3 Configuring the A7173A Adapter

This chapter contains the following sections describing configuration of the A7173A adapter:

“Setting the SCSI Parameters” (page 23)

“About SCSI IDs” (page 24)

“About the Maximum Data Transfer Rate” (page 24)

“About Bus Width” (page 25)

“About Auto-Termination” (page 26)

“Configuration Worksheet” (page 27)

“Setting and Confirming SCSI Parameters Offline” (page 28)

“Setting and Confirming SCSI Parameters Online” (page 39)

“Setting SCSI Parameters to Default Values” (page 44)

“Configuring LUN 0” (page 44)

“Using the A7173A Adapter as a Boot Device” (page 44)

NOTE: This manual provides installation instructions and technical information for qualified personnel who maintain or service HP-UX systems. Installing the A7173A adapter requires proficiency in both hardware configuration and software administration.

Setting the SCSI Parameters

The following user configurable SCSI parameters can be set offline or online:

SCSI ID

Maximum Data Transfer Rate

Bus Width

If the A7173A adapter is new and it is installed in a slot that has never been configured for a SCSI adapter, the adapter will be set to the following default settings:

SCSI ID = 7

Maximum Data Transfer Rate = MAX (320 MB/s)

Bus Width = 16 bits (Wide)

Even if these default settings are appropriate for your configuration, HP recommends that you confirm the settings and make changes if necessary.

IMPORTANT: When you replace an A7173A adapter, these conditions determine whether the previous settings will be applied to the replacement adapter:

If the replacement adapter is new and has never been installed in a system, then the mpt driver will continue to use the SCSI parameter settings that are already configured for the slot.

If the replacement adapter was previously installed in a different slot or system, then the SCSI parameter settings will not migrate to the new slot or system.

HP recommends that you confirm the settings and make changes if necessary.

The SCSI parameters for A7173A adapters installed in HP 9000 systems can be confirmed or changed offline using the “SCSI” command, which can be accessed from the Boot Console Handler (BCH) menus, see “Using the BCH Menus on HP 9000 Systems” (page 28) for details.

Setting the SCSI Parameters

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HP Ultra320 A7173A manual Configuring the A7173A Adapter, Setting the Scsi Parameters

Ultra320 A7173A specifications

The HP Ultra320 A7173A is a high-performance Storage Area Network (SAN) component, widely recognized for its reliability and efficiency in data storage solutions. Designed to support the demands of enterprise-level applications, this SCSI (Small Computer System Interface) controller excels in providing fast and reliable data transfer, making it a preferred choice for businesses that require robust storage solutions.

One of the standout features of the A7173A is its ultra-fast data transfer rate. It is capable of achieving speeds of up to 320 MB/s, which is made possible through the Ultra320 SCSI technology. This speed enhancement is crucial for applications requiring quick access to large volumes of data, thus improving overall system performance. The controller maintains compatibility with previous SCSI standards, allowing for interoperability in diverse environments and ensuring that organizations can leverage their existing infrastructure.

The A7173A is built on advanced technologies that enhance its performance and reliability. These include intelligent data buffering and error correction mechanisms, which minimize the likelihood of data loss and improve the integrity of information during transfers. Additionally, the controller features multiple device connections, accommodating up to 15 devices on a single chain. This scalability offers flexibility in expanding storage solutions based on organizational needs.

Another significant characteristic of the HP Ultra320 A7173A is its support for a wide range of operating systems. The controller is versatile, allowing it to integrate seamlessly with numerous enterprise platforms. This broad compatibility ensures that IT departments can deploy the A7173A within their existing environments without major adjustments or additional costs.

Moreover, the A7173A comes with comprehensive management features, enabling administrators to monitor and optimize storage performance effectively. These features help in anticipating issues before they escalate, thereby minimizing downtime and facilitating smoother operations.

In essence, the HP Ultra320 A7173A is a comprehensive SAN solution that offers exceptional speed, reliability, and scalability. Its advanced technologies and versatile compatibility make it an ideal component for organizations looking to optimize their data storage infrastructure while ensuring robust performance across diverse applications. Investing in the A7173A can lead to marked improvements in data management, ultimately contributing to business efficiency and continuity.