Device Overview

Emergency Unload other than Unload is performed when the power is shut down while the heads are still loaded on the disk.

The product supports the Emergency Unload a minimum of 20,000 times. When the power is shut down, the controlled Unload cannot be executed. Therefore, the number of Emergency other than Unload is specified.

Remark:

We recommend cutting the power supply of the HDD for this device after the Head Unload operation completes. The recommended power supply cutting sequence for this device is as follows:

1)Disk Flush

Flush Cache command execution.

2)Head Unload

Standby Immediate command execution.

3)Wait Status

Checking whether bit 7 of the status register was set to '0'. (wait to complete STANDBY IMMEDIATE command)

4)HDD power supply cutting

1.11Advanced Power Management

The disk drive automatically shifts to the power saving mode according to the setting of the APM mode under the idle condition.

The APM mode can be chosen with a Sector Count register of the SET

FEATURES (EF) command.

The disk drive complies with the three kinds of APM modes that a command from the host is required.

FR = 05h : Enable APM

SC = C0h - FEh : Mode-0 Active Idle Low Power Idle

SC = 80h - BFh : Mode-1 Active Idle Low Power Idle (Default)

SC = 01h - 7Fh : Mode-2 Active Idle Low Power Idle Standby

FR = 85h : Disable APM (Set Mode-0)

Active Idle:

The head is in a position of extreme inner in disk

 

medium. (VCM Lock)

Low Power Idle:

The head is unloaded from disk.

 

The spindle motor rotates.

1-12

C141-E217

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Fujitsu MHV2100AH, MHV2060AH, MHV2080AH, MHV2040AH manual Advanced Power Management

MHV2040AH, MHV2080AH, MHV2060AH, MHV2100AH specifications

The Fujitsu MHV series of hard disk drives, specifically the MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH, are renowned for their reliability and performance in the mobile HDD segment. Designed primarily for use in laptops and other portable devices, these drives integrate cutting-edge technologies to meet the demands of today's data-intensive applications.

One of the hallmark features of the MHV series is its high data density, allowing for substantial storage capabilities in compact sizes. The MHV2060AH offers a storage capacity of 60 GB, while the MHV2080AH and MHV2100AH offer 80 GB and 100 GB respectively. The MHV2040AH provides a slightly more modest but still robust 40 GB of storage. This range of capacities ensures that users can select the model that best fits their storage needs.

The drives utilize the latest perpendicular magnetic recording (PMR) technology, which enhances recording efficiency and increases data storage densities. This technology significantly optimizes the use of disk surface area, providing better performance and more reliable data access. Additionally, the MHV series incorporates an advanced actuator system that ensures precision head positioning, enhancing data integrity and reducing error rates during read and write operations.

In terms of performance, the MHV series maintains a revolutions per minute (RPM) rating of 5400, which strikes a balance between speed and energy efficiency, making these drives suitable for low-power applications. The drives are also designed with a low acoustic level, generating minimal noise during operation—a crucial factor for mobile users who prefer quieter devices.

Furthermore, the Fujitsu MHV series features a robust shock resistance design, allowing them to withstand the rigors of mobile computing. This makes them suitable for use in portable environments subject to vibration and physical movement, thus ensuring data security and drive longevity.

Overall, the Fujitsu MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH represent a formidable selection of mobile hard disk drives filled with advanced technologies and features, making them well-suited for a wide range of applications in today's fast-paced digital world. With their combination of storage capacity, performance, and durability, these drives continue to serve as reliable solutions for users seeking efficient data storage in portable formats.