3.4 Maintenance, Diagnostic Commands

Notes:

Exercise caution in the following points when using this command.

1.In order to avoid damage to the results of SEND DIAGNOSTIC command execution (response data) from a command issued by another INIT during the interval until this command is issued, either this command should be linked to the SEND DIAGNOSTIC command when it is issued or the SEND DIAGNOSTIC command and this command should be executed after the IDD is reserved.

2.Response data are valid only when “0” is specified in the “SelfTest (self test)” bit and after a SEND DIAGNOSTIC command which specifies a specific operation in the parameter list is executed, with the IDD transferring response data showing the execution results of the latest SEND DIAGNOSTIC command. Also, even if this command is executed, the response data in not cleared, and remains valid until the next SEND DIAGNOSTIC command is executed.

3.If this command is issued when valid response data do not exist, the IDD transfers a maximum of 4 bytes of X ‘00’ data to the INIT.

Figure 3.21 shows the format of response data transferred to the INIT from the IDD by this command. The response data are configured from a 4-byte “Page header” and the “Page parameters” which follow it.

Header

Page Parameters

 

 

Bit

 

7

 

6

5

4

3

2

1

0

 

 

 

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

Page Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

0

 

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

Page Parameter Length (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

Page Parameter Length (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

~

 

~

Parameter

 

 

 

 

 

 

 

~

 

~

 

~

 

 

 

 

 

 

 

 

 

~

 

 

 

 

 

 

 

 

 

 

n

Figure 3.21 RECEIVE DIAGNOSTIC RESULTS command: Response data configuration

•Page code

This field is the same value as the page code specified in the parameter list transferred form the INIT by the SEND DIAGNOSTIC command executed last, and shows a code which identifies the type of response data reported in this command.

C141-E167

3 - 99

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Image 161
Fujitsu MAP3147, MAP3367, MAS3735, MAP3735, MAS3367 specifications Maintenance, Diagnostic Commands
Page 160 Page 162

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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