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Topic: Digital Linear Tape

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	Tape drive - Wikipedia, the free encyclopedia
		A tape drive, also known as a streamer, is a peripheral device that reads and writes data stored on a magnetic tape or a punched tape.
		Tape drive storage is usually referred to with the assumption of 2:1 compression; the raw storage capacity is known as the native capacity.
		In the 1980s some forms of tape drives were used as inexpensive alternatives to disk drives, examples include the ZX Microdrive and Rotronics Wafadrive.
	en.wikipedia.org /wiki/Tape_drive (287 words)

	Digital Linear Tape - Wikipedia, the free encyclopedia
		Digital Linear Tape (DLT) is considered a de facto standard for magnetic tape technology used for computer data storage.
		The cartridges contain a single reel and the tape is pulled out of the cartridge by means of a leader tape attached to the takeup reel inside the drive.
		Tape speed and tension are controlled electronically via the reel motors; there is no capstan.
	en.wikipedia.org /wiki/Digital_Linear_Tape (384 words)

	Digital Linear Tape: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-11-03)
		Digital Linear Tape (DLT) is a de facto standard for magnetic tape magnetic tape quick summary:
		Linear tape-open (or lto) is a computer storage magnetic tape format developed as an alternative to digital linear tape (dlt)....
		Digital data storage (dds) is a format for storing and backing up computer data on magnetic tape that evolved from digital audio tape (dat) technology,...
	www.absoluteastronomy.com /encyclopedia/d/di/digital_linear_tape.htm (703 words)

	Digital Linear Tape - Today's New Media - Is It Better? (Site not responding. Last check: 2007-11-03)
		Digital Linear Tape (DLT) systems have been available since 1985, but recent increases in both speed and capacity have given the technology a new lease on life.
		It incorporates the ability to read older tapes, although it cannot write to them, which means it would probably be most useful in allowing organizations to maintain their present archives in a useable form.
		Where users have thousands of tapes in their libraries, there can be a considerable saving in time and money if older tapes don't have to be re-recorded on to newer ones.
	www.cbltech.com /article-dlt.html (519 words)

	Digital Linear Tape
		The Digital Linear Tape drive was designed in the late seventies by Digital Equipment Company and produced by them as the TK50 offering a capacity of 50 MBytes.
		The tape path is such that the head is the only point of contact with the recording side of the tape, so ensuring high reliability and long tape life.
		DLT is a specially combined selection of proven technologies already in use individually in other tape devices.
	www.disuk.com /reference/ref-dlt.htm (293 words)

	DLT - Digital Linear Tape
		Digital Linear Tape: A recording medium consisting of a tape cartridge containing a supply reel and a quantity of magnetic tape.
		DLT drives are faster than most other types of tape drives, achieving transfer rates of 2.5 MBps.
		Digital Linear Tape, high capacity backup tapes with tracks lineary on the tape (with helical-scan, as used in 8mm and video drives, the tracks are slanted)
	www.auditmypc.com /acronym/DLT.asp (394 words)

	Digital Linear Tape - DLT
		Short for Digital Linear Tape, DLT is a technology initially developed by Digital who later sold the technology to Quantum.
		DLT helps address storage capacity and access time when backing up information to tape drives by increasing the total capacity and speed of the tape drive and disks.
		SDLT, or Super Digital Linear Tape, is a variant of DLT that was developed later and increased the overall capacity, doubling the capacity of disks and allowing up to 300GB to be stored.
	www.xmission.com /~comphope/jargon/d/dlt.htm (91 words)

	DLT - a Whatis.com definition
		DLT (digital linear tape) is a form of magnetic tape and drive system used for computer data storage and archiving.
		In the DLT drive, data is written on the tape in dozens of straight-line (linear) tracks, usually 128 or 208.
		DLT is one of several technologies developed in recent years to increase the data-transfer rates and storage capacities of computer tape drives.
	searchstorage.techtarget.com /gDefinition/0,294236,sid5_gci759350,00.html (213 words)

	Digital Linear Tape DLT
		To combat the loss of data from the popular Digital Linear Tape - DLT tape storage system, leading data recovery expert, Vogon International, has developed the DLT Buster system to recover data from re-initialised and over-written DLT 8000 and Super DLT formats where previously it was impossible.
		DLT is a high capacity tape storage system, each tape containing up to 220GB of data, and is popular as a backup medium for large network and mainframe data storage applications.
		Use the wrong command, the wrong tape, or suffer a simple hardware malfunction and up to 220 GB of data will be lost in a second.
	www.vogon-international.us /digital-linear-tape-dlt.htm (563 words)

	The Emerging Tape Backup Market \| Page 1 \| July 24, 2000
		Tape technology is broken into two major categories: helical tape and linear tape.
		Because those who already have archives of DLT tapes may be reluctant to migrate from DLT, the DLT 8000 offers an excellent path to upgrade from DLT 4000 or to add a new tape library.
		LTO, based on linear tape technology, strives to combine the latest in ECC (error-correcting code) data distribution, data compression and head technology to form a standard that will be the foundation of future tape drives.
	www.networkcomputing.com /1114/1114ws3.html (1675 words)

	DLT - Digital Linear Tape
		Chosen for mission critical systems in U.S. government agencies and the financial industry, DLT tape drives are widely used for rapid backup of network server and workstation data.
		Also contributing to long life are the DLT drive's sophisticated tape tension servo control system and the low-contact head guide assembly's gentle tape path in which only the back of the tape touches the guide rollers.
		The DLT tape family uses half-inch MP (metal particle) tape in a space-saving single-reel cartridge, offering a unique combination of extremely high capacity (up to 70GB compressed), high speed (up to 10GB/s compressed), high reliability (over 1,000,000 passes), and rapid file access.
	www.issioptical.com /highlights/DLT_index.html (342 words)

	PCQuest : In Depth : Tape Store-ies (Site not responding. Last check: 2007-11-03)
		The 4mm DAT (Digital Audio Tape), Exabyte’s 8mm Mammoth and Sony’s AIT (Advanced Intelligent Tape) are based on HST while Quantum’s Digital Linear Tape (DLT and SuperDLT) and LTO (Linear Tape Open) by IBM, Seagate and HP employ the use of LST.
		Digital Data Storage or DDS is a DAT-based computer-data storage format, developed by Sony and HP and released in 1989.
		The main advantages of DLT are the higher storage capacity, higher data transfer rates, and higher reliability because of the HGA which does not allow the media to touch the head in the drive.
	www.pcquest.com /content/depth/103040306.asp (1068 words)

	Midrange Systems Integration 7337
		The IBM 7337 tape library has a dual-host function which will allow two RS/6000 processors to be attached to it and operate it as two independent autoloaders.
		This tape library incorporates 15 data cartridges and one or two drives in a rack-mount or desktop configuration.
		IBM digital linear tape (DLT) ½-inch tape cartridges are precision- manufactured to tight specifications assuring consistent high quality and reliability.
	www.midrangesys.com /products/storage/7337.htm (406 words)

	[No title]
		DIGITAL conducts its business in a manner that conserves the environment and protects the safety and health of its employees, customers, and the community.
		DIGITAL StorageWorks TZ88 DIGITAL Linear Tape (DLT) Drive XE "DIGITAL StorageWorks TZ88 DIGITAL Linear Tape Drive" DIGITAL Linear Tape Drive (DLT) family cartridge tape drives are industry-leading 5.25-inch streaming linear recording tape devices, designed for systems requiring high performance, high data integrity, and unattended backup.
		OpenVMS V6.2, OpenVMS V7.1, and DIGITAL UNIX V4.0x on AlphaStation3 500,600 and AlphaServer 800, 1000, 1000A, 2000, 2100, 2100A, 4000, 4100, 8200, 8400 2.
	h18000.www1.hp.com /products/quickspecs/SOC/QB00S4MW.DOC (6191 words)

	LTO shipments > "Ultrium" Tape Products Ready To Roll > August 18, 2000
		Both the LTO and DLT camps are primarily targeting B-to-B portals, Fortune 500 companies, and individuals who want absolute reliability from their backup systems, used to archive their most vital data.
		HP tape executives in Bristol, England, were unavailable for comment, although a spokeswoman in the U.S said the company was preparing an announcement for release asearly as this week.
		Helical scan is used by Sony's Advanced Intelligent Tape (AIT), Digital Audio Tape (DAT) and VCR cassettes, which slightly incline the read/write head.
	www.techweb.com /wire/story/TWB20000821S0005 (1225 words)

	Midrange Systems Integration 7205
		The IBM 7205 model 311 35GB External Digital Linear Tape Drive is an excellent solution for customers who use tape or require a larger-capacity or higher-performance tape backup.
		The IBM 7205 is an external, stand-alone, SCSI-attached, digital linear tape drive that attaches to the RS/6000 family of workstations and servers.
		In addition to reading and writing on Digital Linear Tape-format tape data cartridges, the IBM 7205 provides an excellent migration path from 1/4-inch, 4mm, or 8mm tape drives.
	www.midrangesys.com /products/storage/7205.htm (323 words)

	The Data Center Journal - Glossary (Site not responding. Last check: 2007-11-03)
		Tape storage developed in the late seventies by Digital Equipment Company, and the basis for successive generations of DLT tape drive which higher storage capacities and transfer rates.
		DLT tapes use half inch tape media, fully enclosed in a sealed case which is designed only to open when the tape is in the drive.
		Under PKI a digital certificate is generated by a trusted third party Certificate Authority (CA) and verified by a Registration Authority (RA).This digital certificate is a unique electronic signature and is used to generate personalised encryption keys.
	www.datacenterjournal.com /Tools/Glossary.asp (6671 words)

	Business Solutions - Users' Data Storage Requirements Creating Sales Opportunities For VARs (Site not responding. Last check: 2007-11-03)
		Many of these users are adopting DLT tape technology and automated tape libraries in order to meet their increased data storage requirements.
		DLT is used for the storage and archiving of data.
		Currently, Quantum (Milpitas, CA) is the sole manufacturer of DLT tape cartridges and drives, according to Whitner.
	www.businesssolutionsmag.com /Articles/1998_08/980813.htm (500 words)

	DLT (digital linear tape) - Backup Terms Explained
		A special compression algorithm, known as Digital Lempel Ziv 1 (DLZ1), facilitates storage and retrieval of data at high speeds and in large quantities.
		The DLT drive writes data to the tape in dozens of linear tracks, usually 128 or 208.
		DLT increases the data-transfer rates and storage capacities of computer tape drives.
	www.liutilities.com /products/winbackup/backupterms/DLT (86 words)

	Computer Technology Review: Fundamental Differences Between SDLT and LTO Tape Drive Servo Systems - Super Digital ...
		In linear tape recording, data is written on many adjacent tracks that run parallel to the edge of the tape.
		Using Digital Linear Tape (DLT) technology, it has been possible to push this technology to record 208 tracks across a one-half-inch tape, allowing each tape to store up to 35GB.
		Tape engineers recognized the need for a track-following servo, a mechanism that allows a tape head to dynamically follow a tape track, because track positions fluctuate due to slight media variations, mechanical tolerances, and other environmental factors.
	www.findarticles.com /p/articles/mi_m0BRZ/is_8_19/ai_57603680 (435 words)

	Digital Linear Tape (DLT) tape libraries / tape jukeboxes
		With capacities ranging from 2 to 45 drives and from 16 to over 1,300 cartridges, DLT libraries from ATL support a wide range of backup and archival needs--from small to midrange LANs to large super-servers with hundreds of networked users.
		ADIC offers the largest line of DLT tape storage products in the industry, from scalable, data center libraries to standalone drives and media.
		Its TLS-6000 family of DLT and SuperDLT tape librairies includes several distinct models that offer the widest range of capacity and throughput options in the industry.
	www.unylogix.com /data_storage/tapes_jukebox/DLT.html (285 words)

	Integrated Solutions - Network Upgrade Lowers Backup Window (Site not responding. Last check: 2007-11-03)
		A network upgrade to gigabit Ethernet and SDLT (super digital linear tape) backup reduced a software developer's backup window from five days to less than one.
		The previous format required lots of tapes, increasing the media cost involved, the labor time involved to switch tapes, and the time spent to manage the system.
		ALGOR replaced its existing tape libraries that used DLT (digital linear tape) 8000 media with a Quantum M1500 tape library incorporating SDLT (super digital linear tape).
	www.integratedsolutionsmag.com /Articles/2003_12/031205.htm (886 words)

	Business Wire: Imation Black Watch Digital Linear Tape IV Now Available Through All Sales Channels in North America
		This expansion comes after the success of strong initial and repeat purchases of Digital Linear Tape IV cartridges by educational institutions, federal government agencies and Fortune 100 companies in the commercial banking, aerospace, networking and telecommunications industries.
		Digital Linear Tape cartridges use half-inch tape in a single reel cartridge with data written to the cartridge in a longitudinal position to give maximum volumetric efficiency.
		Black Watch Digital Linear Tape IV cartridges pass Imation's stringent certification process for meeting customer requirements based on 50 years of successful enterprise-class tape product development.
	www.findarticles.com /p/articles/mi_m0EIN/is_2002_April_9/ai_84587856 (427 words)

	Digital Linear Tape(DLT) , ADR (Site not responding. Last check: 2007-11-03)
		DLT Data Cartridges, Data Cartridges, Computers, Printers & Accessories, IMN11776, IMN 11776, Imation, Imation DLT tape IV is specifically designed for the demands of network and data center operations.
		Digital Linear Tapes are perfect for backing up LAN servers, workstations and mid range systems; hierarchical storage management; DVD mastering.
		DLT Data Cartridges, Data Cartridges, Computers, Printers & Accessories, MAX183710, MAX 183710, Maxell Corp. Of America, Maxell's Super DLT tape yields a large storage capacity coupled with an incredible data transfer speed, and features Maxell's patented Ceramic Coating process.
	www.netbankstore.com /store/Digital_Linear_TapeDLT_ADR_Magnetic_Media.html (4337 words)

	IBM LTO Linear Tape-Open: Overview - IBM System Storage (Site not responding. Last check: 2007-11-03)
		The IBM TotalStorage 3580 model L33 Tape Drive is an external drive incorporating the 3rd and latest generation of IBM LTO technology.
		For small businesses that need the ability to quickly and reliably access data that is critical to their success, the IBM 3580 Express is a complete package for networked servers or individual workstations, archiving and retrieving data in a dependable and consistent manner.
		The IBM TotalStorage 3581 Tape Autoloader Express Models are built based on customer and business partner feedback with the options, features, and functions that mid-market companies seek to address the needs of their business.
	www-03.ibm.com /servers/storage/tape/lto (999 words)

	The Emerging Tape Backup Market \| Page 2 \| July 24, 2000 (Site not responding. Last check: 2007-11-03)
		Benchmark Tape Systems' DLT1 drive may be the most promising entry in the departmental space.
		Those who want to swap out older DLT 4000 tape libraries but who have a heap of archive cartridges will be glad that DLT1 is backward compatible with DLT 4000 cartridges.
		Similar to linear write, ADR doesn't require tapes to be removed and rewound around a drum to write tracks.
	www.networkcomputing.com /1114/1114ws32.html?ls=NCJS_1114bt (1175 words)

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