THE WHATIS.COM WORD-OF-THE-DAY July 5, 2002 NDMP ______________ TODAY'S SPONSOR: The .tv Corporation
Save 30% on Web addresses! Not only will you get a great deal on your Web addresses, but you'll also get superior customer service, innovative products and services and a place that is easy to register and manage your Web addresses. Great names are still available. Register the names you want before someone else does! Check it out now: http://WhatIs.com/r/0,,4280,00.htm?the.tvcorporation ______________ TODAY'S WORD: NDMP See our definition with hyperlinks at http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci837192,00.html NDMP (Network Data Management Protocol) is an open protocol used to control data backup and recovery communications between primary and secondary storage in a heterogeneous network environment. NDMP specifies a common architecture for the backup of network file servers and enables the creation of a common agent that a centralized program can use to back up data on file servers running on different platforms. By separating the data path from the control path, NMDP minimizes demands on network resources. Backup operations can be performed locally (for example, directly between a file server and a tape drive) and yet managed by a centralized application. NDMP uses a common data format that is written to and read from the drivers for the various devices. NDMP supports backup for network-attached storage (NAS) devices. NDMP addresses a problem caused by the particular nature of NAS devices. These devices are not connected to networks through a central server, so they must have their own operating systems. Because NAS devices are dedicated file servers, they aren't intended to host applications such as backup software agents and clients. As a consequence, administrators had to mount every NAS volume by either the Network File System (NFS) or Common Internet File System (CIFS) from a network server that did host a backup software agent. However, this cumbersome method led to an increase in network traffic and a resulting degradation of performance. By defining a common agent to interface between any NAS device and any backup software program, NDMP minimizes demands on network resources, and enables localized backups and disaster recovery. The protocol is being further developed by the Storage Networking Industry Association (SNIA) NDMP Working Group. RELATED TERMS: protocol http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci212839,00.html open http://whatis.techtarget.com/definition/0,,sid9_gci212705,00.html heterogeneous http://whatis.techtarget.com/definition/0,,sid9_gci212245,00.html driver http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci212002,00.html network-attached storage http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci214410,00.html Network File System http://searchwin2000.techtarget.com/sDefinition/0,,sid1_gci214121,00.html Common Internet File System http://whatis.techtarget.com/definition/0,,sid9_gci213851,00.html disaster recovery http://searchsystemsmanagement.techtarget.com/sDefinition/0,,sid20_gci752089,00.html ______________________ SELECTED LINKS: The NDMP specification is available for downloading. http://www.ndmp.org/download/ Paul Mayer offers a white paper on "NAS Device Backup Solutions." http://www.datalink.com/whitepapers/NAS_Device_Backup_Solutions_white_paper.pdf SearchStorage offers "Best Web Links" about Network Attached Storage (NAS). http://searchstorage.techtarget.com/bestWebLinks/0,289521,sid5_tax441,00.html ______________________ WHATIS DISCUSSION FORUM | Challenge #7: Token ring or Ethernet Challenges are another learning tool where you (the reader) try to solve various real-life IT problems. Sometimes there's one right answer, but more often than not (just as in real life) there are several ways to approach the problem -- and that's why reading how other people would troubleshoot the Challenge is a fun way to learn. CHALLENGE #7: Kennedy High School had five computer labs that were on a token ring network but operated independently. Tim, the technology teacher, was given the ok to connect the labs to each other. Should he keep the labs token ring or make the switch to Ethernet? You tell us. >>Try the challenge http://whatis.discussions.techtarget.com/WebX?[EMAIL PROTECTED]^1@.1dcfae0e/49!viewtype=threadDate&skip=&expand= ______________________ QUIZ #28 | Ethernet How much do you know about the most popular network technology in the world? Take our latest quiz and find out! http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci834253,00.html ______________________________ RECENT ADDITIONS AND UPDATES [1] CompactFlash card http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci836292,00.html [2] counterfeit detector pen http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci835821,00.html [3] user acceptance testing http://searchvb.techtarget.com/sDefinition/0,,sid8_gci836031,00.html [4] NET FAIR http://searchebusiness.techtarget.com/sDefinition/0,,sid19_gci833626,00.html [5] Sable http://whatis.techtarget.com/definition/0,,sid9_gci833759,00.html ____________________________________________________________________ ::::::::::::::::::: WHATIS.COM CONTACTS ::::::::::::::::::: LOWELL THING, Site Editor ([EMAIL PROTECTED]) ____________________________________________________________________ MARGARET ROUSE, Assistant Editor ([EMAIL PROTECTED]) ___________________________________________________________________ :::::::::::::::::::: ABOUT THIS NEWSLETTER ::::::::::::::::::::: Created by TechTarget (http://www.techtarget.com) TechTarget - The Most Targeted IT Media Copyright 2002, All Rights Reserved. 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