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Topic: Serial ATA

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Peter Dunne

	About Serial ATA : FUJITSU New Zealand
		Serial ATA is an evolutionary interface for the high-speed transfer of data in PCs, workstations, and laptops.
		Serial ATA is faster and more versatile than Parallel ATA with higher transfer rates and a smaller connector with a one-metre cable.
		Serial ATA also has a roadmap to 3Gb/s (300MB/s) and 6Gb/s (600 MB/sec), which is beyond the capabilities of Parallel ATA without increasing the cost of cabling, connectors, and silicon.
	www.fujitsu.com /nz/support/hdd/faqs/Serial-ATA.html (772 words)

	Serial ATA
		Parallel ATA is an extension of the original parallel ATA interface introduced in the mid 1980’s and maintains backward compatibility with all previous versions of this technology.
		Serial ATA is the proactive evolution of the ATA interface from a parallel bus to a serial bus architecture.
		Serial ATA will be introduced at 150Mbytes/sec, with a roadmap already planned to 600Mbytes/sec, supporting up to 10 years of storage evolution based on historical trends.
	www.serialata.org /satatechnology.asp (224 words)

	Serial ATA Bus Description [SATA], SATA Pinout, SATA Signal Names
		Serial ATA also provides the opportunity for devices to be 'hot-plugged', devices may be inserted or removed while the system is powered on.
		Serial ATA uses 250mV switching levels instead of 5 volt TTL levels [reducing power requirements], a smaller cable [increasing air flow in the chassis], operates at 150MBps instead of 133MBps, and is Hot-Swappable.
		Serial ATA is not compatible with the IDE [Parallel ATA] because the connectors are different, the voltage levels are different, and SATA sends a bit at a time while PATA sends 16 bits at once.
	www.interfacebus.com /Design_Connector_Serial_ATA.html (1365 words)

	Serial ATA (Site not responding. Last check: 2007-10-20)
		However, while ATA has enjoyed an illustrious track record, the specification is now showing its age and imposes some serious design issues on today’s developers, including a 5-volt signaling requirement, high pin count, and serious cabling headaches.
		The Serial ATA specification is designed to overcome these design limitations while enabling the storage interface to scale with the growing media rate demands of PC platforms.
		Serial ATA is to replace parallel ATA with the compatibility with existing operating systems and drivers, adding performance headroom for years to come.
	global.aopen.com.tw /tech/techinside/SerialATA.htm (182 words)

	Seagate Technology: Technology Papers: Serial ATA - New Disc Drive Interface (Site not responding. Last check: 2007-10-20)
		Serial ATA is designed to overcome the limitations of parallel ATA while providing scalability for years to come.
		Serial ATA wraps many bits of data into a packet and then at a higher speed (30 times faster) than parallel, transfers the packet of data down the wire to or from the host.
		Serial ATA cables are thinner and longer for improved system airflow and innovative system designs such as small form factor and consumer electronics boxes.
	www.seagate.com /newsinfo/newsroom/papers/D2c24.html (780 words)

	TechWatch.com.au - Your source for Technology News, Reviews and Pricing. (Site not responding. Last check: 2007-10-20)
		Serial ATA will also have a greater error correction capability, with the largest difference being that the instructions (not just the data itself) will now be checked for errors.
		Serial ATA will bring the benefits of greater data integrity, increased speed and some of the extra commands should be very beneficial to RAID setups.
		Serial ATA is here now for the next 10 or so years, and I'll certainly be glad to finally rid my system of IDE cables.
	www.techwatch.com.au /articles/serial_ata (1108 words)

	Serial ATA, and the HighPoint RocketRAID 1520
		The Serial ATA Working Group insist that the one-drive-per-cable limitation is a feature, not a bug, because it "avoids master/slave, 'daisy-chaining', and termination issues".
		But the Serial ATA Working Group for some reason say that the one-drive-per-cable limit is one of the "compelling reasons why Serial ATA is a viable option for server and NAS networked storage", which doesn't make a whole lot of sense.
		Consumer ATA drives aren't expected to last for five years of continuous operation, because their duty cycle (ratio of on-time to off-time) is likely to be low enough that that sort of durability would be wasted; they're not likely to be on for that long before they're replaced by something newer.
	www.dansdata.com /rr1520.htm (3340 words)

	Serial ATA in the Microsoft Operating System Environment
		Serial ATA is a new interconnect that brings consumer storage up to par with some of the latest data transfer technologies.
		Serial ATA II is a set of optional extensions and features for Serial ATA that are available to Serial ATA controllers and devices that operate in Native Serial ATA mode.
		Serial ATA must overcome two challenges before external Serial ATA connectors become external connectors; first, there is competition with other external buses, and second is the resiliency of the Serial ATA cables and connectors.
	www.microsoft.com /whdc/device/storage/serialATA_FAQ.mspx (4293 words)

	IDE Hard Drives, Serial ATA And Ultra ATA Hard Drives
		Serial ATA or SATA hard drives, the evolutionary replacement to Parallel ATA hard drives, have a serial interface.
		Serial ATA hard drives use a small 7-pin data cable and are available up to 300 MB/sec.
		The addition of NCQ to Serial ATA hard drives is one of the most significant improvements to the ATA family of hard drives since Serial ATA was introduced and a tremendous step in moving ATA technology from entry-level to enterprise.
	www.harddisk.com /harddrive/ide_harddrive.html (386 words)

	Serial ATA Quick Tutorial from Addonics
		Serial ATA is a new interface technology defined by Intel Corporation and backed by all major PC manufacturers, Hard disk manufacturers, Addonics Technologies and many leading companies in the computer industry.
		The second generation of Serial ATA that doubles the data throughput to 3 Gbits/sec was introduced in 2nd half of 2004.
		Serial ATA also improves the system air flow by utilizing a new thin cabling system to simplify the connection between the host controller and the data storage devices.
	www.addonics.com /emerging_technologies/sata_tutorial.asp (880 words)

	Serial ATA
		Serial ATA is still in development at the time that I write this page, but indications are that it will support maximum throughput of somewhere between 150 and 300 MB/s.
		Since Serial ATA is a point-to-point serial protocol, each device communicates directly with the host system over a flexible, thin cable that can be made a reasonable length.
		Proponents of serial hard disk interfaces have been saying "the end is nigh" regarding parallel interfaces for many years; I remember hearing about the "end of the road" when parallel IDE/ATA was at 16.6 MB/s, and parallel SCSI was at 40 MB/s, but these interfaces continue to get faster and faster.
	www.pcguide.com /ref/hdd/if/sfSATA-c.html (647 words)

	Intel® Desktop Boards - Serial ATA
		Serial ATA is the evolutionary replacement for the Parallel ATA physical storage interface, used to connect storage devices such as hard disks, DVD, and CD-RW drives to the PC motherboard.
		The benefits of Serial ATA are numerous, beginning with an improved cable size and connector plant, improving the ease of use and manufacturability.
		Serial ATA -- the Long-term Solution for Storage Connectivity, March 2001.
	developer.intel.com /design/motherbd/sata.htm (146 words)

	Serial ATA
		The parallel ATA specification has defined the standard storage interface for PCs since the protocol was introduced in the 1980s.
		Officially formed in July 2004 by incorporating the previous Serial ATA Working Group, the Serial ATA International Organization (SATA-IO) provides the industry with guidance and support for 15 year old technology with a high speed serial bus supporting up to 10 years of future expansion.
		Known as Serial ATA, the new serial interface is designed to overcome the limitations of parallel ATA in addition to providing further enhancements to the storage subsystem in today's platforms.
	www.intel.com /technology/serialata/index.htm (327 words)

	The advantages of serial ATA over parallel ATA
		Serial ATA specifies a thin, point-to-point connection that allows for easy cable routing within a system and increased cable length from 18 inches for the current 40-pin flat ribbon parallel cable to the 1-meter, very thin and flexible serial cable.
		Add to that Serial ATA's dedicated 150 MB/sec maximum performance per device, and it can be seen that the bus already has room to spare when today's best-of-breed drives are hard pressed to deliver 100 MB/second.
		By contrast, serial ATA is a point-to-point interface where each device is directly connected to the host via a dedicated link.
	searchstorage.techtarget.com /tip/1,289483,sid5_gci934874,00.html (794 words)

	Can disk drives keep up with faster PCs? \| CNET News.com
		Serial ATA, a new data communication standard for fast-talking drives, received a considerable boost this week when the group promoting the technology posted its latest standard.
		The Serial ATA Working Group published the 1.0 draft of its specification, which will effectively double the bandwidth, or capacity for data, between disk drives--ranging from hard drives to CD-rewritable drives--and other PC components.
		Serial ATA 1.0 is intended primarily to make sure that disk drives can spit up enough data to keep PCs with 1.4-GHz or faster processors happy.
	news.com.com /2009-1040-250134.html?legacy=cnet (687 words)

	Serial ATA - EnterpriseNetworkingPlanet - News, trends and advice for network managers
		Serial ATA is a serial link -- a single cable with a minimum of four wires creates a point-to-point connection between devices.
		One of the main design advantages of Serial ATA is that the thinner serial cables facilitate more efficient airflow inside a form factor and also allow for smaller chassis designs.
		In contrast, IDE cables used in parallel ATA systems are bulkier than Serial ATA cables and can only extend to 40cm long, while Serial ATA cables can extend up to one meter.
	networking.webopedia.com /TERM/S/Serial_ATA.html (215 words)

	PC World - Seagate Shows Speedy Serial ATA Hard Drive
		The Serial ATA Working Group has said it expects chip set and motherboard manufacturers to begin implementing Serial ATA support by 2003, according to Paulsen.
		Serial ATA technology promises to improve the speed at which a hard drive can transmit data.
		The Serial ATA cable--which carries both data and power to the drive--requires lower voltage to transmit signals, meaning it can transfer data from smaller and lower-powered PC components.
	www.pcworld.com /news/article/0,aid,102252,tk,dn062502X,00.asp (836 words)

	Parallel ATA vs. Serial ATA hard drives
		Parallel ATA (PATA) has been the industry standard for connecting hard drives and other devices in computers for well over a decade.
		However, due to a few major limitations, PATA could be a quickly dying breed with the introduction of Serial ATA (SATA).
		The Parallel ATA interface is one of the few aspects of a computer system that has remained unchanged for many years.
	www.escotal.com /PATA.html (573 words)

	TechExams.Net - A+ TechNote: ATA/IDE/EIDE/SATA
		Intel and a group of other companies have developed a serial version as an alternative to the parallel ATA interface and was published as Serial ATA (SATA).
		The Serial ATA final 1.0a specification was released on Feb 4, 2003.
		Serial ATA has a thinner cable and a smaller connection that is keyed so they cannot be connected incorrectly, unlike some parallel ATA cables.
	www.techexams.net /technotes/apluscore/ide.shtml (1865 words)

	SATA analyzer, SATA protocol analyzers, Serial ATA analyzers, SATA analyser, Serial ATA protocol analyzers, SATA ...
		By contrast, Serial ATA defines a roadmap starting at 1.5 gigabits per second (equivalent to a data rate of 150 MB/s) and migrating to 3.0 gigabits per second (300 MB/s).
		Serial ATA uses only 4 signal pins, improving the pin efficiency and accommodating a highly integrated chip implementation.
		This means Serial ATA requires no changes to existing software and operating systems in order to function, and it provides backward compatibility with existing operating environments.
	www.lecroy.com /tm/Solutions/Protocol/sata.asp?menuid=29 (786 words)

	ATA-ATAPI.COM -- Serial ATA (SATA)
		The Serial ATA (or SATA) products that are now shipping and available in your local computer store may not be the most reliable products.
		Serial ATA or SATA may be the best thing to happen in the I/O interface world in a long time.
		ATA commands, status and data are transmitted in packets on this interface.
	www.ata-atapi.com /sata.htm (1492 words)

	Everything You Need to Know About Serial ATA \| Hardware Secrets
		Serial ATA II provides new features such as Native Command Queuing (NCQ), plus a higher speed rate of 300 MB/s.
		Serial ATA cable consists in two pair of wires (one for transmission and the other for reception) using differential transmission (click here to learn how differential transmission works).
		Serial ATA ports use a seven-pin connector and seven-wire cable.
	www.hardwaresecrets.com /article/27 (972 words)

	Back To The Future: Serial ATA Arrives At Last \| Tom's Hardware
		Serial ATA follows in the footsteps of other successful standards that are also based on the principle of serial data transfer.
		Serial ATA had to meet a number of objectives.
		Another key requirement for the developers was backwards compatability; serial ATA had to be completely software compatible with parallel ATA.
	www.tomshardware.com /2002/08/12/back_to_the_future/index.html (712 words)

	LostCircuits, Tech Advice Guide
		Serial ATA and the 7 Deadly Sins Of Parallel ATA
		Parallel interfaces, in particular, the advanced technology attachment (ATA) standard have evolved since the mid 1980s from transfer rates of 3.3 MB/sec in ATA-1 to currently 100 MB/sec in ATA PI-6, also known as Ultra ATA 100.
		Within the next few weeks, Serial ATA will be introduced to the mainstream PC at an original peak transfer rate of 150 MB/sec and a roadmap leading to up to 600 MB/sec throughput in 2007.
	www.lostcircuits.com /advice/sata150 (656 words)

	About Serial ATA : FUJITSU Australia
		Fujitsu is the first company to offer Serial ATA on a 2.5in hard drive.
		Fujitsu Serial ATA products will be available in mid-2003.
		Is a Serial ATA drive simple to install/integrate into a storage subsystem?
	www.fujitsu.com /au/support/hdd/faqs/Serial-ATA.html (772 words)

	Hard drive makers soft pedal S-ATA cycle (Site not responding. Last check: 2007-10-20)
		And it's partly due to a series of stumbles and missteps with price wars compounding the problem for the hard drive makers.
		Son of S-ATA is going to be much better, apparently, and the main reason for the change to Serial ATA is that data rates on ribbon cable parallel interfaces are just about at their limit.
		The Lovely Son of S-ATA, Serial ATA II, can double data rates to 300MB/s, allow daisy chaining of drives, and drives powered at a lovely cool 3.3 volts.
	www.theinquirer.net /?article=7442 (361 words)

	S-ATA Package - Serial ATA Promises Big Performance
		The first ATA hard drives appeared on the scene in the late 1980's, and have evolved into the latest ATA100 and ATA133 standards.
		Parallel ATA uses source-synchronous (non-interlocked) clocking, which means that the clock signal is actually sent with the data.
		A single Serial ATA (S-ATA) cable consists of a minimum of four wires, with differential pairs for transmitting and receiving data.
	www.extremetech.com /article2/0,3973,813269,00.asp (868 words)

	Serial ATA solutions from Addonics
		The Cipher UDD 9 in 1 is the best solution for accessing data off PCMCIA hard drives and ATA flash disks; it also includes the Addonics 4 in 1 DigiAdapter and CF DigiAdapter, upgrading the Cipher UDD with the ability to read all the most popular types of flash media.
		The new Addonics Mobile Rack for Serial ATA hard drive is a removable hard drive kit that instantly turns any SATA or SATA II hard drive into a hot swap removable hard drive without any special tool or complicated cabling.
		The Addonics IDE-Serial ATA converter is the most cost effective solution for converting standard IDE and ATAPI devices to the new Serial ATA interface standard.
	www.addonics.com /interface_solutions/sata.asp (2086 words)

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