1. FLASH FOR THE REAL WORLD SEPARATE HYPE FROM REALITY

2. WEBTECH EDUCATIONAL SERIES FLASH FOR THE REAL WORLD SEPARATE HYPE FROM REALITY Join us for a live webcast and hear Hu Yoshida, chief technology officer of Hitachi Data Systems, discuss the real-world criteria for making an effective decision when evaluating flash storage. With all the noise in the market it can be difficult to separate fact from fiction in order to evaluate the performance, efficiency, and economic trade-offs for flash storage Specifically, youll learn how to determine if flash storage will help you Actually achieve the performance you need as you compare technology options Realize efficiency gains that extend beyond the promise of flash performance Make the economic case for real-world business decisions before taking the leap After attending this webcast, you will be able to Understand the important differences between commodity flash storage and storage designed for flash Maximize the return on your flash storage to exceed the abilities of flash appliances Identify potential efficiencies, beyond performance improvement, that your company might gain by employing flash storage 3. UPCOMING WEBTECHS Maximize IT WebTechs Hitachi Unified Storage and Hitachi NAS Platform Performance Optimization with Flash Acceleration, August 14, 9 a.m. PT, 12 p.m. (noon) ET Comprehensive and Simplified Management for VMware vSphere Environments Now, Even Better!, September 11, 9 a.m. PT, 12 p.m. (noon) ET Easily Deploy Microsoft Private Cloud and Microsoft SQL Server 2012 Data Warehouse on Hitachi Converged Solutions, Sept 25, 9 a.m. PT, 12 p.m. (noon) ETCheck www.hds.com/webtech for Links to the recording, the presentation, and Q&A (available next week) Schedule and registration for upcoming WebTech sessions Questions will be posted in the HDS Community: http://community.hds.com/groups/webtech 4. FLASH FOR THE REAL WORLD SEPARATE HYPE FROM REALITY 5. HYPE OR REALITY? Flash storage is nonvolatile Flash can replace DRAM for cache and memory Flash SSDs are built for enterprise storage Flash storage is 10 times more expensive than HDD Flash storage will replace hard disk drives All-flash arrays will outperform hybrid flash arrays 6. STORAGE MEDIA TECHNOLOGY TRENDS Hard disk technology is slowing down end of 50-year trend MLC flash will approach price of high-performance hard drives Optical disk and tape continue price trend A hybrid pool of flash and hard drives will be required to reduce cost and increase performance($/GB) 100.00ReRAMPRAMSLC Flash SSD10.00MLCFlash SSD1.00SAS HDD0.10 Random Read Performance 70K IOPS SAS HDD 0.3K IOPS0.01 MLC SSD 0.001 CY05Tape Optical DiskCY10CY15CY20Storage Media Bit Cost Forecast MLC: Multi-level cell, SLC: Single-level cell, SAS: Serial attached SCSI, PRAM: Phase change RAM, ReRAM: Resistance RAM 7. FLASH NAND TECHNOLOGY Pages can only be written to formatted blocksThin Oxide Insulation Layer Drain When pages are updated, old pages are marked invalid Pages have to be refreshed periodically since electrons are leaking with every read and over timeSourceFloating GateN Formatting is only done on a block level This limitation causes write amplification and takes processor cycles for garbage collectionControl GateSubstrateBlock A Page 0 InvalidBlock B Page 1 InvalidPage 2 LBA:10Page 1 InvalidPage 2 LBA:10 InvalidBlock A Page 0 InvalidPage 0 FreePage 1 FreePage 2 FreePage 1 FreePage 2 FreePage 1 FreePage 2 FreeBlock BBlock APage 0 FreeNPage 0 LBA:10Block BPage 1 FreePage 2 FreePage 0 LBA:10Every write degrades the insulation layer until the cell is no longer usable 8. COMPARISON OF STORAGE TECHNOLOGIESTechnologyReadWriteEndurance CycleNonvolatileDRAM