5.3.2Each mode setting

(1)Setting terminator power supply

Refer to Table 5.2 for controlling the supply of power from the drive to the SCSI terminator power source (TERMPOW).

For information on NP model, refer to Figures 5.2 and 5.3.

Table 5.2 Setting SCSI terminator power supply (NP model)

Supply on/off of SCSI terminator power from

CN2 23-24

IDD

 

 

 

Supply off

Open

 

 

Supply on

Short (*1)

 

 

*1. Set at factory shipment.

 

For NC model, the function of the terminator power supply setting is not supported.

(2)Motor start mode

Set how to control the starting of the IDD spindle motor according to Table 5.3. This setting only determines the operation mode when the power supply is turned on or the microcode is downloaded. In both modes, stopping or restarting the spindle motor can be controlled by specifying the START/STOP UNIT command.

Table 5.3

Motor start mode setting

 

 

 

 

 

 

 

Start timing of the spindle motor

 

NC model (*3)

NP model

 

 

 

 

 

 

CN1 38

 

CN1 78

CN2 11-12

 

 

 

 

 

 

 

 

Starting of the motor is controlled with the

Short

 

Open or Short

Open

START/STOP UNIT command.

 

 

 

 

 

 

 

 

 

 

 

 

The motor is started immediately after the

 

 

 

 

power supply is turned on or after the

 

Open

 

Open

Short (*1)

microcode is downloaded.

 

 

 

 

 

 

 

 

 

 

The motor is started after the elapse of a delay

 

 

 

 

time that is based on the SCSI ID. The delay

 

 

 

 

time is provided immediately after the power

Open

 

Short

(*2)

supply is turned on or after the microprogram is

 

 

 

 

downloaded.

 

 

 

 

 

 

 

 

 

 

 

*1. Set at factory shipment.

*2. For NP model, delay starting of spindle motor is supported by the CHANGE DEFINITION command only.

*3. To set the setting terminals on NC models to short, apply voltage ranging between-0.3 V and

0.8V to the setting terminals externally. To set the setting terminals on NC models to open, apply voltage ranging between 2.0 V and 5.5 V to the setting terminals from an external source.

Refer to Chapter 3 of the SCSI Logical Interface Specifications for details of the START/STOP UNIT command.

5-8

C141-E166

Page 79 Page 81
Page 80
Image 80
Fujitsu MAP3735NC/NP, MAP3735NP Each mode setting, Setting Scsi terminator power supply NP model, Motor start mode setting
Page 79 Page 81

MAP3735NP, MAP3367NC, MAP3735NC/NP, MAP3367NC/NP, MAP3147NC/NP specifications

Fujitsu's MAP3147NC/NP, MAP3367NC/NP, and MAP3735NC/NP hard disk drives represent a robust solution for businesses seeking reliable data storage options. These models are part of Fujitsu’s extensive line of high-performance hard drives that cater to various organizational needs, from servers to high-capacity data storage systems.

One of the standout features of these hard drives is their speed. The MAP3147NC/NP operates at a spindle speed of 10,000 RPM, ensuring rapid data access and retrieval. This speed is essential for environments requiring quick data transactions, making it suitable for enterprise-level databases and high-performance computing applications.

The capacity range across these models is designed to meet varying storage requirements. The MAP3147NC offers 147 GB, while the MAP3367NC provides 67 GB, and the MAP3735NC boasts a generous capacity of 35 GB. This diversity allows organizations to select the drive that best fits their data storage and performance needs while maintaining a scalable storage solution.

In terms of technology, the drives incorporate advanced features such as Serial Attached SCSI (SAS) interface, which enhances data throughput and reliability compared to traditional Parallel SCSI interfaces. SAS technology enables these drives to support multiple device connections while ensuring high-performance throughput, essential for modern enterprise environments.

The drives employ a 64 MB cache, providing a significant performance boost by allowing for quicker access to frequently used data. This capability improves overall system responsiveness, especially in applications requiring high input/output operations per second (IOPS).

Moreover, the MAP3147NC/NP, MAP3367NC/NP, and MAP3735NC/NP series are designed with data integrity in mind. They include features such as Error Correction Code (ECC) and background error scanning, which work together to maintain the integrity of stored data and minimize the risk of data loss.

In conclusion, Fujitsu’s MAP3147NC/NP, MAP3367NC/NP, and MAP3735NC/NP hard disk drives provide a blend of performance, capacity, and reliability. With their fast spindle speeds, robust data throughput via SAS technology, and enhanced cache memory, these drives are ideal for enterprises requiring durable and efficient data storage solutions in high-demand environments. As organization needs evolve, these drives offer scalability and reliability to support diverse applications and workloads.
Top Page Image Contents