Where to Go From Here

To remove a logical volume, see the Sun StorEdge 6020 and 6120 Array System Manual.

Maintaining Storage Arrays

This section contains the procedures about how to maintain a storage array in a running cluster. Table 1-2 lists these procedures.

Note - When you upgrade firmware on a storage device or on an enclosure, redefine the stripe size of a LUN, or perform other LUN operations, a device ID (DID) might change unexpectedly. When you perform a check of the DID configuration by running the scdidadm -c command, the following error message appears on your console if the DID changed unexpectedly.

 device id for nodename:/dev/rdsk/cXtYdZsN does not match physical 
device's id for ddecimalnumber, device may have been replaced.

To fix DIDs that report this error, run the scdidadm -R command for each affected device.

Table 1-2 Task Map: Maintaining a Storage Array

The following is a list of administrative tasks that require no cluster-specific procedures. See the Sun StorEdge 6020 and 6120 Array System Manual for the following procedures.

• Adding an expansion unit.

• Removing an expansion unit.

• Replacing an expansion unit.

• Adding a disk drive.

• Replacing a failed disk drive.

• Removing a disk drive.

• Replacing an Ethernet cable.

• Replacing a power cable on the storage array.

• Replacing a Power and Cooling Unit (PCU).

• Replacing a chassis.

• Replacing a controller.

• Replacing a storage array-to-switch component in a dual-controller configuration.

  A storage array-to-switch component includes all of the following components.

  • Fiber-optic cable that connects an FC switch to a storage array

  • FC switch GBIC or an SFP that connects an FC switch to a storage array

  • FC switch that connects an FC switch to a storage array

  • FC switch power cord

  • Interconnect cables that connect two storage arrays

  • Interconnect cards

How to Upgrade Storage Array Firmware

Use this procedure to upgrade storage array firmware in a running cluster. Storage array firmware includes controller firmware, unit interconnect card (UIC) firmware, EPROM firmware, and disk drive firmware.

1. Stop all I/O to the storage arrays you are upgrading.

2. Apply the controller, disk drive, and UIC firmware patches.

   For the list of required storage array patches, see the Sun StorEdge 6120 Array Release Notes. For the procedure about how to apply firmware patches, see the firmware patch README file. For the procedure about how to verify the firmware level, see the Sun StorEdge 6020 and 6120 Array System Manual. For the procedure about how to reset a storage array, see the Sun StorEdge 6020 and 6120 Array System Manual.

3. Confirm that all storage arrays that you upgraded are visible to all nodes.

   # luxadm probe

4. Restart all I/O to the storage arrays. You stopped all I/O to these storage arrays in Step 1.

How to Add a Single-Controller Configuration

Use this procedure to add a single-controller configuration to a running cluster. This storage array reside in a single-controller configuration. To install a single-controller to a cluster that is not yet running Sun Cluster software, use the procedure in How to Install a Single-Controller Configuration.

This procedure defines Node N as the node with which you begin working.

How to Perform Initial Configuration Tasks on the Storage Array

1. Power on the storage array.

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   Note - the storage array might require a few minutes to boot.

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   For the procedure about how to power on a storage array, see the Sun StorEdge 6120 Array Installation Guide.

2. Administer the storage array's network settings. Network settings include the following settings.

   • IP address

   • gateway (if necessary)

   • netmask (if necessary)

   • hostname

   For the procedure about how to set up an IP address, gateway, netmask, and hostname on a storage array, see the Sun StorEdge 6020 and 6120 Array System Manual.

3. Ensure that the cache and mirror settings for each storage array are set to auto.

   For more information, see the Sun StorEdge 6020 and 6120 Array System Manual.

4. Ensure that the mp_support parameter for each storage array is set to none.

   For more information about, see the Sun StorEdge 6020 and 6120 Array System Manual.

5. Install any required controller firmware for the storage arrays you are adding.

   For the required controller firmware for the storage array, see the Sun StorEdge 6120 Array Release Notes.

   See the Sun Cluster release notes documentation for information about accessing Sun's Info Docs on http://sunsolve.sun.com. The Info Docs list information about required patches and firmware that are available for download. For the procedure about how to apply host adapter firmware, see the firmware patch README file.

6. Reset the storage array to update the network settings and system settings that you changed.

   For the procedure about how to reboot or reset a storage array, see the Sun StorEdge 6020 and 6120 Array System Manual.

7. Confirm that all storage arrays that you upgraded are visible to all nodes.

   # luxadm probe