Samsung HM100JI, HD401LJ, HD400LJ, MP0402H, HD403LJ, HD501LJ, HD402LJ, HD500LJ, HM160JC What is PMR?

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Samsung Hard Disk Drive 2007 Product Guide

What is PMR?

PMR Technology

Growth of the HDD industry has in the past been explosive, as recording density effectively doubled each year. But since 2003 this growth rate has radically slowed down, leveling off at about 30-40% a year. This slowdown has been attributed to difficulties in further increasing the density to meet continuing demands for ever-higher recording density. As a result, the HDD industry has continued to devise new technologies capable of allowing for higher recording densities. One such technology is the recording method known as PMR (Perpendicular Magnetic Recording).

Technology Overview

PMR (Perpendicular Magnetic Recording) and LMR (Longitudinal Magnetic Recording) are recording methods. As indicated by their names, PMR arranges magnetized cells vertically while LMR does so in a horizontal fashion. This vertical arrangement allows PMR to record a greater number of data bits in the same area. The primary reason why density is limited through LMR is a result of what is called superparamagnetism. Superparamagnetism refers to the phenomenon by which magnetized materials move closer as the density increases, to the point where they eventually interfere with one another. As magnetized cells become unstable and as their magnetism changes direction, any stored data can be rendered unusable. By avoiding superparamagnetism, PMR enables one to further increase recording density. It is believed that PMR will reach a maximum recording density of 1 TB/in2 (LMR: 200 GB/in2).

Signal Amplitude

Longitudinal Recording

Perpendicular Recording

“Ring”

 

 

Monopole

Inductive Write Element

 

Inductive Write Element

Shield 2

P2

Read Element

Shield 2

P2

P1

V Write

GMR Sensor

P1

 

 

 

 

V Write

 

 

 

 

 

 

Shield 1

 

 

 

 

Recording

 

Recording

 

 

 

Medium

 

 

Medium

 

 

 

 

Soft

 

 

 

 

 

 

Amplitude

 

Underlayer

Magnetizations

Return Pole

 

 

 

Distance

 

Signal

Distance

 

Transition

Transition

region

region

 

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Contents Samsung MH80S P120SP120 P80SDCapture the World Market with the best Quality Behold the High Capacity Hard Disk Drive Perfect AV Environment with Noiseless Hard Disk Drive Maximize the Confidence in Data Storage Hybrid HDD DramWhat is PMR? HD252KJ HD321KJ HD403LJ Spinpoint T166 seriesHD320KJ HD402LJ SATA,8MB HD300LJ HD400LJ Spinpoint T133S series300.0/400.0GB ATA Streaming Feature Set4 Spinpoint T133 seriesPATA,8MB HD300LD HD400LD Ultra ATA-100 CompliantATA Streaming Feature Set Spinpoint P120S series200.0/250.0GB Staggered Spin-up SupportSpinpoint P120 series Ultra ATA-133 Interface Support200GB 250GB Model 8MBHD040GJ HD080HJ HD120IJ HD160JJ Spinpoint P80SD series40.0/80.0/120.0/160.0GB Spinpoint P80 series 80.0/120.0/160.0GBSpinpoint M80S series HM080HI HM120II HM160JISpinpoint M80 series HM080HC HM120ICHM160JC Ultra ATA-100 InterfaceHM040HI HM060HI HM080II HM100JI HM120JI Spinpoint M60S series40.0/60.0/80.0/100.0/120.0GB HM120JC Spinpoint M60 seriesHM040HC HM060HC HM080IC HM100JC HM040HI HM060II HM080JI Spinpoint M40S series40.0/60.0/80.0GB Spinpoint M40 series MP0402H MP0603H MP0804HHard Disk Drive? Samsung Award Winning

HM120JI, HD501LJ, HD403LJ, HM060HC, HD402LJ specifications

The Samsung MP0402H, HD500LJ, HM040HI, SP2004C, and HD401LJ are notable hard disk drives (HDDs) that emphasize Samsung's commitment to storage technology and performance. Each of these models has unique features catering to various user needs ranging from personal computing to enterprise solutions.

The Samsung MP0402H is a 40 GB hard drive that operates at a spindle speed of 5400 RPM, making it suitable for entry-level laptops and desktops. It employs a SATA interface, which facilitates faster data transfer rates compared to older IDE connections. With its compact 2.5-inch form factor, it offers a balance of size and performance, making it a reliable choice for consumer electronics.

On the other hand, the HD500LJ is designed with higher storage capacity in mind. This 500 GB drive uses a 7200 RPM spindle speed, significantly improving data retrieval times. It is also equipped with a Serial ATA interface, providing enhanced bandwidth and efficiency. This model is ideal for those requiring ample storage for multimedia files or applications, while maintaining robust performance.

The HM040HI reflects Samsung's ongoing innovation with a 40 GB capacity and features similar characteristics to the MP0402H. This HDD is also a 5400 RPM drive, ensuring energy efficiency, which is essential for portable devices. Its low power consumption enhances battery life in laptops, making it a preferred option for mobile users.

The SP2004C further expands on this range with a capacity of 200 GB. Its 7200 RPM speed allows for quick data access, which is especially beneficial for gaming and high-performance applications. This model also maintains a 3.5-inch form factor, suitable for desktop systems, and uses an SATA interface for optimal connectivity and speed.

Lastly, the HD401LJ offers an impressive 400 GB of storage with the same high-performance 7200 RPM speed characteristic of the HD500LJ and SP2004C. Its design caters to users requiring a blend of space and performance, making it appropriate for both creative professionals and average consumers alike.

In summary, these five Samsung HDD models showcase advances in storage technology, offering a range of capacities and speeds. Their combination of SATA interfaces, varying spindle speeds, and form factors ensures there is an option for everyone, from casual users to professional environments. Samsung continues to be a contender in the storage market, marries performance with reliability across its product lineup.
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