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Sun Cluster 3.0 U1 Hardware Guide

How to Move a Disk Cable From One Node to Another

Use this procedure to move a disk cable from one node to another node.

Caution - Caution -

Failure to follow this cabling procedure might introduce invalid device IDs (DIDs) and render the devices inaccessible.

  1. Delete all references to the DID device path you want to remove from all volume manager and data service configurations.

    For more information, see the Sun Cluster 3.0 U1 Data Services Installation and Configuration Guide and your Solstice DiskSuite or VERITAS Volume Manager documentation.

  2. Stop all I/O to the affected disk(s).

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

  3. Unplug the cable from the old node.

  4. From the old node, unconfigure all drives that are affected by the recabling.


    # cfgadm

    Or reboot the old node. 


    # reboot -- -r

  5. From the old node, update the Solaris device link.


    # devfsadm -C

  6. From the old node, update the DID device path.


    # scdidadm -C

  7. Connect the cable to the new node.

  8. From the new node, configure the drives in the new location.


    # cfgadm

    Or reboot the new node. 


    # reboot -- -r

  9. From the new node, create the new Solaris device links.


    # devfsadm

  10. From the new node, add the new DID device path.


    # scgdevs

  11. Add the DID device path on the new node to any volume manager and data service configurations that are required.

    When you configure data services, check that your node failover preferences are set to reflect the new configuration.

    For more information, see the Sun Cluster 3.0 U1 Data Services Installation and Configuration Guide and your Solstice DiskSuite or VERITAS Volume Manager documentation.

Where to Go From Here

If you did not follow this procedure correctly, you might see an error the next time you run the scdidadm -r command or the scgdevs command. If you see an error message that says did reconfiguration discovered invalid diskpath, go to "How to Update Sun Cluster Software to Reflect Proper Device Configuration".