Command Specifications

(4)Parameter value

This field indicates actual "threshold value" or "cumulative value". The size of this field differs in each log parameter.

3.1.17LOG SENSE (4D)

Bit

7

 

6

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

X'4D'

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

LUN

 

 

0

0

 

0

PPC

SP

 

 

 

 

 

 

 

 

 

 

 

2

 

PC

 

 

 

 

Page Code

 

 

 

 

 

 

 

 

 

 

 

 

 

3

0

0

0

0

0

 

0

0

0

 

 

 

 

 

 

 

 

 

 

4

0

0

0

0

0

 

0

0

0

 

 

 

 

 

 

 

 

 

5

 

 

 

 

Parameter Pointer (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

Parameter Pointer (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

Parameter List Length (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

Parameter List Length (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

9

0

 

0

0

0

0

 

0

0

Link

 

 

 

 

 

 

 

 

 

 

 

 

 

This command provides a means for the application client to retrieve statistical or other operational information maintained by the device about the device or its logical units.

It is a complementary command to the LOG SELECT command.

The "Parameter Pointer Control (PPC)" bit is not supported. It should be zero.

An "Save Parameters (SP)" bit of zero indicates the device server performs the specified this command and does not save any log parameters. If saving log parameters is implemented, an "SP" bit of one indicates that the device server performs the specified this command and saves all log parameters identified as savable by the "DS" bit to the disc medium.

The "Page Control (PC)" field defined the type of parameter values to be selected (see 3.1.16 for the definition of the page control field).

The "PC" bits are ignored by the drive. The drive assumes that current cumulative parameters are selected.

The "Page Code" field identifies which page of data is being requested. If the page code is reserved or not implemented, the device server terminates the command with CHECK CONDITION status (ILLEGAL REQUEST [=5] / Invalid field in CDB [=24-00]).

The "Page Code" assignments for the log pages are listed below.

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Image 110
Fujitsu MAP3367, MAP3147, MAS3735, MAP3735, MAS3367 specifications LOG Sense 4D, Lun Ppc
Page 109 Page 111

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.

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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.

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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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