Recent Advancements and Future Challenges of Storage Systems
In the Internet environment, hard drives are becoming global storage devices that can access many types of data, manage and locate desired data, and securely preserve it wherever it resides.
By David H. C. Du, Fellow IEEE
Traditional goals of storage systems – performance, scalability, availability, and reliability
Other challenges – manageability, searching for the desired information, energy efficiency, long-term data preservation, and data security
The research on magnetic disks focuses on how to increase the aerial density and how to improve the reliability of the drive.
Another feature that has been included in today’s disk drives is a failure warning provided to the host systems when error rates exceed a threshold value. In 1994, a failure warning standard specification called self monitoring and reporting technology (SMART) was adopted by the disk drive industry.
On some disks like fiber channel (FC) drives, the processor can be programmed to execute XOR computations. By computing XOR on disks, it helps to reduce the need for such resources as CPU and redundant arrays of independent disk (RAID) controllers in parity computations.
The data available over the internet today is highly unstructured and heterogeneous. Therefore, the traditional way of accessing data via file name or url may not be adequate. As we are moving into the direction of accessing data based on their semantics, how to store semantic information with the data and how to allow data retrieval based on semantic become extremely challenging.
Intelligent storage devices – how we take advantage of the onboard computing and memory capability of a disk
DAS – direct attached storage
1. SCSI – small computer systems interface
2. ATA – advanced technology attachment (also known as IDE)
When multiple servers are required in an organization, DAS may seem to be low in cost from eeach server’s point of view. When the number of servers becomes larger, the DAS model becomes inefficient and expensive in the total cost of the ownership
NAS – Network attached storage
1. NFS – Network file system
2. CIFS – common internet file system
SAN – storage area network
Fiber channel and InfiniBand(IB) are two popular standards that provide physical connections and communication protocols in SAN. To a lesser extent, serial storage architecture (SSA) and gigabit (or 10 Gbit) Ethernet are also used for this purpose.
Supported topology – point to point, loop topology (FC-AL), and fabric
Supported topology – SSA string, SSA loop, and switched
Strong point – spatial reuse (multiple nonoverlapping simultaneous transfers on loop)
Limitations of SAN – distance and cost -> IP-based storage solutions
3 major IP storage standards – iSCSI, fiber channel over IP (FCIP), and iFCP
OSD – object-oriented storage device, intelligent storage device
Fault-tolerance storage – RAID
Additional challenges for current and future storage systems
Efficient power energy consumption – Massive array of idle disks (MAID), popular data concentration (PDC), Hibernator, dynamic revolutions per minute (DRPM)
Safe data protection – backup and efficient retrieval of keys, key recovery, long-term management, usability, scalability
Long-term data preservation
Wednesday, March 25, 2009
1018 325i 3D 3D Printer 3M 500GB 7200RPM 747 850i A-GPS A-ha A8 ACCIDENT Actor Administrator Privilege ADOBE AdSense aGPS Airplane Algorithm Animation Ansur Antennagate API Apple AppleCare April Fool ARLuxrender Asian Assisted GPS ATT Audi Auto Bash Battleship BBC Bejeweled Bejeweled 3 Belkin Bike BITCOIN Black n Decker Blender Blog Blogspot Bluetooth BMW Bose Browser BTC Bump mapping Butter Butterface Butterfly C C++ C220 Calculator Calvin Klein CAR Cartoon Casshern CBR CBR600RR Cell CF CG Chair Chinese Chrome City Hunter CK Clie Clothe Coffee Coffee maker Color Comics Command Prompt Comment Commercial Compiler Computer Computer architecture Computer graphics Computer science Connex Content-Aware Fill Cowboy Bebop CRYPTOCURRENCY Cryptography CURL Cygwin Dabdate DB Decal Design Design thinking Development Digital Camera Digital communication Disaster Diskette Display Dog Dragon Ball Drama Drawing Driving Drying rack DSP Duck E-TRADE EA Earthquake Easter Egg eBay Economy Encryption ENGINEERING Error ESL etc ETH Ethernet expect F1 Face Fashion find Firefox Fish Flight Dynamics Floppy FON Food FREE Fun FWD G4 Game Gangsta Gangster GDAX GFX Ghost GIT Gizmo5 Golf Google Google Analytics Google Voice Gossip GPS Graphics Green Day GTI Gundam Gurren Lagann Hacking Hackintosh HANGOUTS HARRP HASP SRM HCI HDD Headset Helicopter Helio High-tech History Hobby Honda Horror HP HTS Humor Hyundai iBook iBook G4 IKEA Illustration Image processing information theory Initial D Intel Internet Intro Iomega iPad iPhone iPhone 4 iPhone theme iPod iPod Video Iron IU Jailbreak Japan Java Jawbone Jeremy Jordan Jet Jetpack K12KB KAO Ken Block Ketchup Keynote KORBIT Korea Korean Kpop KRAKEN Kumho Kuwait Language Laptop LaserJet LCD Leaf Lego Lenovo Leopard Lexus LG Library Light saber Lightning Linear algebra Linux login LTC LTE Luxrender Lyric M30 MAC MacBook Macintosh MACOS Macross Macross 2 Macross Plus Magic MapReduce MARKET Matlab Mazinger Z MDRCBB Mechanical engineering Memory MESSAGE Microsoft Microwave Miniature Mio MLT Mobile Mobile Phone Moped Motorcycle Motorola Mouse Movie MP4 Music Music video Network Nike NODE. JS Nonlinear Optimization NORWAY Novel Octave Odaiba Olleh OpenGL Opening Orthodontics Oslo OSX Outlook Parody PBRT pctools Peanut Performance Perl Phone Photoshop PHP Picture Pidgin Plane Playstation Poem Polar bear Pop Portuguese post Pragma Prank Call Printer Program PROGRAMMING Protocol PS PUMA Push Push Push II PushPush PwnageTool PYTHON QuickTime R8 RAM RAYTRACING RAZR RC Recording Report Robot Rock Rocket punch RSYNC Russel Crowe RWD Samsung Sandstorm Satellite Satellite Radio Scanner Science Score Script SD SDK Security sed Semantic Web Semiconductor SF Shell SHOW SIP Skype SK네트웍스 Slang Sleeve Soccer SOFTWARE Sonata Song Sounddock Soundgarden Space Spyshot SQL SSD ssh sshd Stanford bunny StarTrek Starwars Stethoscope Steve Jobs Sticker Stock Storage system Subaru Sun Super Deformed T-Shirt Taekwon V TALK TBD Tease Technology Teeth Telecommunication Tennis tethering Textfree TH55 The Perfect Storm Theme TI-89 TIBURON Tires Titanium Tom Mabe Tooth Tooth Explorer Torrent Toshiba Toshiba Power Saver Toy TPS Transformer Tsunami TV TV shows Ubuntu UC Ultrabase UMN Universal Century Unix Unlock USB Used Video Virtuosity Vista Visual Studio VISUALC++ VoIP VW WALLET Wallpaper Wanna Girl Wardriving Web 3.0 Wedding WiFi Wild Willy Windows Windows 7 Windows Vista Wireless WireShark WMV WOW WPS WRE54G X61 xargs XBOX XCode Yamato YF Youtube Z Gundam Zeliard Zuma 김간지 김현국 미국여자 방배추 뽀로로 위성 라디오 유희열 일본여자 조까를로스 주역 천자문 周易 天字文 德經 老子
- ► 2017 (34)
- ► 2016 (26)
- ► 2015 (27)
- ► 2014 (15)
- ► 2013 (24)
- ► 2011 (146)
- ► 2010 (170)
- Nelder-Mead method
- What is Simplex?
- Audi Shark
- What is CCI?
- LG LGenius Innovations Keynote Highlights
- Disk Scheduling In Linux
- MB_ICONSTOP makes a sound that associated with thi...
- DFTL: A Flash Translation Layer Employing Demand-b...
- uFLIP: Understanding Flash IO Patterns
- Non Volatile Cache Command Proposal for ATA8-ACS
- NAND Flash Memory and Its Role in Storage Architec...
- Advances in Magnetic Data Storage Technologies
- Data Center Power Management
- Recent Advancements and Future Challenges of Stora...
- Blurring the Line Between Oses and Storage Devices...
- SANDISK INTRODUCES ExtremeFFS – NEW FLASH MANAGEME...
- Semantically-Smart Disk Systems
- μ-tree: an ordered index structure for NAND flash ...
- A Reconfigurable FTL (Flash Translation Layer) Arc...
- Design Tradeoffs for SSD Performance
- A log buffer based flash translation layer using f...
- A superblock-based flash translation layer for NAN...
- Large Block CLOCK (LB-CLOCK) Algorithm: An Improve...
- A Log-based Flash Translation Layer for. LargeNAND...
- LGeDBMS: A Small DBMS for Embedded System with Fla...
- Intel Corporation. Understanding the Flash Transla...
- Endurance Enhancement of Flash-Memory Storage, Sys...
- M-Systems. Technical Note: TrueFFS Wear-Leveling M...
- M-Systems. Quick Reference Guide: TrueFFS 6.x Soft...
- A Transactional Flash File System for Microcontrol...
- Eviction Based Cache Placement for Storage Caches
- Belady's MIN in cache
- Exercise 16.3.5 - Introduction to Algorithms
- ▼ March (33)