (VE) controller status and enable the VE controllers.

    # cfgadm -al
# cfgadm -c configure c::controller id

ProcedureHow to Replace a Node-to-Switch Component

Use this procedure to replace the following node-to-switch components in a running cluster. This procedure defines Node A as the node connected to the node-to-switch component you are replacing. Node B is the remaining node node-to-switch connected to the component you are replacing.

  • Node-to-switch fiber-optic cable

  • GBIC or an SFP on an FC switch, connecting to a node

  1. Determine the resource groups and device groups running on Node A.

    Record this information because you use this information in Step 4 of this procedure to return resource groups and device groups to these nodes.
    # scstat

  2. Move all resource groups and device groups to Node B.
    # scswitch -S -h from-node

  3. Replace the node-to-switch component.

    • For the procedure about how to replace a fiber-optic cable between a node and an FC switch, see the documentation that shipped with your switch hardware.

    • For the procedure about how to replace a GBIC or an SFP on an FC switch, see the documentation that shipped with your FC switch hardware.

  4. Return the resource groups and device groups that you identified in Step 1 to Node A. 

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

ProcedureHow to Remove a Storage Array

Use this procedure to permanently remove storage array partner groups and their submirrors from a storage system. This storage system is in a running cluster.

This procedure defines Node A as the node with which you begin working. Node B is the remaining node.

Caution! Caution - During this procedure, you lose access to the data that resides on each storage array partner-group you are removing.

  1. If necessary, back up all database tables, data services, and volumes associated with each partner-group you are removing.

  2. If necessary, run the appropriate Solstice DiskSuite commands or VERITAS Volume Manager commands to detach the submirrors from each storage array or partner-group that you are removing. Detach the submirrors to stop all I/O activity to the storage array or partner-group.

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

  3. Run the appropriate Solstice DiskSuite commands or VERITAS Volume Manager commands to remove references to each LUN. Each LUN belongs to the storage array or partner-group that you are removing.

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

  4. Determine the resource groups and device groups running on all nodes.

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

  5. Shut down Node A.

    For the procedure about how to shut down and power off a node, see your Sun Cluster system administration documentation.

  6. Disconnect the fiber-optic cables that connect the storage arrays and the FC switches. Then disconnect the Ethernet cables.

  7. Is any storage array that you are removing the last storage array connected to an FC switch that is on Node A?

    • If no, skip to Step 11.

    • If yes, disconnect the fiber-optic cable between Node A and the FC switch that was connected to this storage array.

    For the procedure about how to remove a fiber-optic cable, see the Sun StorEdge T3 and T3+ Array Configuration Guide.

  8. Do you want to remove the host adapters from Node A?

    • If no, skip to Step 11.

    • If yes, power off Node A.

  9. Remove the host adapters from Node A.

    For the procedure about how to remove host adapters, see the documentation that shipped with your host adapter and nodes.

  10. Without enabling the node to boot, power on Node A.

    For more information, see your Sun Cluster system administration documentation.

  11. Boot Node A into cluster mode.

    For more information on booting nodes, see your Sun Cluster system administration documentation.

  12. Shut down Node B.

    For the procedure about how to shut down and power off a node, see your Sun Cluster system administration documentation.

  13. Is any storage array that you are removing the last storage array connected to an FC switch that is on Node B?

    • If no, skip to Step 17.

    • If yes, disconnect the fiber-optic cable that connects this FC switch to Node B.

    For the procedure about how to remove a fiber-optic cable, see the Sun StorEdge T3 and T3+ Array Configuration Guide.

  14. Do you want to remove the host adapters from Node B?

    • If no, skip to Step 17.

    • If yes, power off Node B.

  15. Remove the host adapters from Node B.

    For the procedure about how to remove host adapters, see the documentation that shipped with your nodes.

  16. Without enabling the node to boot, power on Node B.

    For more information, see your Sun Cluster system administration documentation.

  17. Boot Node B into cluster mode.

    For more information on booting nodes, see your Sun Cluster system administration documentation.

  18. On all nodes, update the /devices and /dev entries.
    # devfsadm -C 
# devfsadm

  19. On all nodes, update the paths to the DID instances.
    # scdidadm -C 
# scdidadm -r
    .

  20. Return the resource groups and device groups that you identified in Step 4 to all nodes.
    # scswitch -z -g resource-group -h nodename
# scswitch -z -D device-group-name -h nodename

 		 
 
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