HGST J4K100 100GB 2.5" SATA 0A60174 用户手册

HiVERT™ technology

The first introduction of Hitachi Voltage 

Efficiency Regulator (HiVERT) technology was 

on a 2.5 inch product now Hitachi uses this 

technology to achieve best-in-class power 

efficiency on 3.5 inch products. In fact the 

DeskstarP7K500 achieves power savings 

of up to 40% over previous-generation 

products. This reduction was accomplished 

by using the same system-on-chip (SoC) that 

is used in Hitachi’s Travelstar 2.5-inch mobile 

product line, where low power has long been 

a key design attribute to maximize battery 

life in notebook PCs.

This SoC incorporates HiVERT technology 

in which switching regulators are used 

in place of less power-efficient linear 

regulators in the voltage reduction 

processes.

IrMnCr read sensor

To address the demand for increased 

capacity and highly reliable operation of the 

read sensor, Hitachi scientists developed a 

material and process for the manufacture of 

ultra-small read sensors. Use of a new read-

head alloy – iridium-manganese-chromium 

(IrMnCr), incorporating an extremely thin 

layer of ruthenium in the structure to create 

a very high “pinning field”, resulted in the 

storage industry’s most stable and reliable 

read-sensor technology.

CoolSpin Technology

The CinemaStar 5K500, Hitachi’s first 

CoolSpin drive, uses an enhanced motor 

design to limit peak current during spin-up 

and enable lower continuous running power. 

With CoolSpin, Hitachi was able to achieve 

just the right blend of performance, power 

management and acoustics for digital video 

applications. CoolSpin drives allow system 

builders to develop set-top boxes and DVRs 

that run cooler and require less power, 

ultimately leading to improved product 

reliability and lifespan. 

Enhanced Adaptive Battery Life Extender

(ABLE)

Hitachi understands the challenges its 

customers face in maximizing battery life 

in their products, and engineered the ABLE 

power management technology in response. 

ABLE enables the host system to realize the 

optimum power utilization from the drive, 

and customize power consumption at drive 

level to suit the specific application.

Hitachi load/unload technology

Load/unload technology helps keep the 

read/write heads from coming into contact 

with the media - even when the drive is not 

rotating.

Some of the many benefits include increased 

robustness, reliability and reduced power 

consumption. Hitachi is the only company 

to use load/unload technology across its 

complete product line.

Bulk Data Encryption

Several Hitachi hard drives now offer 

optional Bulk Data Encryption – a hard-

drive-level data security mechanism that 

puts users’ data effectively ‘under lock 

and key’, offering virtually impenetrable 

protection. As an alternative to protecting 

data through software-based encryption 

or system-level passwords, hard-drive level 

encryption provides better performance and 

a much higher level of security.

Rotational Vibration Safeguard (RVS)

Enterprise class Hitachi hard drives have 

advanced Rotational Vibration Safeguard 

(RVS) that actually anticipates disturbances 

and counteracts them— maximizing 

performance in the most arduous conditions. 

Vibration sensors at the edges of the disk 

feed forward to the actuator, warning it of 

oncoming disruption. In benchmark tests, 

this technology improves performance in 

business and high-end systems by as much 

as 300%.

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