Progress and Outlook of HDD Technology - Xiaodong Che

4,288 views

Published on

Xiaodong Che, VP of HGST, gave the talk at CAISS Annual Conference 2012, as part of the panel discussion: Storage Component Technologies - Enable Big Data and Make Better Cloud Computing.

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
4,288
On SlideShare
0
From Embeds
0
Number of Embeds
178
Actions
Shares
0
Downloads
73
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Progress and Outlook of HDD Technology - Xiaodong Che

  1. 1. Progress and Outlook of HDDTechnology Xiaodong (Carl) Che and Roger Wood© 2012 HGST, a Western Digital company
  2. 2. HDD Structure & Components In-hub Disk with spindle motor Perpendicular & fluid bearing Recording Medium Actuator Arm-stack Voice-Coil Motor Suspensions Load/Unload Ramps Connector Preamplifier Write-driver Aluminum base-casting (electronics card not shown) (cover not shown)© 2012 HGST, a Western Digital company 2
  3. 3. HDD History 1960 1980-89 1990-99 2000-09 2010-19 2020 Servers & Desktop PCs External HD Digital Audio HDTVs Beyond… Mainframes Notebook PCs DVRs Gaming Cloud storage Digital Photos / Cams Social media Mobile Phones Surveillance The Nobel Price in Physics, 2007© 2012 HGST, a Western Digital company 3
  4. 4. Transformation of HDD 1975 20 GigaBytes $ 2-4 Million One TeraByte $50© 2012 HGST, a Western Digital company 4
  5. 5. Areal Density Historical Trend 10000 Hitachi/HGST IBM 20~35% CGR Quantum/Seagate 1000 Areal Density (Gb/in2) Toshiba 45% CGR SMR Fujitsu MAMR GMR heads LDPC TAR 100 Samsung MEPRML channel channel BPR TDMR PMR TFC 4k sector 90% CGR 30% CGR CPP-GMR 10 MR head TMR Head AFC Media Head thin film media PRML channel 1 60% CGR 0.1 1990 1995 2000 2005 2010 2015 Year product available (Mobile 5400 RPM)© 2012 HGST, a Western Digital company
  6. 6. Future Technology Roadmap Energy Assisted Recording probably on BPM 100 Shingled Write & Two Dimensional Magnetic Recording (TDMR) Tb/in2 Bit Patterned Magnetic Recording (BPMR) Heat Assisted Magnetic Recording (HAMR) 10 Tb/in2 Areal Density Microwave Assisted Magnetic Recording (MAMR) Shingled Write Recording (SWR) 5 Tb/in2 Shingled Write Recording (SWR) 1 Tb/in2 Perpendicular Magnetic Recording (PMR) Superpara-magnetic limit Longitudinal Magnetic Recording (LMR) 150 Gb/in2 Time Y. Shiroishi, Intermag 2009, FA-01© 2012 HGST, a Western Digital company 6
  7. 7. HDD Three Level Technology Enablers Magnetic Elec. Platforms Comp. systems • Scaling • adv. LDPC • Multi. Disks • HAMR • SMR • Thin Z-height • MAMR • TDMR • Helium filled • BPM/HAMR • 4K/Beyond • DSA • etc… • etc… • Hybrid • Cold Storage • etc… 7© 2012 HGST, a Western Digital company
  8. 8. Key Technology Challenges for HDD  Grow capacity  $/GB, GB/Watt, GB/sq ft. etc. • Areal density – disruptive technologies are coming soon • Platter count  Reduce unit cost & increase reliability  Increase performance & functionality (e.g., security, power, acoustics)  New form factors and applications – Smart devices – ‘thin and light’, instant-on – Cloud – bigger, slower, $/GB© 2012 HGST, a Western Digital company
  9. 9. Thanks!© 2012 HGST, a Western Digital company 9

×