HP Ultra320 A7173A manual Vcci

Models: Ultra320 A7173A

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Read-Only

Memory from which information can be read but not changed. The contents of ROM are not

Memory (ROM)

erased when the computer is turned off.

Reduced

The HP A7173A adapter’s SCSI chips contain a RISC processor.

Instruction Set

 

Computer (RISC)

 

core

 

S

 

SCSI bus

A host bus adapter and one or more SCSI peripherals connected by cables in a linear chain

 

configuration. The host bus adapter can exist anywhere on the chain, allowing connection of

 

both internal and external SCSI devices.

SCSI device

Any device conforming to the SCSI standard that attaches to the SCSI bus by means of a SCSI

 

cable. This includes SCSI host bus adapters and SCSI peripherals.

SCSI ID

A unique identification for each SCSI device on the SCSI bus. Each SCSI bus has fifteen available

 

SCSI IDs numbered 0 through 15 for Wide SCSI or 0-7 for 8-bit SCSI. The host bus adapter is

 

usually assigned ID 7, which gives it priority to control the bus.

SCSI-3

The current SCSI specification that defines the command formats used in the SCSI protocol.

SE

See Single-Ended.

Single-Ended

A hardware specification for connecting SCSI devices. It references each SCSI signal to a common

 

ground, as opposed to differential SCSI and low-voltage differential SCSI, which use a separate

 

return for each signal.

small computer

A specification for a high-performance peripheral bus and command set. The original standard

system interface

is now referred to as SCSI-1.

(SCSI)

 

SPI-4

The SCSI Parallel Interface Specification for ultra320 SCSI componenets.

synchronous data

One of the ways data is transferred over the SCSI bus. Transfers are clocked with fixed-frequency

transfer

pulses.

system firmware

Controls the low level POST (Power On Self Test) and basic operation of the CPU and computer

 

system.

T

 

termination

The electrical connection required at each end of the SCSI bus, composed of a set of resistors.

U

 

Ultra SCSI

A standard for SCSI data transfers. It allows a transfer rate of up to 20 MBytes/sec over an 8-bit

 

SCSI bus, and up to 40 MBytes/sec over a 16-bit SCSI bus. The STA (SCSI Trade Association)

 

supports using the term “Ultra SCSI” over the older term “Fast-20.”

Ultra160 SCSI

(Also called Ultra3 SCSI) A standard for SCSI data transfers. It allows a data transfer rate of up

 

to 160 MBytes/second over a 16-bit SCSI bus. The bus width is always 16 bits.

Ultra2 SCSI

A standard for SCSI data transfers. It allows a transfer rate of up to 40 MBytes/sec over an 8-bit

 

SCSI bus, and up to 80 MBytes/sec over a 16-bit SCSI bus. The STA (SCSI Trade Association)

 

supports using the term “Ultra2 SCSI” over the older term “Fast-40.”

Ultra320 SCSI

A standard for SCSI data transfers. It allows a data transfer rate of up to 320 MBytes/second

 

over a 16-bit SCSI bus. The bus width is always 16 bits.

V

 

VCCI

Voluntary Control Council for Interference.

VHDCI

Very High Density Cable Interconnect.

80 Glossary

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HP Ultra320 A7173A manual Vcci

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.