3.1 Control/Sense Commands

Depending on the value specified in the "Immed (immediate)" bit, bit 0 of CDB byte 1, the timing of completion (status byte report) of this command differs as shown below.

a.In the case of the start specification ("Start" bit = "1")

When the "Immed" bit is "1," simply by instructing starting of the spindle motor, a GOOD status is reported without waiting until the disk drive is in the Ready state, and command execution is completed.

When the "Immed" bit is "0," the status byte is reported, and command execution is completed, at the point when the disk drive has entered the Ready state after the spindle motor has started.

b.In the case of the stop specification ("Start" bit = "0")

When the "Immed" bit is "1," simply by instructing stopping of the spindle motor, the GOOD status is reported and command execution is completed.

When the "Immed" bit is "0," the status byte is reported, and command execution is completed, after the spindle motor is in the stopped state.

Notes:

1.When this command with the Start instruction is issued with a link to another command, the specification in the "Immed" bit should be "0." If "1" is specified for the "Immed" bit, ordinarily, the disk drive is still not in the Ready state at the point when this command is completed, so a linked command cannot be executed normally

2.Even if "1" is specified in the "Immed" bit of this command, if other commands are already queued and another command exists which is already being executed, this command is placed on the queue and disconnect processing is performed. Therefore, even if "1" is specified in the "Immed" bit, the status will not necessarily be reported immediately after the COMMAND phase.

3.1.11RESERVE (16)

 

Bit

7

6

5

4

 

3

 

 

2

 

1

 

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

X‘16’

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

LUN

 

3rd Pty

 

3rd Pty Dev ID

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

0

0

0

0

0

 

 

0

 

0

 

Link

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C141-E167

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Page 99
Image 99
Fujitsu MAS3367, MAP3367, MAP3147, MAS3735, MAP3735 specifications Reserve

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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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.