C H A P T E R  5

Data Hosts, HBAs, and Other Software

This chapter describes how to install data host software, HBAs, and other software on different host platforms. It contains the following sections:

Data Host Software

The data host software contains tools that manage the data path I/O connections between the data host and the array. This includes drivers and utilities that enable array management hosts to connect to, monitor, and transfer data in a storage area network (SAN).

Note - Some management hosts can also be used as data hosts.

HBAs and Drivers

Host Bus Adapters (HBAs) are network interface cards that manages all data I/O on your data host. The specific HBAs you need depend on the data host server platform, operating system, and data transfer rates used in your storage area network. HBAs must be ordered separately, from Sun or their respective manufacturers. Sun HBAs can be ordered from:


The required versions of HBA drivers must be installed on the data host before you can set up a data host. The Sun StorageTek 6540 Array Release Notes lists the data host requirements for HBAs and drivers. Refer to the specific vendor HBA documentation for instructions on installing HBA drivers.


Data host software controls the data path between the data host and the array. Since there can be more than one path between the host and the array for redundancy, this function is called multipathing.

You must install data host software (including multipathing) on each data host that communicates with the Sun StorageTek 6540 Array. For Solaris OS 8 and 9 data hosts, the multipathing software is part of the Sun StorEdge SAN 4.4 software. Multipathing is included in Solaris OS 10.

For multipathing support on data host platforms running non-Solaris operating systems such as Windows, Linux, Novell Netware, IBM AIX, or others, you can use the Sun StorageTek RDAC Driver software or other multipathing software as listed in the Sun StorageTek 6540 Array Release Notes.

Setting Up a Data Host On a Solaris System

The Sun StorageTek 6540 Array provides data path support for data hosts running Solaris, Windows 2000, Windows Server 2003, Red Hat Linux, HP-UX, NetWare, and IBM AIX operating systems. This section applies to hosts running Solaris OS 8, 9, and 10.

See the Sun StorageTek 6540 Array Release Notes for the latest supported operating system versions.

Note - To install data host software on systems that are not running the Solaris OS, see Installing Data Host Software for Operating Systems Other Than Solaris.

You must install data host software (including multipathing) on each data host that communicates with the Sun StorageTek 6540 Array. Multipathing is included in the Solaris OS 10. For Solaris OS 8 and 9 data hosts, you need the Sun StorEdge SAN Foundation Kit software (which includes the multipathing software).

To install data host software on Solaris OSs, see the following sections:

procedure icon  Obtaining Sun Solaris 8 and 9 Data Host Software

Obtain Sun Solaris OS 8 and 9 data host software as follows:

1. Go to the Sun Microsystems web page (sun.com).

The Sun home page is displayed.

2. Select Downloads from the home page navigation bar.

The Downloads page is displayed (it is not labeled).

3. On the View by Category tab, select System Administration>Storage Management.

The Storage Management page is displayed, showing a list of downloadable storage-related products.

4. Select the StorEdge SAN 4.4 product.

The login page is displayed.

5. Login using your Sun account ID.

The SAN 4.4.x Download page is displayed.

6. Accept the License Agreement and select the SAN 4.4 version required for your operating system.

The data host software version you need depends on your operating system. See the Sun StorageTek 6540 Array Release Notes for the current data host software requirements. Download the SAN 4.4.x Base Kit (if you do not already have it installed), and the latest patch version as recommended in the release notes.

There is a README file available on the SAN 4.4.x Download page with instructions for unpacking and installing the download file on your data host computer.

procedure icon  To Install the SAN_4.4 Data Host Software

To launch the host software installer:

1. Log in to the host as root.

2. Change to the SAN_4.4.xx_install_it directory in which the compressed installation file was unpacked:

cd <user-specified location>/SAN_4.4..xx_install_it

where xx is the software version number of the installed files.

3. Start the host software installer by typing the following command:


When the installation is complete, the root prompt returns.

4. Enable the Sun StorEdge Traffic Manager multipathing software (see Enabling Multipathing Software).

Installing Data Host Software for Operating Systems Other Than Solaris

To install data host software for operating systems other than Solaris, see the following sections:

About Data Host Software For Non-Solaris Platforms

The data host software for Red Hat Linux and Windows platforms is Sun Redundant Dual Array Controller (RDAC), and is available from the Sun Download Center (SDLC). Data host software for HP-UX and AIX platforms is Veritas Dynamic MultiProcessing (DMP), which is part of the Veritas Volume Manager. Download the AIX ASL from http://support.veritas.com. The AIX ASL is available only from Veritas. Contact Veritas for HP-UX DMP. The Novell Netware OS requires Netware Multiprocessing Executive (MPE). Netware is available only from Novell.

See the Sun StorageTek 6540 Array Release Notes for a list of supported operating systems, patches, and HBAs.

Downloading and Installing Sun RDAC Software

1. To download the latest version of Sun RDAC software (support for Windows and Linux multipathing), go to:


and select Hardware Drivers>Storage.

2. Select the link for the Windows or Linux RDAC.

An RDAC Driver download page is displayed.

3. Click Download.

4. Log in using your SDLC user name and password.

If you have not already registered, click Register Now.

5. Read and accept the license agreement.

6. Select the link for the data host platform that you want to install.

7. Save the install package to a temporary directory.

8. Uncompress and untar the install package.

9. When the download is finished, log out of the SDLC.

A readme file is provided as part of the installation package. To install the software, refer to the readme file for platform-specific instructions.

procedure icon  To Download the AIX ASL Package

1. Go to the Veritas AIX ASL page:


A page displays with the ASL installation instructions.

2. Read the instructions and click Download Now.

3. Follow the instructions to uncompress and install the ASL.

Enabling Multipathing Software

Sun StorEdge SAN Foundation software includes the Sun StorEdge Traffic Manager multipathing software.

The procedure you use to enable multipathing software depends on the version of Solaris OS running on the host:

procedure icon  Enabling Multipathing Software for Solaris 8 or 9 OS

To enable the multipathing software on hosts running Solaris OS 8 or 9:

1. Open the /kernel/drv/scsi_vhci.conf file with a text editor.

2. Set mpxio-disabling”; in the file.

3. Set load-balance=”round-robin”; in the file.

4. Set auto-failback=”enable”; in the file.

5. Save the updated file.

6. Reboot the host.

7. Use the cfgadm command to configure HBA paths.

How you configure paths depends on how you are using your arrays in a SAN or direct attach environment. See the Sun StorageTek SAN Foundation Software 4.4 Configuration Guide for information about configuring paths.

procedure icon  Enabling Multipathing Software for Solaris 10 OS

To enable multipathing software for all Fibre Channel (FC) ports on hosts running Solaris OS 10:

1. Type the following command:

# stmsboot -e

Note - See the stmsboot(1M) manpage for complete details.

You are prompted to confirm the command:

WARNING: This operation will require a reboot.

Do you want to continue ? [y/n] (default: y)

2. Press the Return key to reboot the host.

Downloading the Veritas Volume Manager ASL

Veritas Volume Manager provides support for the Sun StorageTek 6540 Array in the form of the Array Support Library (ASL). If you are using the Veritas Volume Manager on your array (recommended), you will need the ASL. There are ASL software packages for the Solaris 8, 9, and 10 OSs, and for the IBM AIX 5.1 and 5.2 OSs. The ASL must be installed on the same host system as the Volume Manager software to enable it to recognize the Sun StorageTek 6540 Array trays.

procedure icon  To Download the Solaris ASL Package

1. Log in as superuser on the Sun server to be connected to the array.

2. Go to the Products Download page:


3. In the Search area, search for Veritas ASL, and click on the resulting link.

The Products Downloads > Veritas Volume Manager ASL page is displayed.

4. Click Download.

5. If you have not previously registered, register as follows:

a. Click the Register Now link at the bottom of the left column.

b. On the registration page, complete the required fields and click Register.

6. Log in:

a. Type your user name and password in the left column, and click Login.

b. On the Terms of Use page, read the license agreement, click Yes to Accept, and click Continue.

7. Download the compressed zip file that contains the ASL package for the Sun StorageTek 6540 array and README file.

8. Use the unzip command to extract the files.

9. Refer to the README file for instructions on installing the Veritas Volume Manager ASL.

Next Steps

After you have installed and enabled multipathing on the data hosts, configure IP addressing on the array controllers as described in Chapter 6.