High-density ferroelectric recording using a hard disk drive-type data storage system

2016 ◽  
Vol 119 (18) ◽  
pp. 184101 ◽  
Author(s):  
Tomonori Aoki ◽  
Yoshiomi Hiranaga ◽  
Yasuo Cho
Keyword(s):  
Hard Disk Drive ◽  
Data Storage ◽  
Storage System ◽  
Hard Disk ◽  
Disk Drive ◽  
High Density ◽  
Data Storage System ◽  
Type Data

Scanning probe-type data storage beyond hard disk drive and flash memory

MRS Bulletin ◽  
2018 ◽  
Vol 43 (5) ◽  
pp. 365-370 ◽  
Author(s):  
Yasuo Cho ◽  
Seungbum Hong
Keyword(s):  
Hard Disk Drive ◽  
Data Storage ◽  
Flash Memory ◽  
Hard Disk ◽  
Disk Drive ◽  
Scanning Probe ◽  
Probe Type ◽  
Type Data ◽  
Image Position

Abstract

System Dynamics and Disk Drive Head Position Error Prediction in a Data Storage Box

2014 ◽  
Author(s):  
Lidu Huang ◽  
Chiao-ping Roger Ku ◽  
Jean O’Young ◽  
Toshiki Hirano
Keyword(s):  
Data Storage ◽  
Storage System ◽  
Disk Drive ◽  
Head Position ◽  
Position Error ◽  
System Level ◽  
Disk Drives ◽  
Data Storage System ◽  
Mechanical Disturbances ◽  
System Transfer Function

Disk drives are packed at ever dense arrangement in a modern data storage system, internal and external mechanical disturbances can have a great effect to disk drive’s read and write performances. The VCM torque generated during seeking affects its own as well as neighboring drives head position. In this study, we modeled a storage box with multiple HDDs installed to obtain mechanical system transfer function. The mechanical excitation is characterized by VCM torque, and HDD operational vibration behaviors on linear and rotational shakers are measured. A system level hybrid method predicting HDD head position error in a data storage box is described, and both analytical and measured results will be presented.

Sound-Induced Vibration to Hard Disk Drive in a Data Storage Enclosure

2019 ◽  
Author(s):  
Shaomin Xiong ◽  
Toshiki Hirano
Keyword(s):  
Hard Disk Drive ◽  
Data Storage ◽  
Sound Source ◽  
Hard Disk ◽  
Disk Drive ◽  
Vibration Model ◽  
Data Center Cooling ◽  
Cooling Fans ◽  
Mechanical Components ◽  
Mechanical Disturbances

Abstract The data read and write operation in a hard disk drive (HDD) relies on precision mechanical components, such as air bearing sliders, suspension, and piezo actuators. Many of those mechanical components are sensitive to mechanical disturbances. It is found that sound a disturbance (or airborne disturbance) increases the position error signal (PES), such that the tracking, following and seeking performance is compromised. For a data storage enclosure and server in a data center, cooling fans generate strong sound noise, resulting in degradation of the performance of HDDs. In this study, we showed that the PES degrades when placing a sound source next to the HDD, indicating that the sound-induced vibration links to the mechanical components inside the HDD. It is also found that the PES is very sensitive to the location of the sound source. A vibration model was built by finite element method (FEM). The simulation results were compared to experiments on a thin plate structure to explain this dependency on the location of sound source.

Crosstalk Suppression in High Data Rate and High Density Hard Disk Drive Interconnects Using Magnetic Composites

Frequenz ◽  
2013 ◽  
Vol 67 (7-8) ◽  
Author(s):  
Krisada Prachumrasee ◽  
Arkom Kaewrawang ◽  
Anan Kruesubthaworn ◽  
Roong Sivaratana ◽  
Apirat Siritaratiwat
Keyword(s):  
Hard Disk Drive ◽  
Hard Disk ◽  
Disk Drive ◽  
Data Rate ◽  
High Density ◽  
High Data Rate ◽  
Magnetic Composites ◽  
High Data

Forecasting the future of data storage: case of hard disk drive and flash memory

foresight ◽  
2008 ◽  
Vol 10 (5) ◽  
pp. 34-49 ◽  
Author(s):  
Tugrul U. Daim ◽  
Pattravadee Ploykitikoon ◽  
Elizabeth Kennedy ◽  
Woraruthai Choothian
Keyword(s):  
Hard Disk Drive ◽  
Data Storage ◽  
Flash Memory ◽  
Hard Disk ◽  
Disk Drive ◽  
The Future

First Prototype of High-Density Ferroelectric Data Storage System

2003 ◽  
Vol 784 ◽  
Author(s):  
Yoshiomi Hiranaga ◽  
Yasuo Cho ◽  
Yasuo Wagatsuma
Keyword(s):  
Data Storage ◽  
Transfer Rate ◽  
Data Transfer ◽  
Storage System ◽  
High Density ◽  
Practical Application ◽  
Data Array ◽  
Data Transfer Rate ◽  
System A ◽  
Data Storage System

ABSTRACTThe first prototype of high-density ferroelectric data storage system based on scanning nonlinear dielectric microscopy was developed in order to establish basic elemental technologies for actual read/write functions aiming for practical application. Using this system, a data transfer rate was evaluated. 9 kbps reading and 50 kbps writing were demonstrated with respect to 440 kbit/inch bit data array written on a lithium tantalate single crystal thin plate. Additionally, we considered future prospects for developing the data storage system with further fast data transfer rate.

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