Power Save, Power save mode, Active mode

6.2 Power Save

The host can change the power consumption state of the device by issuing a power command to the device.

6.2.1 Power save mode

There are five types of power consumption state of the device including active mode where all circuits are active.

•

Active mode

Active idle mode

Low power idle mode

Standby mode

Sleep mode

The device enters the active idle mode by itself. The device also enters the idle mode in the same way after power-on sequence is completed. The subsequent mode transition changes depending on the APM setting.

(1) Active mode

In this mode, all the electric circuit in the device are active or the device is under seek, read or write operation.

A device enters the active mode under the following conditions:

•The media access system is received.

(2)Active idle mode

In this mode, circuits on the device are set to power save mode.

The device enters the Active idle mode under the following conditions:

•After completion of the command execution other than SLEEP and STANDBY commands.

(3)Low power idle mode

Sets circuits on the device to the power save mode. The heads are disabled in the safe state.

The device enters the low power mode under the following conditions:

•

After certain amount of time has elapsed in the active idle state (APM Mode 0, Mode 1 and Mode 2)

Upon completion of the power-on sequence

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MHV2060AS, MHV2080AS, MHV2040AS specifications

Fujitsu's MHV series of hard disk drives, specifically the MHV2040AS, MHV2080AS, and MHV2060AS models, are designed to deliver efficient performance and reliability for a range of applications, particularly in desktop computing and entry-level servers. Each of these drives adheres to the Serial ATA (SATA) interface, which ensures compatibility across a wide range of systems and is known for its cost-effectiveness and simplicity.

The MHV2040AS features a storage capacity of 40GB, making it suitable for basic computing tasks including document editing, web browsing, and media playback. The MHV2060AS steps it up with a 60GB capacity, allowing for increased data storage needs while still maintaining a high level of performance. The largest of the trio, the MHV2080AS, offers an impressive 80GB of space, positioning it well for users who require additional room for applications, games, and multimedia files.

All drives in this series are equipped with a rotational speed of 5400 RPM, which strikes a balance between speed and power consumption. This speed is adequate for everyday tasks and allows for quick boot times and file access, making them ideal for home and small office environments. Additionally, the drives feature an average latency of 5.5 milliseconds, contributing to their overall performance in retrieving data.

In terms of technology, the MHV series employs a fluid dynamic bearing (FDB) motor, which not only enhances reliability but also reduces noise levels during operation. The FDB technology helps improve the longevity of the drives by minimizing wear on mechanical components. This characteristic is particularly important for users seeking quieter drives, especially in work environments that require minimal disruption.

The drives also incorporate advanced power management features that significantly reduce power consumption, making them an environmentally friendly choice for users mindful of their carbon footprint. These drives are equipped with energy-saving modes that optimize their performance when not in full use, ensuring lower operational costs and longer lifespan.

Overall, the Fujitsu MHV2040AS, MHV2080AS, and MHV2060AS hard drives provide a solid solution for users looking for dependable storage with a range of capacities to fit their needs. Their performance, combined with noise reduction technologies and energy efficiency, makes them a notable choice for various computing environments, from single-user desktops to small business applications.

Fujitsu MHV2060AS Power Save, Power save mode, Active mode, Active idle mode, Low power idle mode

Models: MHV2060AS MHV2080AS MHV2040AS