3.1 Control/Sense Commands

 

 

 

Table 3.2

Persistent reservation type codes

 

 

 

 

 

 

 

Code

Name

 

Description

 

 

 

 

 

 

 

 

0h

Reserved

 

 

 

 

 

 

 

 

 

 

1h

Write

Reads Shared:

Any initiator can execute read commands

 

 

 

Exclusive

Writes Exclusive:

Except by an initiator holding a persistent reservation, a write

 

 

 

 

 

 

 

 

 

command executed by any initiator causes a reservation

 

 

 

 

 

conflict.

 

 

 

 

 

 

 

 

2h

Reserved

 

 

 

 

 

 

 

 

 

 

3h

Exclusive

Reads Exclusive:

A read command executed by any initiator except an initiator

 

 

 

Access

 

holding a persistent reservation causes a reservation conflict.

 

 

 

 

Writes Exclusive: A write command executed by any initiator except an initiator

 

 

 

 

 

holding a persistent reservation causes a reservation conflict.

 

 

 

 

 

 

 

 

4h

Reserved

 

 

 

 

 

 

 

 

 

 

5h

Write

Reads Shared:

Any initiator can execute read commands

 

 

 

Exclusive-

Writes Exclusive:

A write command executed by any initiator whose reservation

 

 

 

Registrants

 

 

 

 

key is not registered using the Register service action causes a

 

 

 

Only

 

 

 

 

 

reservation conflict.

 

 

 

 

 

 

 

 

 

 

 

 

 

6h

Exclusive

Reads Exclusive:

A read command executed by any initiator whose reservation

 

 

 

Access-

 

key is not registered using the Register service action causes a

 

 

 

Registrants

 

reservation conflict.

 

 

 

Only

Writes Exclusive:

A write command executed by any initiator whose reservation

 

 

 

 

 

 

 

 

 

key is not registered using the Register service action causes a

 

 

 

 

 

reservation conflict.

 

 

 

 

 

 

 

C141-E167

3 - 55

Page 116 Page 118
Page 117
Image 117
Fujitsu MAS3735, MAP3367, MAP3147, MAP3735, MAS3367 specifications Persistent reservation type codes
Page 116 Page 118

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.
Top Page Image Contents