test

Sun Cluster 2.2 System Administration Guide

Administering Sun StorEdge MultiPacks and Sun StorEdge D1000s

This section describes procedures for administering Sun StorEdge MultiPack and Sun StorEdge D1000 components. Use the procedures described in your server hardware manual to identify the failed component.

Repairing a Lost Sun StorEdge MultiPack or Sun StorEdge D1000 Connection

When a connection from a disk enclosure to one of the cluster nodes fails, the failure is probably due to a bad SCSI-2 cable or an SBus card.

In any event, the node on which the failure occurred will begin generating errors when the failure is discovered. Later accesses to the disk enclosure will generate additional errors. The node will exhibit the same behavior as though power had been lost to the disk enclosure.

I/O operations from the other nodes in the cluster are unaffected by this type of failure.

To diagnose the failure, use the procedures for testing the card module in the service manual for your Sun Cluster node to determine which component failed. You should free up one node and the disk enclosure that appears to be down, for hardware debugging.

How to Repair a Lost Sun StorEdge MultiPack or Sun StorEdge D1000 Connection

  1. Prepare the Sun Cluster system for component replacement.

    Depending on the cause of the connection loss, prepare the Sun Cluster node with one of the following procedures.

    • If the failed component is an SBus card, see Chapter 7, Administering Server Components, to prepare the Sun Cluster node for power down.

    • If the problem is a bad SCSI-2 cable, the volume management software will have detected the problem and prepared the system for cable replacement.

  2. Replace the failed component.

    If the SCSI-2 cable or SBus card fails, refer to the service manual for your Sun Cluster node for detailed instructions on replacing them.

  3. Recover from volume management software errors.

    Use the procedures described in "Recovering From Power Loss".

Adding a Sun StorEdge MultiPack or Sun StorEdge D1000

You can add Sun StorEdge MultiPacks or Sun StorEdge D1000s to a Sun Cluster configuration at any time.

You must review the disk group configuration in your Sun Cluster configuration before adding a disk enclosure. The discussions in Chapter 2 in the Sun Cluster 2.2 Software Installation Guide, and in Appendix A, Administering Volume Managers, in this book, will help determine the impact of the disk enclosure on the configuration of disk groups.

How to Add a Sun StorEdge MultiPack or Sun StorEdge D1000

  1. Shut down one of the cluster nodes.

    Use the procedure in "Stopping the Cluster and Cluster Nodes", to shut down the node.

  2. Install an additional SBus card in the node, if necessary.

    Use the instructions in the hardware service manual for your Sun Cluster node to install the SBus card.

    Note -

    Install the SBus card in the first available empty SBus slot, following all other cards in the node. This ensures that the controller numbering will be preserved if the Solaris operating environment is reinstalled. Refer to "Instance Names and Numbering", for more information.

  3. Connect the SCSI-2 cables to the disk enclosure.

    Use the instructions in the hardware service manual for your Sun Cluster node.

  4. Set the SCSI initiator ID, as appropriate.

    Use the instructions in the hardware service manual for your Sun Cluster node.

  5. Perform a reconfiguration reboot of the node. 


    ok boot -r

  6. Use the haswitch(1M) command to switch ownership of all logical hosts that can be mastered to the rebooted node.


    phys-hahost1# haswitch phys-hahost2 hahost1 hahost2

  7. Repeat Step 1 through Step 5 on other nodes connected to this disk enclosure.

  8. Switch ownership of the logical hosts back to the appropriate default master if necessary.

    For example:


    phys-hahost1# haswitch phys-hahost2 hahost2

  9. Add the disks in the disk enclosures to the selected disk group.

    Use the instructions in your volume manager documentation to add the disks to the selected disk group(s). Also, refer to appendixes in the Sun Cluster 2.2 Software Installation Guide for information on Solstice DiskSuite or VxVM.