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Recording Technology Review- past, present, future

Recording Technology Review- past, present, future. JIM CRAZE OFFERING TECHNOLOGY SOLUTIONS PO BOX 339, FULTON, MD 20759-0339 Telephone (301) 725 1427 Email crazej@ix.netcom.com. Scope of this Talk. Review of data storage methods Specific experiences with recorders & tape

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Recording Technology Review- past, present, future

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  1. Recording Technology Review- past, present, future JIM CRAZE OFFERING TECHNOLOGY SOLUTIONS PO BOX 339, FULTON, MD 20759-0339Telephone (301) 725 1427 Email crazej@ix.netcom.com..

  2. Scope of this Talk • Review of data storage methods • Specific experiences with recorders & tape • Applications for helical scan data recording formats • Future data format possibilities 3-5 years • Future data storage needs at CERN? • When to focus on future possibilities

  3. Recording Methods • Longitudinal recording- fixed heads, moving tape • Serial serpentine-moveable heads, moving tape, multiple passes • Traverse-rotating heads, moving tape, • Helical scan - rotating heads, moving tape, • Optical- moveable heads, rotating soft & hard disk media • Hard disk- moveable heads, rotating media • Solid state recording- Flash, DRAM chips • Holographic- not yet, but maybe next year, R&D

  4. Recording Methods, Advantages and Disadvantages • Data rates & Capacity- key points • Access time- important to users • Archival properties & Shelf life- estimates • Backward compatible formats-limits • Format roadmaps forecast the future • Accuracy, key information for users

  5. Applications Past, Present, Future • Past-acquisition, process, storage-archival • Present- acquisition, process, storage-archival- environmental changes- NASA satellites increasing • Future- web storage increasing, significant changes in volume • Government will be forced to turn to data storage instead of paper to keep costs down and timely services available

  6. Who Depends on Helical Scan Recording Technology? • Professional video market, ENG BetaCam, VHS consumer video, data & video back-up • NASA Space Shuttle digital mapping missions- Endeavor • Instrumentation data & some satellite down links • US & NATO military data & video applications i.e., laboratory, fixed wing aircraft & helicopters • Airborne operating environments- high & low temperature extremes

  7. Not All Helical Scan Formats are Created Equal- examples • AIT data recorder-Sony • Camcorders-8mm- Hitachi, Panasonic, Sony, TEAC-Hi8mm, DV-6mm, others • D3 composite video recorder-Panasonic • DD3 data recorder- STK • DDS data recorder-HP, Sony, others • DIR1000 data recorder-Sony

  8. Not All Helical Scan Formats are Created Equal- comment • D3 composite video recorder was designed to use a co-planner MP tape cassette and was later modified to be a DD3 data recorder with a single spool cassette. This process was only partially successful in operational environments and was eventually rejected by users as not reliable. • Any negative experience during or after recording data tends to get a great deal of attention and data owners have a long memory for formats that cause losses in productivity. Most helical scan formats have been successful after development.

  9. Trends in data storage • Disaster recovery plans & funding • Increased emphasis for off-site storage • Migration of data save space & verify data • Higher capacities & data rates • Automated operations may decrease staff • Customer testing data formats to verify specifications

  10. Trends in Data Storage -2 • Cost of storage devices decreasing 35-40% per year • Cost to manage storage increasing- estimates at 3-10 times acquisition costs • Strategy Research Corp report “The Future of the Business Network”, network administrators manage an average of 5 TB. Others estimated 15TB in 2003– can anyone really “manage” that much data? • Overhead costs increasing including energy -Data Center power consumption 100 watts per square foot, as compared to 10 watts per square foot for average home • Disaster recovery costs will increase significantly

  11. Search for Future Data Storage Products • Reliability, Service, Cost, Reliability-key • Company plans & roadmaps- need both • Research + Investment = reliable products • Investigate, evaluate, talk to key engineers • New products driven by data security needs • Roadmap details stimulate questions

  12. Example-Sony Data Storage Roadmap • Copy of March 2002 Sony roadmap • Shows past, current products • Future product plans including SAIT • Competing products also shown • Emphasis on future, to 2008

  13. Future Data Storage Products-2002-2007 • Who wants to be first use a new product? • Past- government agencies paid for non-standard recorders and tape • Standards were important & generally required • Current- COTS products are required • Standards are still important • Future- COTS expected to dominate the market • Standards- should be more important for data interchange

  14. Future Data Storage Products-2 • Magnetic tape- demand for library compatible cartridges increases • Small format library demand increases for work stations as cartridge capacities increase • Metal Evaporated tapes give higher capacities • MP & ME tape remain cheaper alternatives • Hard disks-may still be more expensive • Optical disks- expand in capacity-slow data rate • Holographic recording- slow to start

  15. Future Data Storage Products-3 • Sony-SAIT-roadmap 2002-2007 • LTO- roadmap 2002-2006 • Super DLT-roadmap 2002-2007 • Mammoth-3 late 2003 • STK-9940-B, 2002, roadmap? • Technology announcements & new products & next generation products will continue each year to meet demands for increased capacity, speed, data access.

  16. Future High Data Rate Product • US DOD uses some COTS recorders • Sony 512 Mbits/ps currently available • Next generation 1024 Mbits/ps introduced April 2002 with 600GB cartridge- 19 mm tape width (model # DIR2000U) • This helical scan recorder selected by VERA astronomy program in Japan • More details available on Sony DIR2000U

  17. Future Security Applications • What drives the need for secure data? • U.S. DOD wants to mandate IT sector verify that its hardware-software products are secure, 11 April 2002. • US Space Command detected 41,558 computer network attacks in 2001, a 75% increase over 2000. As of April 9 2002 they have detected 10,407 incidents.

  18. Future Security Applications-2 • Future “secure systems” from the IT sector will be more expensive • Future data storage products can be a part of a “secure” storage architecture • Increased data capacity of removable cartridges makes off site & on site storage more economical- less space • Hard drive “hot spare”- is not a “quick” fix but it adds a level of data protection over “time”

  19. How to Keep Data Readable • Handle with care – simple procedures • Environmental controls, 40-45 % RH, 65-70 degrees F • Exercise flexible media- Mylar has a memory • Migration is not just for the birds • Test the quality of data- by lot number, before & after recording • Read tape specifications for storage guidance

  20. Comments and Questions • Copies of SAIT roadmap & Power Point presentation available • Copies of high data rate recorder Power Point presentation available • Please use the sign-up information sheet and leave your business card for follow-up items of interest • Jim Craze, crazej@ix.netcom.com • Phone 301 725 1427

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