| 词条 | Network Direct Attached Storage |
| 释义 |
Network Direct Attached Storage (NDAS) is a proprietary storage area network system, originally marketed by the company Ximeta, for connecting external digital storage devices such as hard-disks, flash memory and tape drives via the Ethernet family of computer networks. Unlike other more common forms of networked storage, NDAS does not use TCP/IP to communicate over the network. Instead a Lean Packet Exchange (LPX) protocol is used.[1] NDAS also supports some limited RAID functions such as aggregation and mirroring. HistoryIn 2001, Han-gyoo Kim of Korea and Zhe Khi Pak of Russia applied for a US patent on a "network-attached disk".[2] By 2002 the first NetDisk (up to 80 GB) was marketed as a low cost alternative to full computer based network storage options. The Ximeta company was founded in 2003.[3] In 2004 Kim applied for a patent to allow multiple clients write access to the shared block storage device.[4] By 2006, sizes up to 500 GB were supported.[5] In 2008 an NDAS device called "ShareDisk Gigabit" created by Co-World Cs in Germany briefly claimed the title of world's fastest network storage device.[6] In 2011 IOCELL Networks announced ownership of the NDAS system and NetDisk patents.[7] Benefits
Drawbacks
An open source management interface was made available for Linux in 2009.[9] A similar protocol is ATA over Ethernet. References1. ^{{Cite web |title= IOCELL NetDISK 351UNE Network Storage Device |series= Product review |author= Bruce Normann |work= Benchmark Reviews |date= November 28, 2011 |url=http://benchmarkreviews.com/index.php?option=com_content&task=view&id=849 |accessdate= June 1, 2013 }} 2. ^Disk system adapted to be directly attached to network. {{US patent |src= uspto |7792923 }} by Han-gyoo Kim and Zhe Khi Pak, Filed October 9, 2001, granted September 7, 2010. 3. ^{{Cite web |title=Ximeta: Creator of NDAS |url= http://www.ximeta.com/ |accessdate= June 1, 2013 }} 4. ^System using a single host to receive and redirect all file access commands for shared data storage device from other hosts on a network . {{US patent |src= uspto |7457880 }} by Han-gyoo Kim, Filed September 27, 2004, granted November 25, 2008. 5. ^{{Cite web |title= Ximeta NetDisk Portable |work= Review |publisher= CNet |url= http://www.cnet.com/network-storage/ximeta-netdisk-portable-500gb/4505-3382_7-32017036.html |date= November 2, 2006 |accessdate= June 1, 2013 }} 6. ^{{Cite web |title= The World’s Fastest Network Storage |url= http://www.ximeta.de/pdf/ShareDisk_Gigabit-Ger.pdf |publisher= Ximeta, Germany |date= May 2008 |accessdate= June 1, 2013 }} 7. ^{{Cite news |title= IOCELL Networks Purchases Innovative NDAS Technology |work= News release |publisher= IOCELL |url= http://www.iocellnetworks.com/neo/index.php/press/item/iocell-networks-purchases-innovative-ndas-technology |date= August 4, 2011 |accessdate= June 1, 2013 }} 8. ^{{Cite web |title= Network Direct Attached Storage For Linux |url= http://ndas4linux.iocellnetworks.com/ |work= Vendor web site |accessdate= June 1, 2013 }} 9. ^{{Cite web |title= kandas: Management infrastructure for NDAS devices |url= http://code.google.com/p/kandas/ |work= Google code web site |accessdate= June 1, 2013 }} 3 : Storage area networks|Network protocols|Ethernet |
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