How to Add a Dual-Controller Configuration
Use this procedure to add a dual-controller configuration to a running cluster. To install a dual-controller configuration to a cluster that is not yet running Sun Cluster software, use the procedure in How to Install a Dual-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
Power on the storage arrays.
Note - The storage arrays might require several minutes to boot.
For the procedure about how to power on storage arrays, see the Sun StorEdge 6120 Array Installation Guide.
Administer the storage array's network settings. Network settings include the following settings.
IP address
gateway (if necessary)
netmask (if necessary)
hostname
Assign an IP address to the master controller unit only. The master controller unit is the storage array that has the interconnect cables attached to the second port of each interconnect card.
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.
Ensure that each storage array has a unique target address.
For the procedure about how to assign a target address to a storage array, see the Sun StorEdge 6020 and 6120 Array System Manual.
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 mpxio.
For more information, see the Sun StorEdge 6020 and 6120 Array System Manual.
Install any required controller firmware for the storage arrays you are adding.
Use the telnet command to access the master controller unit and administer the storage arrays. The master controller unit is the storage array that has the interconnect cables attached to the second port of each interconnect card, when viewed from the rear of the storage arrays.
For the required controller firmware for the storage array, see the Sun StorEdge 6120 Array Release Notes.
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.
How to Connect the Storage Array to FC Switches
Install the GBICs or SFPs in the storage array that you plan to add.
For the procedure about how to install a GBICs or SFPs, see the Sun StorEdge 6120 Array Installation Guide.
If necessary, install GBICs or SFPs in the FC switches.
For the procedure about how to install a GBIC or an SFP, see the documentation that shipped with your FC switch hardware.
Install the Ethernet cable between the storage arrays and the local area network (LAN).
If necessary, daisy-chain or interconnect the storage arrays.
For the procedure about how to install interconnect cables, see the Sun StorEdge 6120 Array Installation Guide.
Install a fiber-optic cable between each FC switch and both new storage arrays of the partner group.
For the procedure about how to install a fiber-optic cable, see the Sun StorEdge 6120 Array Installation Guide.
How to Connect the Node to the FC Switches or the Storage Array
Determine the resource groups and device groups that are running on all nodes.
Record this information because you use this information in Step 20 of this procedure to return resource groups and device groups to these nodes.
# scstat
Move all resource groups and device groups off Node N.
# scswitch -S -h from-node
Do you need to install host adapters in Node N?
Is the host adapter that you that are installing the first host adapter on Node N?
If no, skip to Step 6.
If yes, determine whether the required drivers for the host adapter are already installed on this node. For the required packages, see the documentation that shipped with your host adapters.
Are the required support packages already installed?
If yes, skip to Step 6.
If no, install the packages.
The support packages are located in the Product directory of the Solaris CD-ROM.
Shut down and power off Node N.
For the procedure about how to shut down and power off a node, see your Sun Cluster system administration documentation.
Install the host adapters in Node N.
For the procedure about how to install host adapters, see the documentation that shipped with your host adapters and nodes.
Power on and boot Node N into noncluster mode.
For more information about how to boot nodes, see your Sun Cluster system administration documentation.
If necessary, upgrade the host adapter firmware on Node N.
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.
If necessary, install a GBIC or an SFP in the FC switch or the storage array.
For the procedure about how to install a GBIC or an SFP, see the documentation that shipped with your FC switch hardware. For the procedure on how to install a GBIC or an SFP, see the Sun StorEdge 6120 Array Installation Guide.
Connect a fiber-optic cable between the FC switch and Node N.
For the procedure about how to install a fiber-optic cable, see the Sun StorEdge 6120 Array Installation Guide.
Install the required Solaris patches for storage array support on Node N.
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.
Install any required patches or software for Sun StorEdge Traffic Manager software support to Node N.
For the procedure on how to install the Sun StorEdge Traffic Manager software, see the Sun StorEdge Traffic Manager Installation and Configuration Guide at http://www.sun.com/products-n-solutions/hardware/docs/. For a list of required patches for Sun StorEdge Traffic Manager software, see the Sun StorEdge Traffic Manager Software Release Notes on http://www.sun.com/storage/san.
Edit the /kernel/drv/scsi_vhci.conf file to activate the Sun StorEdge Traffic Manager software functionality. Set the mpxio-disable parameter to no.
Perform a reconfiguration boot on Node N to create the new Solaris device files and links.
On Node N, update the paths to the DID instances.
# scgdevs
If necessary, label the new storage array logical volume.
For the procedure about how to label a logical volume, see the Sun StorEdge 6020 and 6120 Array System Manual.
(Optional) On Node N, verify that the device IDs (DIDs) are assigned to the new storage array.
# scdidadm -l
Repeat Step 2 through Step 18 for each remaining node that you plan to connect to the storage array.
(Optional) Return the resource groups and device groups that you identified in Step 1 to the original nodes.
# scswitch -z -g resource-group -h nodename # scswitch -z -D device-group-name -h nodename
For more information, see your Sun Cluster system administration documentation.
Perform volume management administration to incorporate the new logical volumes into the cluster.
For more information, see your Solstice DiskSuite/Solaris Volume Manager or VERITAS Volume Manager documentation.