Glossary

Axial acceleration

Acceleration in the recording layer along the line perpendicular to the disk reference surface at a specified rotation speed. Axial acceleration is detected by optical means.

Bus Condition

This is an asynchronous condition for changing the status transition on the SCSI bus. There are two types, the ATTENTION condition and the RESET condition.

Bus Phase

This is the name given to the SCSI bus state. The SCSI bus is in one state or another, the BUS FREE phase, the ARBITRATION phase, the SELECT phase, the RESELECTION phase or the INFORMATION TRANSFER phase. In addition, the INFORMATION TRANSFER phase is subdivided into the DATA IN, DATA OUT, COMMAND, STATUS, MESSAGE AND MESSAGE OUT phases in accordance with the type of information being transferred in the INFORMATION TRANSFER phase.

CCS

Common Command Set

This is the standard form of SCSI logical specifications stipulated by the operations subcommittee of the American National Standards Institute (ANSI) which stipulates functions which a direct access device (magnetic disk, etc.) should support.

CDB

Command Descriptor Block

A series of data which describes commands related to input/output operations, sent from the initiator to the target.

Command

This is a command to a target to perform an input/output operation, and it is described as the CDB.

Disconnect

This is processing which temporarily frees the connected state of the target with the SCSI bus and the initiator at the point in the target's command processing execution process when operations on the SCSI bus are not needed.

C141-E167

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Fujitsu MAS3367, MAP3367, MAP3147, MAS3735, MAP3735 specifications Glossary
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MAP3735, MAP3147, MAS3367, MAP3367, MAS3735 specifications

Fujitsu, a renowned leader in technology and innovation, has developed a variety of reliable hard disk drives (HDDs) that cater to a wide range of data storage needs. Among these, the MAS3735, MAP3367, MAS3367, MAP3147, and MAP3735 series stand out for their advanced features and exceptional performance.

The MAS3735 is a high-capacity enterprise-class drive that boasts a storage capacity of up to 300 GB. Its 10,000 RPM spindle speed ensures rapid data retrieval and efficient performance, making it ideal for data-intensive applications. It utilizes a Serial Attach SCSI (SAS) interface, which allows for improved data transfer rates and increased reliability compared to traditional SATA drives. The drive is designed with advanced technologies such as error recovery and data integrity features, ensuring the safety and security of critical data.

Similarly, the MAP3367 and MAS3367 models are geared towards both enterprise and mid-range server environments, providing a storage capacity of up to 300 GB as well. These drives also operate at a spindle speed of 15,000 RPM, offering swift access times that enhance overall system performance. The MAP3367 employs the Ultra 320 SCSI interface, allowing for significant bandwidth and ensuring data is transmitted efficiently.

On the other hand, both MAP3147 and MAP3735 models provide versatile solutions for various applications, supporting capacities from 36 GB to 147 GB. The MAP3147, with its 10,000 RPM speed, is optimized for workloads requiring quick access and high throughput, making it suitable for transactional systems and enterprise applications. The MAP3735, while offering comparable capacity, emphasizes exceptional reliability and durability, which is crucial for environments that involve heavy data loads.

All these Fujitsu HDDs are characterized by their robust construction, reliability, and efficiency. They are built to withstand heavy workloads and are equipped with features like advanced thermal management and acoustic noise reduction, ensuring they operate effectively in data center environments.

In conclusion, Fujitsu's MAS3735, MAP3367, MAS3367, MAP3147, and MAP3735 series HDDs are designed for high performance and reliability, catering to both enterprise and mid-range environments. Their advanced features make them a strong choice for businesses looking to enhance their storage solutions while maintaining data integrity and system performance.
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