areal density
play

Areal Density Mountain Dave Anderson Seagate Recording Technology - PowerPoint PPT Presentation

Mar 11, 2023 •196 likes •400 views

Scaling the Areal Density Mountain Dave Anderson Seagate Recording Technology Progression - ASTC Challenges to Higher Capacity Drives Rdr2 Rdr1 100 nm Thermal Stability Writer/Reader/HMS Scalability Fixed Form Factor 3 Innovative

  1. Scaling the Areal Density Mountain Dave Anderson Seagate

  2. Recording Technology Progression - ASTC

  3. Challenges to Higher Capacity Drives Rdr2 Rdr1 100 nm Thermal Stability Writer/Reader/HMS Scalability Fixed Form Factor 3

  4. Innovative Technologies HDMR He SMR PMR/CMR TDMR HAMR Heated Dot Heat Assisted Shingled Perpendicular 2D Magnetic Helium Filled Magnetic Magnetic Magnetic Magnetic Recording Hard Drives Recording Recording Recording Recording AD Up to ~1.0 Tb/in 2 ~5.0 to 10.0 AD ~1.2 to 4.0 Product Tb/in 2 AD Currently Tb/in 2 Current Shipping in Integration 2016 Shipping Mainstream Initial Product Product various markets - 2018 Products Integration >2025 Integration 2016+

  5. Innovative Technologies SMR He TDMR HDMR HAMR PMR/CMR Shingled 2D Magnetic Helium Filled Heat Assisted Heated Dot Perpendicular Magnetic Recording Magnetic Magnetic Magnetic Hard Drives Recording Recording Recording Recording AD Up to ~1.0 AD ~1.2 to 4.0 Tb/in 2 ~5.0 to 10.0 Product Currently Tb/in 2 Ramping Tb/in 2 AD Integration 2016 Current Shipping - 2018 Product Mainstream Initial Product Integration 2016+ Products Integration >2025

  6. Two Dimensional Magnetic Recording (TDMR) Problem Reducing the reader width difficult Reader sees more of adjacent tracks = noise TDMR solution Read adjacent tracks Calculate interference effects and cancel out noise Longer term knowledge of adjacent tracks & clever encoding extend the areal density further by writing tracks closer and closer together Challenge: How to implement TDMR Reading multiple tracks with a single reader is too slow Multiple readers on a single head has engineering challenges 6

  7. 2D Magnetic Recording Works TDMR 2D Magnetic Recording Compatible with PMR, SMR and HAMR Product Integration 2016 - 2018 • 2 or more readers on the same track or partially on adjacent tracks Takeaways • Current areal density gains in the 5-10% range • Future work to get larger areal density gains • Also get 2x read data rate

  8. Innovative Technologies SMR He TDMR HDMR HAMR PMR/CMR Shingled 2D Magnetic Helium Filled Heat Assisted Heated Dot Perpendicular Magnetic Recording Magnetic Magnetic Magnetic Hard Drives Recording Recording Recording Recording AD Up to ~1.0 AD ~1.2 to 4.0 Tb/in 2 ~5.0 to 10.0 Product Currently Tb/in 2 Ramping Tb/in 2 AD Integration 2016 Current Shipping - 2018 Product Mainstream Initial Product Integration 2016+ Products Integration >2025

  9. Heat Assisted Magnetic Recording Making Significant Progress • Very stable media to extend areal density • Media is heated so it can be written. HAMR • Laser is integrated into the HAMR NFT HAMR head Heat Assisted HAMR Integrated Recording Head • Near field optics allow very Magnetic Recording narrow and sharp bits to be written. AD ~1.2 to 4.0 Tb/in 2 • Heated, written and cooled in Product Integration Laser 2016+ Diode less than a nano-second. •HAMR need for increase in areal density. Takeaways •Significant progress made, still focusing on reliability and area density.

  10. HAMR ADC Growth and Product readiness- It Works! Integrated NFT heads Accomplishments: • ADC = +1.6 Tb/in 2 • Reliability • Integrated heads/drive ADC Demo 2015 ADC demo: 2012 1402 Gfpsi 1007 Gfpsi =2084kfci x 673 kTPI =1975kfci x 510 kTPI

  11. Innovative Technologies SMR TDMR He HDMR HAMR PMR/CMR Shingled 2D Magnetic Heat Assisted Heated Dot Helium Filled Magnetic Perpendicular Recording Magnetic Magnetic Recording Magnetic Hard Drives Recording Recording Recording AD Up to ~1.0 Tb/in 2 AD ~1.2 to 4.0 ~5.0 to 10.0 Product Shipping in Currently Tb/in 2 Tb/in 2 AD Integration 2016 Current various markets Shipping - 2018 Mainstream Product Initial Product Products Integration 2016+ Integration >2025

  12. Heated Dot Magnetic Recording= BPM + HAMR Continuous FePt film patterned @ 1Tdpsi to 5Tdpsi HDMR Heated Dot Magnetic Recording ~5.0 to 10.0 Tb/in 2 AD Initial Product Integration >2025 BER = -2.43 @ 1Tb/in2 Spinstand testing and drive integration • BPM:Multiple grains per bit to a single magnetic island per bit Takeaways 5 T • Demonstrated 1.5 Tdpsi Spinstand • HDMR at 5Tdpsi and beyond looks feasible

  13. WHY HARD DISK DRIVES REMAIN ESSENTIAL

  14. 2005: Installation Pope Benedict

  15. 2013: Installation Pope Francis 2005: Installation Pope Benedict

  17. Move Toward Mobility: Shifting the Location of Data 2010 2020 dramatic shift to the cloud 2020 HDD 62% of the storage Shipments: was shipped into the client market… 1.6 - 2 ZB 77 Exabytes 1,121 Exabytes Source: Seagate Strategic Marketing and Research 17

  18. No Replacement for HDD Soon 2020 HDD HDDs dominate the storage market Shipments: 1.6 - 2 ZB 900 800 700 600 NAND 2020 Forecasts: < ¼ (HDD EBs) Exabytes 500 500 400 400 300 EBs 300 200 200 100 100 0 2014 2015 2016 2017 2018 2019 2020 0 CY08 CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 IBS Forward Insights Gartner HDD NAND 18

  19. THANK YOU

Recommend

Denmark Areal 34.o94 km2 Inhabitants 5.511.451 Agriculture areal 2.589.000.000 ha. Fruit and

Denmark Areal 34.o94 km2 Inhabitants 5.511.451 Agriculture areal 2.589.000.000 ha. Fruit and

Danmark in 3D Denmark Areal 34.o94 km2 Inhabitants 5.511.451 Agriculture areal 2.589.000.000 ha. Fruit and berry prod. 18.500 ha Wine growing area 46 ha. of 99 ha. Wine growing area 46 ha. of 99 ha. permitted of Eu for Comerciel wine -

433 views • 15 slides
Lecture 18 Models for areal data Colin Rundel 03/22/2017 1 areal / lattice data 2 Example -

Lecture 18 Models for areal data Colin Rundel 03/22/2017 1 areal / lattice data 2 Example -

Lecture 18 Models for areal data Colin Rundel 03/22/2017 1 areal / lattice data 2 Example - NC SIDS 3 SID79 E I 2 E I 2 Some properties of Morans I (when there is no spatial autocorrelation): E I 1 n 1 Var I EDA - Morans

504 views • 38 slides
Numeral classifiers in areal perspective: Khmer and Thai 'syntactic borrowing' revisited RIKKER

Numeral classifiers in areal perspective: Khmer and Thai 'syntactic borrowing' revisited RIKKER

Numeral classifiers in areal perspective: Khmer and Thai 'syntactic borrowing' revisited RIKKER DOCKUM , YALE UNIVERSITY AUSTROASIATIC SYNTAX IN AREAL AND DIACHRONIC PERSPECTIVE 5-7 SEPTEMBER 2016 Huffman 1973 Examines the following, in

678 views • 46 slides
Areal Unit Data Regular Grids or Lattices Large Point-referenced Datasets Is there spatial

Areal Unit Data Regular Grids or Lattices Large Point-referenced Datasets Is there spatial

Areal Unit Data Regular Grids or Lattices Large Point-referenced Datasets Is there spatial pattern? We usually want to smooth the data. But, a tricky question. Inference for new areal units? Descriptive/algorithmic vs. Model-based Basics of

416 views • 30 slides
Fusing point and areal level space-time data with application to wet deposition Alan Gelfand

Fusing point and areal level space-time data with application to wet deposition Alan Gelfand

Fusing point and areal level space-time data with application to wet deposition Alan Gelfand Duke University Joint work with Sujit Sahu and David Holland Alan E. Gelfand Fusing point and areal level space-time data Chemical Deposition

1.4k views • 84 slides
Relative Density Chapters 3.5 Relative Density 1 2/5/2015 Minimum Density Pluviate soil from

Relative Density Chapters 3.5 Relative Density 1 2/5/2015 Minimum Density Pluviate soil from

2/5/2015 Relative Density Chapters 3.5 Relative Density 1 2/5/2015 Minimum Density Pluviate soil from height of 25 mm Maximum Density Vibrate for 8 minutes 2 2/5/2015 Relative Density Correlations Clean sand (0 F c 5%) Sand w/

372 views • 13 slides
Lessons from an isolate: Chitimacha diachrony in areal perspective Daniel W. Hieber University

Lessons from an isolate: Chitimacha diachrony in areal perspective Daniel W. Hieber University

Lessons from an isolate: Chitimacha diachrony in areal perspective Daniel W. Hieber University of California, Santa Barbara SSILA 2018, January 5, Salt Lake City Handout and slides available at danielhieber.com/cv This research was funded in

829 views • 43 slides
Spatial Autoregressive Models Sudipto Banerjee Division of Biostatistics, University of Minnesota

Spatial Autoregressive Models Sudipto Banerjee Division of Biostatistics, University of Minnesota

Spatial Autoregressive Models Sudipto Banerjee Division of Biostatistics, University of Minnesota September 22, 2009 1 Areal Modelling Areal unit data Maps of raw standard mortality ratios (SMR) of lung and esophagus cancer between 1991 and

668 views • 25 slides
4-current density . Lets suppose J is the 4-current density, let J =(c , J )

4-current density . Lets suppose J is the 4-current density, let J =(c , J )

4-current density . Lets suppose J is the 4-current density, let J =(c , J ) So Using the property Smooth function we can rewrite J as P. Piot, PHYS 571 Fall 2007 Charge continuity equation

700 views • 13 slides
Lessons from an isolate: Chitimacha diachrony in areal perspective Daniel W. Hieber University

Lessons from an isolate: Chitimacha diachrony in areal perspective Daniel W. Hieber University

Lessons from an isolate: Chitimacha diachrony in areal perspective Daniel W. Hieber University of California, Santa Barbara handout and slides available at: danielhieber.com/cv This research was funded in part by a NSF Graduate Research

627 views • 45 slides
Analysis of Areal Data: Should a Model with (Spatial) Dependence be Considered? Petrut a C.

Analysis of Areal Data: Should a Model with (Spatial) Dependence be Considered? Petrut a C.

Analysis of Areal Data: Should a Model with (Spatial) Dependence be Considered? Petrut a C. Caragea Iowa State University Department of Statistics T h i n k S p a t i a l University of California at Santa Barbara Fall, 2010 P. Caragea

633 views • 39 slides
Hierarchical Modeling for Large Univariate Areal Data Abhi Datta 1 , Sudipto Banerjee 2 and Andrew

Hierarchical Modeling for Large Univariate Areal Data Abhi Datta 1 , Sudipto Banerjee 2 and Andrew

Hierarchical Modeling for Large Univariate Areal Data Abhi Datta 1 , Sudipto Banerjee 2 and Andrew O. Finley 3 July 31, 2017 1 Department of Biostatistics, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland. 2

572 views • 30 slides
Sara Zook, RDN-CD, CPHWC Calorie Density Calorie density is a measure of the calorie content of

Sara Zook, RDN-CD, CPHWC Calorie Density Calorie density is a measure of the calorie content of

Sara Zook, RDN-CD, CPHWC Calorie Density Calorie density is a measure of the calorie content of food relative to its weight or volume. It is also called energy density, and is usually measured as calories per 100 grams (3.5 ounces) of

382 views • 12 slides
Journal Club presentation Helena Pikhartova March 14, 2018 2/8 Summary of article Low-dose

Journal Club presentation Helena Pikhartova March 14, 2018 2/8 Summary of article Low-dose

Journal Club presentation Helena Pikhartova March 14, 2018 2/8 Summary of article Low-dose active detection technique using interactions of multi-MeV mono-energetic photons and neutrons. measuring materials areal density and effective

228 views • 10 slides
Language Typology and Areal Linguistics Yiru July 13, 2016 Yiru Language Typology July 13,

Language Typology and Areal Linguistics Yiru July 13, 2016 Yiru Language Typology July 13,

Language Typology and Areal Linguistics Yiru July 13, 2016 Yiru Language Typology July 13, 2016 1 / 26 Overview Introduction 1 Typologically-based Clusters 2 Areal Linguistics 3 Yiru Language Typology July 13, 2016 2 / 26 Language

884 views • 26 slides
Introduction to Areal Interpolation and MGGGs maup Ruth Buck Framing the problem 10 10 10

Introduction to Areal Interpolation and MGGGs maup Ruth Buck Framing the problem 10 10 10

Introduction to Areal Interpolation and MGGGs maup Ruth Buck Framing the problem 10 10 10 10 ? ? 10 10 10 10 10 10 10 10 ? ? 10 10 10 10 We have data for the blue source units that we want on the orange target units.

328 views • 18 slides
Bulk Density and Void Content Bulk Density Bulk density ( n .) the mass of a unit volume of bulk

Bulk Density and Void Content Bulk Density Bulk density ( n .) the mass of a unit volume of bulk

Bulk Density and Void Content Bulk Density Bulk density ( n .) the mass of a unit volume of bulk aggregate including the volume of the individual particles and the volume of the voids between them. m kg agg bulk density 3 V m

1.45k views • 30 slides
The Dark Matter density MW Components Global density Data: inner Data: outer Data: masers

The Dark Matter density MW Components Global density Data: inner Data: outer Data: masers

The Dark Matter density F. Nesti Problem The Dark Matter density MW Components Global density Data: inner Data: outer Data: masers Fabrizio Nesti Fits Annihilation Local density Universit` a dellAquila, Italy Method Data: Sun

428 views • 41 slides
THE NEXT GENERATION OF BATTERY FOR HIGH ENERGY DENSITY AND POWER DENSITY Main

THE NEXT GENERATION OF BATTERY FOR HIGH ENERGY DENSITY AND POWER DENSITY Main

THE NEXT GENERATION OF BATTERY FOR HIGH ENERGY DENSITY AND POWER DENSITY Main Principle Investigators Professor Feiyu Kang Department of Material Science, Tsinghua University Beijing 100084, P. R. China

635 views • 7 slides
The Di ff usion of Wal-Mart and Economies of Density by Tom Holmes Economies of Density: Cost

The Di ff usion of Wal-Mart and Economies of Density by Tom Holmes Economies of Density: Cost

The Di ff usion of Wal-Mart and Economies of Density by Tom Holmes Economies of Density: Cost savings achieved by having a dense network of stores. Logistics of deliveries Save on trucking costs Facilitates just-in-time inventory

497 views • 37 slides
Page 1 1 Origins of Breast Density Legislation Origins of Breast Density Legislation In

Page 1 1 Origins of Breast Density Legislation Origins of Breast Density Legislation In

Message Breast Density Notification Legislation, The majority of states have enacted breast density notification legislation. Supplemental Screening and Controversies A basic understanding of the implications of Amie Y. Lee, MD dense breast

329 views • 13 slides
Lecture 19 Fitting CAR and SAR Models Colin Rundel 03/29/2017 1 Fitting areal models 2 CAR

Lecture 19 Fitting CAR and SAR Models Colin Rundel 03/29/2017 1 Fitting areal models 2 CAR

Lecture 19 Fitting CAR and SAR Models Colin Rundel 03/29/2017 1 Fitting areal models 2 CAR vs SAR Conditional Autoregressive (CAR) n Simultaneous Autogressve (SAR) 3 n y ( s i ) = W ij y ( s j ) + j = 1 y N ( 0 ,

453 views • 30 slides
Probability Density (1) Let f ( x 1 , x 2 . . . x n ) be a probability density for the variables {

Probability Density (1) Let f ( x 1 , x 2 . . . x n ) be a probability density for the variables {

Probability Density (1) Let f ( x 1 , x 2 . . . x n ) be a probability density for the variables { x 1 , x 2 . . . x n } . These variables can always be viewed as coordinates over an abstract space (a manifold). The probability of a domain A

619 views • 13 slides
Space-Time Areal Mixture Model: Relabeling Algorithm and Model Selection Issues Md Monir

Space-Time Areal Mixture Model: Relabeling Algorithm and Model Selection Issues Md Monir

Space-Time Areal Mixture Model: Relabeling Algorithm and Model Selection Issues Md Monir Hossain, PhD Md Monir Hossain, PhD Assistant Professor of Pediatrics Division of Biostatistics and Epidemiology Acknowledgement Collaborator: Andrew B

578 views • 25 slides

More recommend