SPARC: How to Add Sun StorEdge 9900 Dynamic Link Manager Software

Use this procedure to add Sun StorEdge 9900 Dynamic Link Manager (Sun SDLM) software in a running cluster.

Do not use this procedure to convert from host-based mirroring to a multipathing solution. For the procedure on how to convert from host-based mirroring to a multipathing solution, contact your Sun service provider.

Perform this procedure on one node at a time. This procedure defines Node N as the node on which you are installing the multipathing software.

Before You Begin

This procedure assumes that you installed and configured your storage array. If you have not installed your storage array, see SPARC: How to Install Sun StorEdge 9900 Dynamic Link Manager Software to add multipathing software and the storage array at the same time.

Steps

1. Determine the resource groups and device groups that are running on Node N.

   Record this information because you use this information in Step 11 of this procedure to return resource groups and device groups to these nodes.

   # scstat

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

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

   # scswitch -S -h from-node

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

3. Do you need to install additional physical paths between Node N and the storage?

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   Note –

   If you use multipathing software, each node requires two paths to the same set of LUNs. For an example configuration, see Figure 2–1.

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   • If no, skip to Step 8.

   • If yes, proceed to Step 4.

   For the procedure on how to install host adapters, see the documentation that shipped with your host adapters and nodes.

4. Shut down and power off Node N.

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

5. Install the host adapters and the cables between Node N and the storage.

   For the procedure on how to install host adapters, see the documentation that shipped with your host adapters and nodes.

6. Power on and boot Node N into non-cluster mode.

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

7. If necessary, upgrade the host adapter firmware on Node N.

   PatchPro is a patch-management tool that eases the selection and download of patches required for installation or maintenance of Sun Cluster software. PatchPro provides an Interactive Mode tool especially for Sun Cluster. The Interactive Tool makes the installation of patches easier. PatchPro's Expert Mode tool helps you to maintain your configuration with the latest set of patches. Expert Mode is especially useful for obtaining all of the latest patches, not just the high availability and security patches.

   To access the PatchPro tool for Sun Cluster software, go to http://www.sun.com/PatchPro/, click Sun Cluster, then choose either Interactive Mode or Expert Mode. Follow the instructions in the PatchPro tool to describe your cluster configuration and download the patches.

   For third-party firmware patches, see the SunSolve^SM Online site at http://sunsolve.ebay.sun.com.

8. Install and configure Sun SDLM software on Node N, and apply required patches for Sun SDLM software support on Node N.

   For instructions on how to install and configure the Sun SDLM software, see the documentation that shipped with your storage array.

9. Did you perform a reconfiguration reboot when you configured Sun SDLM software?

   • If yes, proceed to Step 10.

   • If no, perform a reconfiguration reboot to create the new Solaris device files and links on Node N.

     # boot -r

10. On Node N, update the paths to the device ID instances.

    # scdidadm -C # scdidadm -r

11. Return the resource groups and device groups that you identified in Step 1 to Node N.

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

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

12. On all remaining nodes and one node at a time, repeat Step 1 through Step 11.