4.1 Mode Parameters

cache segments are occupied by data to be retained. If the number is at least one, caching functions in the other segments need not be impacted by cache misses to perform the SCSI buffer function. The impact of this field equals 0 or the sum of this field plus this field greater than the buffer size is vendor-specific.

This bit is not supported for the IDD. The IDD disregards the specification in this bit.

4.1.7Control mode parameters (page code = 0A)

The page descriptor format of this MODE SELECT parameter is shown in Figure 4.7.

 

Bit

7

6

 

5

 

4

 

3

 

 

2

 

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

0

0

 

0

0

1

 

 

0

1

0

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

X‘0A’ or X‘06’ (Page Length)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

TST

 

 

 

(Reserved)

 

 

GLTSD

RLEC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

0

 

0

 

0

0

 

 

0

 

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Variable

0

0

 

0

 

0

0

 

 

0

 

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Queue Algorithm Qualifier

 

Reserved

 

 

Qerr

DQue

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

0

 

0

0

 

0

 

 

0

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Variable

1

1

 

1

1

 

0

 

 

0

1

1

 

 

 

 

 

 

 

 

 

 

 

 

4

Reserved

RAC

 

Reserved

 

SWP

 

RAERP

UAAE

EAERP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

0

 

0

0

 

0

 

 

0

 

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Variable

0

0

 

0

0

 

0

 

 

0

 

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

X‘00’ (Reserved)

 

 

 

 

 

 

 

 

 

 

 

 

 

6-7

 

 

 

 

Ready Aer Holdoff Period

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

 

 

 

 

 

X‘0000’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Variable

 

 

 

 

 

X‘0000’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8-9

 

 

 

 

Busy Timeout Period

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

 

 

 

 

 

X‘0000’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Variable

 

 

 

 

 

X‘0000’

 

 

 

 

 

 

 

 

 

 

 

10-11

 

 

 

Extended Self-Test Completion Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

 

 

 

 

 

X‘xxxx’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Variable

 

 

 

 

 

X‘0000’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 4.7 MODE SELECT parameters: control mode parameters

The parameters defined on this page control the operations of the tagged queuing function and statistical information function.

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Image 203
Fujitsu MAP3735, MAP3367, MAP3147 Control mode parameters page code = 0A, Tst, Gltsd Rlec, Rac, SWP Raerp Uaae Eaerp
Page 202 Page 204

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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