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Topic: Effective data transfer rate

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	Data server for transferring selected blocks of remote file to a distributed computer network involving only single ...
		A pipelined data server having an improved data transfer architecture is used with a distributed computer network and a plurality of secondary storage devices to efficiently transfer data between the network and the secondary storage devices.
		Once the entire block of data is resident in the buffer memory 64, a single transfer across the VME bus 52 is setup to transfer the data from the device processor 60 to the communication processor 54, and from there onto the network 12.
		The memory 82 is 16 Mbytes of DRAM having a peak data transfer rate of 100 Mbytes/sec.
	www.freepatentsonline.com /5394526.html (4039 words)

	Effective data transfer rate - Wikipedia, the free encyclopedia
		In telecommunication, effective data transfer rate is the average number of units of data, such as bits, characters, blocks, or frames, transferred per unit time from a source and accepted as valid by a sink.
		Note: The effective data transfer rate is usually expressed in bits, characters, blocks, or frames per second.
		The effective data transfer rate may be averaged over a period of seconds, minutes, or hours.
	en.wikipedia.org /wiki/Effective_data_transfer_rate (117 words)

	ServerNet nterconnect tech (Site not responding. Last check: 2007-10-12)
		A sustained transfer rate of 250 megabytes per second is shown in this section of a parallel processor.
		Data paths from system elements are connected within the system area network by six-port routers, which are single VLSI devices that use switching technology to direct requests to the correct data path.
		Data integrity is maintained with multiple techniques: command link integrity isolates single-bit errors; cyclic redundancy checks maintain the integrity of both data and the control of transfers crossing the interconnect fabric; and hardware protocol acknowledgments ensure that end-to-end reliable data transfer has occurred.
	www.himalaya.compaq.com /object/SNETHSPD.html (2029 words)

	Data Management Strategies
		Data may be in a mass storage system, not necessarily in close geographic proximity to the compute nodes.
		Data may need to be duplicated across multiple nodes or gathered from may nodes to be stored sequentially at the end of the run.
		Data transfers to and from HSM can be accomplished using ftp or rcp from any machine on the network.
	www.pdc.kth.se:81 /training/Talks/Data.Mgt/more.html (5227 words)

	The Storm Before the COM (Site not responding. Last check: 2007-10-12)
		In those days, modems transferred data at 2400 baud (bits per second).
		The phone system itself has an internal speed limit of 64000 bits per second, and because data is converted into sound and then back into data without synchronizing your computer to the phone company, the best that is available in data transfer is half that speed.
		With ISDN, computers can transfer data at the full internal phone company speed of 64000 bits per second on each phone line, and higher effective data rates can be achieved by using two or more phone lines in parallel.
	www.yale.edu /pclt/COMISDN/DEFAULT.HTM (662 words)

	Data Tech Computer Services, Inc. - Detail (Site not responding. Last check: 2007-10-12)
		The 7208 Model 012 features data compression hardware using an adaptation of IBM's IDRC algorithm which provides an effective capacity of up to 10 GB typical per cartridge and an effective data transfer rate of 1 MB per second typical, depending on the type of data transferred.
		The 7208 model 222 features data compression hardware using an adaptation of IBM's IDRC algorithm which provides an effective capacity of up to 14GB of data per cartridge and an increased effective data rate of 1MB per second depending on the type of data being transferred.
		Native capacities are up to 7 GB of data per cartridge and a data transfer rate of up to 500 KB/second per port.
	datatechcomputer.com /detail.aspx?ID=61 (1343 words)

	Honeywell SERIES 6000/600 DSS270 DISK STORAGE SUBSYSTEM
		Data is grouped in a total of 40,000 continuously addressable sectors of 384 characters each per disk pack drive.
		With this option, independent and simultaneous data transfer and command communication is allowed between the controller and one or two processors, with the restriction that data transfer simultaneity cannot occur within the same file electronics unit.
		The option can be used with one processor to increase the effective data transfer rate or used to allow two separate processors to access the same data base.
	home.the-wire.com /~mwilson/his/DSS270.html (512 words)

	PACTOR II
		Prior to their transmission, certain of the symbols of the rate 1/2 encoded stream are punctured or deleted and not transmitted.
		This data rate is lowered by the redundancy required in the coding to reduce the error rate, so that the effective throughput becomes 100 bit/s with rate 1/2 coding.
		This is followed by 8-DPSK modulation at a data rate of 600 bit/s with rate 2/3 coding, for a throughput of 400 bit/s.
	www.arrl.org /FandES/field/regulations/techchar/PACTOR-II.html (1635 words)

	[No title]
		Although the microprocessor may be capable of delivering data faster than the bus can “absorb” the data, performance will be limited by the bus data rate (“bandwidth”).
		Because the bus is 16 bits wide, the data transfer rate must be two (2) bytes per bus cycle.
		Knowing the rate at which the CPU is fetching instructions and the rate at which the DMA is referencing bytes, what is the rate at which the two events collide.
	www.cs.binghamton.edu /~guydosh/cs350/hw1f03-tips-log.doc (937 words)

	Warp Nine Engineering - The IEEE 1284 Experts - IEEE 1284 Introduction
		Each mode provides a method of transferring data in either the forward direction (PC to peripheral), reverse direction (peripheral to PC) or bi-directional data transfer (half duplex).
		This is very software intensive and limits the effective data transfer rate to 50 to 100 Kbytes per second.
		For example, in EPP mode, a byte of data can be transferred to the peripheral by a simple OUT instruction.
	www.fapo.com /1284int.htm (422 words)

	[No title]
		The strategy is to stripe the data partitions destined to store the large fact table on the external drives, and put the temp and data dictionaries on the faster internal raid array.
		Generally the first strategy is the strategy of the incremental data warehouse type, the second is the strategy of the swap and non-time sequenced data warehouse type.
		Transformation routines Traditionally with ETL jobs, the most effective methodology was to export the material by sqlloader to a flatfile, transform it with either “C” code or some text editor such as emacs, and load the data using sqlloader.
	download-west.oracle.com /openworld/upload/W9617.doc (3108 words)

	Plexus Computers PC Guide - Bus
		Of the 17 signaling lines, 8 are used for data, 4 for control and 5 for status.
		Since only one transmit or receive line is used, the maximum data transfer rate is not as high as parallel data transmission.
		Data is sent bit after bit, along the same line, causing timing and framing of bytes to be important so that the end of each bit and each byte can be determined accurately.
	www.plexuscomputers.com /pcguide/glossary/io.htm (970 words)

	[No title]
		An application that is currently transferring data wishes to be notified when the effective data rate of the transfer drops below a certain threshold.
		Notice that for the first scenario, non-application data must be used to measure the data rate, because the user wants the effective data rate in order to begin a transfer.
		Because we logically have to transfer some data in order to calculate a data rate greater than 0, we have two choices: transfer non-application data or transfer application data.
	www.intel.com /cd/ids/developer/asmo-na/eng/279769.htm (611 words)

	Lowest pricing on: IBM DLT DRIVE, IBM LTO DRIVE, LTO ULTRIUM 3580, 7205 MODEL 440 DLT, MAGSTAR 3590 MAGSTAR MP 3570, ...
		The IBM 3570 Model B00 is a drive unit with 1 tape drive, 1 cartridge, a tape drive data rate of 2.2 MB/sec, and is a stand-alone unit.
		The IBM 3570 Model B01 is a library subsystem with 1 tape drive, 20 cartridges, a tape drive data rate of 2.2 MB/sec, and is a stand-alone unit.
		The IBM 3570 Model B02 is a library subsystem with 2 tape drives, 20 cartridges, a tape drive data rate of 2.2 MB/sec, and is a stand-alone unit.
	www.9to5computer.com /Ibm/IBM-TAPE-DRIVES.htm (5991 words)

	WANs, MANs, and the Internet - Texas State Library
		However, when leasing data circuits or phone lines, attenuation is not a problem because the local telephone company is responsible for the quality of the signal, regenerating it when necessary.
		When equalizing transmit/receive data rates, it is common to achieve bandwidth in excess of 600Kbps.
		Any data broadcast over one of the networks might be destined for a computer on its local network or the remote network.
	www.tsl.state.tx.us /ld/pubs/wireless/chapter7.html (4577 words)

	Optimize System Throughput for High-Speed Data Acquisition
		Regardless of the transfer rate, the ADC can always acquire data at its maximum rate up to the size of the buffer.
		After the DA device transfers data to the computer, the computer takes the digital readings and stores them to a hard disk.
		Because the CPU can do only one thing at a time, the transfer of data from the ADC and the speed of writing to the hard disk should exceed the acquisition rate by at least a factor of two.
	www.iotech.com /senda96.html (1444 words)

	Data Management SAN for Oil and Gas
		San Diego Supercomputer Center recently achieved a data transfer rate of 828 megabytes per second to tapes by leveraging its SAN solution based on Sun's HPC SAN architecture.
		Data management is a crucial issue for oil and gas companies.
		The amount of data that is being stored and the duration it is kept online are growing rapidly, but the resources to manage it are not.
	www.sun.com /solutions/documents/solution-sheets/en_datamngsan_ff.xml (1574 words)

	INFS6210 Study Guide (Site not responding. Last check: 2007-10-12)
		Predominance of digital signaling and data representation in current computer technology: most cost-efficient trade-off in signal/processing capacity, accuracy, reliability, and cost; maximal protection against data transmission errors; relative ease of designing and fabricating two-state electric devices, binary values correspond to values in Boolean logic.
		Data structures: pointers and addresses, arrays and lists (role of contiguous storage), linked list (singly, doubly), records, files, associative (global) arrays (in M, using hierarchical structures as an alternative to the file/record approach as the basis for the application programming interface), indexes.
		Data transmission concepts: digital, analog, communication channel (sender/medium/receiver), effective data transfer rate, bandwidth, modem, attenuation, simplex/half-duplex/duplex, serial/parallel, channel sharing (multiplexing and switching), clock synchronization, asynchronous vs. synchronous, error detection and parity, LRC, CRC.
	home.earthlink.net /~inforef/i6210sg.htm (1746 words)

	Migrant Student Records Exchange Initiative - ED/OESE/OME (Site not responding. Last check: 2007-10-12)
		A set of data elements that each State receiving funds under Title I, Part C, shall be required to collect for the purposes of electronic transfer of migratory student information and the requirements that States shall meet for immediate access to such information.
		OME conducted a study that concluded the three options for connectivity were a web-enabled transfer system, a consolidated database, or a centralized database.
		Develop effective methods for the electronic transfer of student records and determine the number of migratory children in each State.
	www.ed.gov /admins/lead/account/recordstransfer.html (1050 words)

	Which DDR RAM to buy? - PC2100 or PC2700 DDR RAM, 266mhz PC2100 or 333mhz PC2700 DDR Memory?
		Even though the processor has a maximum speed (frequency) of 1.3GHz (1300MHz), the effective data transfer rate of the processor is limited to the speed (frequency) of the motherboard's FSB, which in this case, doubled by DDR technology, is only 200MHz.
		But with DDR RAM installed, the processor's effective data transfer speed would be responsible for creating the bottleneck.
		The ECS motherboard supports PC2700 DDR RAM, so if that is installed with the new processor, the effective data transfer rate would be increased from 200MHz to 266MHz, and the bottleneck between the RAM and processor would be reduced from 133Mhz to 66MHz.
	www.ddrsdrammemory.com /which_ddr_ram.html (676 words)

	[No title]
		The effective data rate refers to the speed at which real data is being transferred to a remote IP Endpoint.
		Finally, as is the case with road traffic, it would be nice to know the effective data rate before we start transferring data.
		Should the data rate be too slow for an effective transfer, we can abort the process; if our distributed application has the ability to resume the transfer, we have at least made forward progress while determining our data rate.
	www.intel.com /cd/ids/developer/asmo-na/eng/279767.htm (696 words)

	Midrange Systems Integration 7205
		The IBM 7205 model 311 is ideal for demanding data backup, restore, and archive applications in an RS/6000 environment.
		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.
		The IBM 7205 Model 311 features a native transfer rate of up to 5MB/sec, with a native cartridge capacity of 35 GB.
	www.midrangesys.com /products/storage/7205.htm (323 words)

	Computer and Hardware Manufacturer Listings
		Modems accept digital data supplied by the local PC, and convert it to a modulated analog wave form that can be transmitted over the phone line and conversely accept a modulated analog wave from the telephone line, convert it to a digital form, and pass it on to the local PC.
		However, your effective data transfer rate might be much lower than this because of resent data packets you have already received can count for as much as 50% of all the data packets you're receiving!
		For instance a 28,800 modem maximum transfer rate is roughly 3.5kcps, a 33,600 modem can go as high as about 4.1kcps while a 56k modem could theoretically reach about 6kcps.
	active-hardware.com /english/optimise/modems.htm (3849 words)

	What is EPP/ECP? - a definition from Whatis.com
		The first three methods offer an effective data transfer rate of 50 to 100 kilobytes per second.
		EPP and ECP offer the possibility of rates "in excess of 1 megabyte per second," according to Warp Nine, a chip manufacturer.
		Nevertheless, even users of the compatibility modes of Standard 1284 are also expected to see some benefit in data transfer to and from peripherals.
	searchsmb.techtarget.com /sDefinition/0,,sid44_gci212069,00.html (420 words)

	AMD HyperTransport Bus: Transport Your Application to Hyper Performance
		Although the HyperTransport bus may require more cycles to move a given amount of data, the pure speed of the HyperTransport connection ensures a far higher effective data transfer rate—6.4GB/s versus 1GB/s—leaving poor old PCI-X bus in the dust.
		This connection, commonly called the "front-side bus," is the transport mechanism for all data traveling between the processor and main memory, graphics card, and all types of I/O devices.
		The front-side bus transfer rate on prior generation AMD processors is on the order of 2.1GB/s—fast, but still capable of being saturated by the demands of a server configured with multi-processors, high-speed network cards, and fast storage devices.
	www.devx.com /amd/Article/17437 (955 words)

	My MTM Technologies - Detail
		This new Double Data Rate (DDR) 266 technology allows for the smooth transition and investment protection between the older architecture's speed ranges and the ever enlarging memory capacities of the new DDR realm.
		This technology transition more than doubles the memory transfer rate for the older PC133MHz bus rate and yields an effective data-transfer rate of up to 2,128MBps.
		This increased transfer speed enables a new generation of higher performance, lower cost server platforms that will offer expanded communications, database, online and networking solutions.
	my.mtm.com /detail.aspx?ID=364395 (132 words)

	Tape Drive provides up to 35 Mbsec data transfer rate., IBM Corporate Headquarters
		Performance — Tape drive data transfer rate is designed to more than double, up to 35 MB/sec native data transfer rate (70 MB/sec with 2:1 compression).
		IBM Ultrium 2 Tape Drives are designed to read and write original LTO Ultrium Data Cartridges at original Ultrium 1 capacities and with improved performance, up to 20 MB/sec native data transfer rate (40 MB/sec with 2:1 compression).
		Also, although the compression technology used in the tape drive can typically double the amount of data that can be stored on the media, the actual degree of compression achieved is highly sensitive to the characteristics of the data being compressed.
	news.thomasnet.com /fullstory/26189/388 (1481 words)

	NOVELL: Partner Product: IBM System x3550 Model 7978
		High-performance server subsystems: These servers are high-throughput, network servers with excellent scalability when you add memory and a second processor.
		They incorporate powerful 667 or 1067 MHz Intel Xeon processors with 4 MB advanced transfer L2 cache.
		Data transfer across the system bus is at a 4X rate (four data transfers per clock) for an effective data transfer rate up to 1067 MHz.
	www.novell.com /partnerguide/product/204132.html (254 words)

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