Why Storage Solutions Are Accelerating the Mobile Revolution

Transcription

1 Why Storage Solutions Are Accelerating the Mobile Revolution HeeChang Cho Samsung Electronics Mobile Forum 2013 Copyright 2013 Samsung

2 Want to own more and more mobile devices? Notebook PC tablet Smartphone Other Tablet

3 Increasing needs of connected devices 2010: # Connected Devices Surpassed # of People in the world. 2020: 50+ Billion things will be connected & will talk to each other.

4 Mobile Device Market Continue to Grow Global Internet Device Sales Smart-phones & tablets continue to explode Global Smartphone Penetration WW Smartphone vs Mobile Phone Users As of 2012E WW Population 7B 1B SP 5B Mobile Phone Sources: BI Intelligence, Gartner, IDC, Mortan Stanley Research < SP is still only 15% WW penetration yet! Mobile Phone Users Smartphone Users

5 Mobile Devices : Then ( around ~ 07 ) Simple Usage, Simple Features Memory requirements was Simple. Just Storing well is enough!! Camera < 2MP Comm Phone Input Keypad Touch-screen from 07 Content Start of Apps in 07

6 Mobile Era Continues Evolving to IoE People needs more complicated things. Internet of Things Devices Internet Internet of People Social Networking Internet of Everything P2P P2M M2M

7 Mobile Devices: Now ( 13~ ) Smarter, Faster & increasingly demanding devices Faster memory solution is being Required!! Productivity/Creation Voice/Face Recog Input Comm HD Video Editing/Rendering True Multitasking Computing Productivity Connectivity AOAC The New Personal Computer 3D Graphics PC/Console-like Gaming 13MP, Burst Mode Photo Editing 4K Content Camera Content Apps Security BYOE Cross Platforms IoE Apps for Everything Mobile Shopping

8 So, Mobile Revolution needs Storage like High Performance Responsiveness Low Power Longer Battery Life Instant ON Instant Play Multi-tasking Productivity PC-like Gaming Fast App Loading Security Reliability New Security Challenges Robust Memory Enterprise/BYOD Mobile Shopping High Capacity More Memory More Apps, Richer Apps HD Video, High Res Photos 3D Graphics/4K Content Small Package Thinner is Better Quad/Octa-Core CPU Multi-tasking Larger screens AOAC High Capacity in Small Form Factor Small & Slim Pkg: Z-height is Key

9 UFS, a new Mobile-centric Storage!! emmc4.41 emmc4.5,5.0 UFS1.1,2.0 Booting Partitioning Security Data integrity Interface Improvement Performance Enhancement Expandability/Scalability Serial interface High Random IOPS Higher Efficiency Concurrent Operations UFS(Universal Flash Storage) is new Mobile Storage Standard, and successor of emmc.

10 What can you say UFS in a word? Virtues of e-mmc Virtues of SSD UFS

11 UFS, Small SSD for Smartphone!! UFS = virtues of emmc + virtues of SSD + Low Power consumption + Mobile Centric SSD/SAS High Speed Serial I/F Asynchronous operation Proven Architecture (SCSI) UFS Low Power Optimized for mobile Flash Oriented features SSD for Smartphone - Better User Experience - Fast Boot - Fast Response - High-speed PC Sync - Low Power Consumption emmc

12 UFS, The Fastest Interface UFS 2.0( will be published in Aug. 13) exceeds current SSD interface in speed already. No change in SW is required for supporting multi-lane. It will be handled by UniPro IP transparently. If 2 lanes used. 2lane 2400 MB/s 2lane 1200 MB/s 1200 MB/s 200 MB/s emmc MB/s UFS MB/s 300 MB/s emmc MB/s SATA MB/s UFS 2.0 UFS 3.0

13 UFS, Less power consumption UFS consumes less total power(=power X time) by processing tasks sooner and staying in standby mode longer. Power Power emmc Total Power UFS Total Power Active Standby Time Active Standby Time

14 UFS, Selectable & Scalable Speed UFS supports multiple interface speeds Host can adjust interface speed based on its needs. HS G3 HS G1 HS G2 PWM G4 PWM G1 PWM G2 PWM G3 3~9Mb/s 6~18Mb/s 12~36Mb/s 24~72Mb/s 1.25~1.5Gb/s 2.5~3Gb/s 6 Gb/s Less Power consumption More Performance

15 UFS, Speed supported by M-PHY Two types of speed modes and gears supported by M-PHY HS-MODE STALL HS-BURST HS-G1: 1.5Gbps HS-G2: 3 Gbps HS-G3: 6 Gbps LINE-CFG LS-MODE SLEEP PWM-BURST PWM-G1: 3~9 Mbps PWM-G2: 6 ~ 18 PWM-G3: 12 ~ 36 PWM-G4: 24 ~ 72 PWM-G7: 192 ~ 576 HIBERN8 DISABLED UNPOWERED

16 emmc vs. UFS:: Which do you prefer? Congested Parallel interface emmc Simple faster Serial Interface UFS

17 emmc vs. UFS :: Serial is technology trend More than just performance numbers! Full Duplex; separated TX and RX Future expansion for multi lanes HOST CLK CMD DATA0 DATA1 DATA7 MMC interface (Parallel interface) DAT A 0 DATA 1 DATA 7 CMD DEVICE CLK CMD DATA0 DATA1 DATA7 HOST CLK TX + TX - RX + RX - UFS interface (Serial interface) RESP. DAT A CMD Full Duplex DAT A DEVICE CLK RX + RX - TX + TX - V DD V DD V DD V DD V SS V SS V SS V SS

18 Queuing & Asynch I/O Otherwise, competing to meet the time!!

19 emmc vs. UFS :: Sync vs. Async Set it and forget it Optimal for multi processing Sync I/O (e-mmc) : one-by-one Host process CMD RSP TRANSACTION CMD RSP ASync I/O ( UFS ) : send it and forget it Host process Host process CMD TRANSACTION CMD TRANSACTION

20 UFS s Queuing/Re-ordeing :: How? More than just performance numbers! Support of Command queuing & SIMPLE Command Queuing Command Reordering & Parallel Request Operate CMD13 Operate CMD25 Operate CMD 46 CMD 1 CMD 2 CMD 1 CMD 2 CMD 4 NAND chip no.1 CMD 3 UFS CTRL CMD 4 CMD 3 CMD 5 CMD 6 NAND chip no.2 CMD 5 CMD 6

21 Comparison Single-threaded vs. Concurrent and out-of-order executing READ CMD (Address A) READ CMD (Address A) Read Access Latency READ DATA (Address A) WRITE CMD (Address B) READ CMD (Address C) Read Data Transfer WRITE CMD (Address B) WRITE DATA (Address B) WRITE DATA (Address B) READ DATA (Address C) Write Data Transfer and Programming READ DATA (Address A) Time Host Write Data Transfer and Programming e.mmc Host Read Data Transfer Next Command UFS READ CMD (Address C) Read Access Latency READ DATA (Address C) Read Data Transfer Next Command e.mmc Single-threaded operational model Half-duplex data transfer Must wait for a command execution to complete before issuing the next command UFS Supports concurrent operations, command queuing, out-of-order execution Full-duplex data transfer

22 emmc vs UFS :: Feature Comparison UFS includes both { mobile + computing } features Performance, Efficiency, Scalability for future mobile designs 2.0

23 UFS overcoming emmc s Performance Random Write x3 Mobile OS Storage Pattern Analysis x1 Ran Write, 18% Seq Read, 28% emmc UFS Seq Write, 12% Ran Read, 42% Source : Source: Samsung Samsung Internal Research

24 Easy to Implement: Standard HCI Support Standard UFSHCI (UFS Host Controller Interface) Standard UFS Driver (e.g. Linux) works on all APs Smartphone OS Device Driver Standard UFS Device Driver for UFSHCI Host Controller Standard Host Controller Interface AP

25 Easy to Implement: Standard HCI UFSHCI defines the standard register-level host controller interface for UFS device. UFSHCI UFS

26 UFS2.0 Satisfying Bandwidth Requirement for interworking with major mobile components UFS will overcome the bottleneck of interface between WiFi (802.11ac, 3.5 Gbps) and USB3.0( 4 Gbps ) At least 6 Gbps Interface speed is needed for better UX as of 13. MB/s Mobile Interface Trend Up to 3.5 Gbps USB3.0 Up to 4 Gbps 6~12 Gbps

27 It s time to move on UFS!! Higher Performance while having Less total power consumption. 2.4 GB/s UFS 3.0 (tentative) SCSI Based Async Protocol 1.2GB/s UFS 2.0 UFS 2.x (tentative) Memory Card Based Sync Protocol 400 MB/s emmc4.3 emmc4.4 emmc4.41 emmc4.5 emmc5.0 emmc5.1 (tentative) ~16

28 Higher Performance With Higher Energy Efficiency

29 Summary Mobile industry seeking higher performance and energy efficiency. UFS is the successor of emmc and next generation of mobile storage solution having mobile centric features, providing high performance, energy efficiency and speed scalability is suitable for multi-processing and multi-processor environments.

30 Thanks!!