Installing and Maintaining a Sun StorEdge 6120 Array
This chapter contains the procedures about how to install, configure, and maintain a Sun StorEdge 6120 array in dual-controller configurations and in single-controller configurations. These procedures are specific to a Sun StorEdge 6120 array in a Sun Cluster environment.
This chapter contains the following procedures.
Installing Storage Arrays
This section contains the procedure for an initial installation of single-controller configurations and dual-controller configurations in a new Sun Cluster configuration. If you are adding a dual-controller configuration to an existing cluster, use the procedure in How to Add a Dual-Controller Configuration. If you are adding a single-controller configuration to an existing cluster, use the procedure in How to Add a Single-Controller Configuration.
You can install your storage array in several different configurations. Use the Sun StorEdge 6120 Array Installation Guide to evaluate your needs and determine which configuration is best for your situation.
The following figures illustrate example configurations.
Figure 1-1 shows two storage arrays, and two have controllers. The two storage arrays connect to a 2-node cluster through two switches. Dual-controller configurations require software RAID-1 (host-based mirroring).
Figure 1-1 Installing a 1x1 Configuration With Software RAID-1

Figure 1-2 shows four storage arrays, and two have controllers. The first storage array without a controller connects to the second storage array, which has a controller. The third storage array without a controller connects to the fourth storage array, which as a controller. The two storage arrays with controllers connect to a 2-node cluster through two switches. Dual-controller configurations require software RAID-1 (host-based mirroring).
Figure 1-2 Installing a 1x2 Configuration With Software RAID-1

Figure 1-3 shows two storage arrays, and two have controllers. The two storage arrays are daisy-chained. The two storage arrays connect to a 2-node cluster through two switches.
Figure 1-3 Installing a 2x2 Configuration

Figure 1-4 shows four storage arrays, and two have controllers. All storage array are daisy-chained in the following order: alternate master, master, alternate master, and master. The two storage arrays with controllers connect to a 2-node cluster through two switches.
Figure 1-4 Installing a 2x4 Configuration

How to Install a Single-Controller Configuration
Use this procedure to install a storage array in a single-controller configuration before you install the Solaris operating environment and Sun Cluster software on your nodes. To add a storage array to an existing cluster, use the procedure in How to Add a Single-Controller Configuration.
Install the host adapters in the nodes that are to be connected to the storage array.
For the procedure about how to install host adapters, see the documentation that shipped with your host adapters and nodes.
Install the Fibre Channel (FC) switches.
For the procedure about how to install FC switches, see the documentation that shipped with your FC switch hardware.
Set up a Reverse Address Resolution Protocol (RARP) server on the network on which the new storage array is to reside.
Use the RARP server to set up the following network settings.
IP address
gateway (if necessary)
netmask (if necessary)
hostname
For the procedure about how to set up a RARP server, see the Sun StorEdge 6120 Array Installation Guide.
Cable the storage arrays.
For the procedures on how to connect your storage array, see the Sun StorEdge 6120 Array Installation Guide.
Connect the storage arrays to the FC switches by using fiber-optic cables.
Connect the Ethernet cables from each storage array to the Local Area Network (LAN).
If necessary, install the interconnect cables between storage arrays.
Connect the power cords to each storage array.
Power on the storage array.
Verify that all components are powered on and functional.
Note - The storage array might require a few minutes to boot.
For the procedure about how to power on a storage array, see the Sun StorEdge 6120 Array Installation Guide.
Install any required controller firmware for the storage arrays.
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.
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.
Ensure that the mp_support parameter for each storage array is set to none.
For more information, see the Sun StorEdge 6020 and 6120 Array System Manual.
Ensure that all storage array controllers are ONLINE.
For more information about how to bring controllers online, see the Sun StorEdge 6020 and 6120 Array System Manual.
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.
On all nodes, install the Solaris operating environment. Apply any required Solaris patches for Sun Cluster software and storage array support.
For the procedure about how to install the Solaris operating environment, see your Sun Cluster software installation documentation.
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.
On each node, ensure that the mpxio-disable parameter is set to yes in the /kernel/drv/scsi_vhci.conf file.



