How to Replace a Host Adapter

Use this procedure to replace a node's host adapter in a running cluster. This procedure defines Node A as the node with the failed host adapter you are replacing.

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

   Record this information because you use this information in Step 13 of this procedure to return resource groups and device groups to Node A.

   # scstat

2. Move all resource groups and device groups off Node A.

   # scswitch -S -h nodename

3. Is one of the disks in the storage array a quorum device? This array is the array that is attached to the host adapter you are replacing.

   # scstat -q

   • If no, proceed to Step 4

   • If yes, relocate that quorum device to another suitable storage array

     For procedures on adding and removing quorum devices, see your Sun Cluster system administration documentation.

4. Detach the submirror(s) on the storage array.

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

5. Is Node A enabled with the Solaris dynamic reconfiguration (DR) feature?

   • If yes, skip to Step 8

   • If no, proceed to Step 6

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

6. Shut down Node A.

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

7. Power off Node A.

8. Replace the failed host adapter.

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

9. Is Node A enabled with the Solaris dynamic reconfiguration (DR) feature?

   • If yes, skip to Step 12

   • If no, proceed to Step 10

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

10. Power on Node A.

11. Boot Node A into cluster mode.

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

12. If necessary, upgrade the host adapter firmware on Node A.

    See your Sun Cluster release notes documentation for information about how to access Sun's EarlyNotifier web pages, which list information about patches or firmware levels that are available for download. For the procedure about how to apply any host adapter firmware patch, see the firmware patch README file.

13. (Optional) Return the resource groups and device groups you identified in Step 1 to Node A.

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

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

14. Reattach the submirror(s) on the storage array.

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

15. (Optional) Did you relocate the quorum device in Step 1?

    • If no, this step completes the procedure

    • If yes, relocate the quorum device function back to this storage array

      For procedures on adding and removing quorum devices, see your Sun Cluster system administration documentation.