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Personal Storage: Opportunities and challenges for pocket-sized storage devices in the Windows world

Personal Storage: Opportunities and challenges for pocket-sized storage devices in the Windows world. Emily Hill Program Manager WDEG – Storage Microsoft Corporation. Vishal Ghotge Program Manager Core File Systems Microsoft Corporation. Storage Fabrics Server/Enterprise.

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Personal Storage: Opportunities and challenges for pocket-sized storage devices in the Windows world

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  1. Personal Storage: Opportunities and challengesfor pocket-sized storage devices in the Windows world Emily HillProgram ManagerWDEG – StorageMicrosoft Corporation Vishal GhotgeProgram ManagerCore File SystemsMicrosoft Corporation

  2. Storage Fabrics Server/Enterprise Personal Storage Client/Consumer Optical Platform Client/Consumer Preferred Storage Platform Partner/Customer Windows Storage DevicesStrategic pillars Leading platform enabling storage fabric adoption Optimized platform features enabling your Windows experience, here and now Timely, comprehensive, quality platform support for optical devices Preferred platform for developing, deploying,and using storage devices

  3. Agenda • How is the Microsoft focus changingfor personal storage? • Windows Vista reflections of those changes • Driver integration work • New scenarios enabled • Solutions to customer problems • Our thoughts for the future • New scenarios • Technology updates

  4. What Is Personal Storage • Flash Cards • Small form factor drives • UFDs • Smartcards • Cameras • Cell phones • Etc. Size Desktop (non-portable) PCs PowerSupply Bus Speed Smart Phonesand PDAs Independent power High Bandwidth (1+gb/s) StorageCapacity Processing Power Personal Storage Devices Multi-GB PC-class None/ Low

  5. Overall Approach • Creating a platform infrastructure to enable industry expansion in this space • Broadening the range of users and scenarios • Promoting and delivering key end to end scenarios • Participate in the industry eco-system offering guidance and solutions for vendor integration issues

  6. Security: A CriticalPiece Of The Puzzle • Security is driving IT decision making • “Improving data security remains the most important investment priority in 2005” (IDC, 2005 Personal and Mobile Computing Survey) • “Consumer Security Fears Help Drive Adoption of New Devices” (Jupiter Research, 2005) • Security enables the growth of personal storage use in the enterprise • Security opens up a wider range of uses for all users • The industry needs to advance as a whole • Consumers and small businesses are not prepared for the security threats inherent in a digital lifestyle • Fear could diminish adoption of any new functionality if not preceded with security improvements

  7. Windows Vista Features: Group Policy • New Group Policy settings • Enable IT Admins to manage removable storage use in their environments • What it does • Configurable on a per machine and per user basis • Covers traditional storage as well as Windows Portable Devices • Allows addition of custom device class GUIDs • Shipping details • Windows Vista Only • Companion to DMI installation policies

  8. Windows Vista Features: Driver Improvements • Windows Vista and Windows XP SP2 • SD • Performance Improvements • MMC Card support, compliant with SD host controller standard • High speed card support • Smartcard • Continued robustness improvements • Windows Vista Only • SD • High capacity card support • New SDIO device sample code in WDK • Windows Logo program/ validation tests for Standard Host Controller • USB Storage • 16 byte CDB support • Improved idle support • 128k default transfers

  9. exFAT Vishal GhotgeProgram ManagerCore File ServicesMicrosoft Corporation

  10. Agenda • Background for FAT16/FAT32 • Need for a new filesystem • Advantage of “FAT” • Design goals of exFAT • Some key features of exFAT • Development/release schedule • Licensing information

  11. Background • FAT12/16 is the standard in the CE world • All CE devices implement FAT • All flash media are sold pre-formatted with FAT • FAT16 can handle up to 2 GB media • FAT32 has already emerged as the next standard

  12. Advantages Of FAT 12/16/32 • FAT is a simple filesystem • It can be easily implemented in firmware • It is easy to achieve interop • Industry understands FAT very well

  13. Need For A New Filesystem • Some limitations for FAT32 • Maximum file size is 4 GB • Designed for smaller capacity media • Difficult to add new features • Designed/implemented for hard-drivesnot for flash • Windows format tool can format up to 32 GB media with FAT32 • To meet new requirements of flash media and devices we need a new filesystem

  14. Design Goals Of exFAT • Be as similar to FAT32 as possible • Overcome FAT32’s limitations • Design for the future • Make it extensible • Scale to large volume sizes • Manage large files • Designed to optimize for flash media exFAT – A simple, extensible, rich filesystemfor next generation devices and flash media

  15. Some Key Features Of exFAT • Free space bitmap • Identifies free and available clusters on the volume • Advantage • Faster look-up for free space allocation • Faster deletes • Support for large files • File size field is 8 bytes • Theoretical maximum file size of 264 bytes • Large cluster size • The on-disk structure limit for cluster size is 2255 • Implementation limit is 32 MB

  16. Some Key Features Of exFAT • Extensibility for the future • Directory structure is flexible and extensible • Easy to add new features • Can add some features without breaking compatibility • Name hashes • 2 byte checksum of up-cased file name • Allows for faster checks of filenames • OEM specific parameters and types • Feature to store OEM specific volume information

  17. Points To Note • exFAT is not backward compatible with FAT32 • There are no “short names” in exFAT

  18. Development/Release Plans • Currently under development in Windows and Windows CE • Windows • Will be available post Windows Vista • “exFAT” beta program – http://connect.microsoft.com • Windows CE • Will be available on the next Windows CE release

  19. Areas Of InvestigationFor Future Investments

  20. Targeted Solutions • End to end scenarios • Safe placement of personal/enterprise content • Carrying protected content on a card • Enabling authentication for personal storage • Platform • Feature negotiation • Industry guidance on media readers • Movement to user mode drivers where feasible

  21. Working Assumptions: User • Users want security and privacy the most • They just expect it to be performant, stable, and reliable • Users want seamless common experiences • Uniform interface for bulk data and metadata, regardless of media type • Users want control the movement of their sensitive content • Users want the ability to managetheir data and devices

  22. Working Assumptions: Developers And Vendors • Developers • Want to find and manipulate devices and device contents • Developers will build new types of applications to work withmultifunction storage devices • Want a uniform enumeration, description and control mechanism for devices • Want a common content model for different device classes • Developers desire the same model for “storage” like devices,independent of protocol underneath • Vendors • Want to lower their device development and support costs • A common control/transfer protocol will lower vendor development costs • Testing and validation tools would lower vendor development costs • A common content format will lower vendor development costs • Content vendors want easy to use common protection

  23. Supporting Technology Updates • SD • ADMA support after the standard is finalized • Smartcard • Investigating a moving to UMDF • Simplify PnP and power code • Enables user mode debugging • Improves system stability and reliability

  24. UMDF Smartcard Reader Support Janet SchneiderSoftware Design Engineer WDEG- Storage

  25. Call To Action • Sign up for the exFAT beta program • Start testing with exFAT • Be aware, and keep an eye on this space as we continue to grow and change • Engage with Microsoft if this space is critical to your business • Give us feedback on our assumptions and where our directions need to go!

  26. Additional Resources • exFAT licensing information • Contact: • Visit http://go.microsoft.com/fwlink/?linkid=65752 • Web resources • Whitepapers: http://www.microsoft.com/whdc/device/storage • Related sessions • The rest of the storage track! • User-Mode Driver Framework: Introduction and Overview • Innovations in Wired and Wireless USB • Feedback: Iplg @ microsoft.com Hec6stor @ microsoft.com

  27. © 2006 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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