วันศุกร์ที่ 19 กันยายน พ.ศ. 2551

ATA vs SATA

Hard Drives: ATA SAT vs performance computer systems have risen faster than processors, memory and video cards that will be developed continuously. The most important component that is often overlooked when you want to improve the performance of a computer's hard disk system. The hard drive manufacturers have continued to change the basic hard drive that is used in modern computer systems over the past 25 years, and in recent years have seen exciting events of the axis speeds faster, largest caches, reliability and greater speed data transmission. The type of device used in most computers of consumers is the sincere unity ATA (often referred to as an IDE). The standard ATA dates back to 1986 and basa in 16-bit parallel interface has undergone numerous changes since its introduction in order to increase the speed and size devices that can support. The last rule is ATA-7 (first introduced in 2001 by the Technical Committee T13 (the group responsible for the standard ATA)), which supports transfer rates of up to 133MB/sec. This should be the last update to the standard parallel ATA. Already in 2000, was the standard parallel ATA was the maximum limits to what they could do. With speeds of data transfer 133MB/sec hit the mark in a parallel cable, it invites all kinds of problems, because the signal timing, EMI (electromagnetic interference), and other issues of data integrity , So that industry leaders met and developed a new standard known as Serial ATA (SAT). SAT has been around a few years, but is intended to become the norm because of several advantages that will be discussed in this Tech Tip. Both technologies will be studied: ATA (Advanced Technology Attachment)? 16-bit parallel interface uses the computer for aircraft control. Innført in 1986, has undergone many changes over the past 18 years, with the latest version is called ATA-7. When an item is referred to as a device ATA, is a common Parallel ATA. ATA devices are also commonly called IDE, Eid, Ultra ATA, Ultra-DMA, ATAPI, ducks, etc. (each of these acronyms are really focus on specific topics, but are generally traded) SAT (Serial Advanced Technology Attachment)? 1-bit series of development of the parallel ATA interface of storage space physics. Basic and seated connections, easy-to-separated with their cousins ATA various data and power connections at the rear of the aircraft. A side-by-side comparison of two interfaces can be seen in this PDF Maxtor, and subsequent cover a large number of differences? The standard ATA, that 200 GB Western Digital model, have something big, two inches wide with a 40-pin data cable and receive connections 5V needs to feed the family 4-pin. The basic data cables for these devices has sought the same for years. This change was made with the introduction of the ATA-5 at a higher level to improve the quality of the signal through a cable 80 son used in 40-pin (they are often called 40-pin/80-wire son). To improve air circulation in any computer system manufacturers use literally take place on the tape recording and cable in the position. Another physical change also came with the advent of cable rounding. The results are rounded cables is the same flat, but many prefer the improved system that provides air flow, ease of cable, refrigerators and appearance that comes with them. Sato, who is 120 GB Western Digital model, a half-inch wide, 7 blade and width of data, which translates into a much thinner and easier to manage data cable. These cables take the cables ATA practice rounded to the next level, because they are even closer, more flexible and able to stay longer without fear of data loss. Sato cables have a maximum length of 1 meter (39.37 inches), which is much higher than the recommended 18 inches for ATA cable. Reducing the footprint of the SAT connections are released into the motherboard space, potentially allowing more convenient for the design and room for more items aboard! A 15-pin connection Power 250mV surrender power necessary for the SAT. 15-pin set sounds like a device that will require a much larger force than a 4-pin cable ATA device, but in reality the two power contacts have been approximately the same height. Today, many units were Sato also comes with a plus 4-pin power connector for practical reasons. Many modern motherboard, because this Chaintech motherboard, hard drives are supplied with SAT connections on board (including, for many contacts ATA and in the development of the legacy compatibility), and new sources of food, that the Ultra X - Connect, a few generally the 15-pin power connections, which makes it easy to use new systems. Older systems can be easily upgraded to support the devices put to use maps, for example, the PCI free, and the driver made a 4-pin, 15-pin package adapter. The scanners are becoming more easily accessible relations with Sato. The units, which Plextor PX-712SA take advantage of the new interface, even if the results will not be higher than a comparable optical drive with a connection for me. Yield In addition to being easier to install and consume less energy, have actually provides benefits that distinguish them from the ATA. The most interesting of the SAT performance is the maximum width of the banda possible. As we have noted, the development of SATA drives have seen the rate of data transfer will reach its maximum 133 MB / second, while the current standard SAT will provide data transfers up to 150 MB / sec. Increasing the overall performance of the ATA SAT, the time May expect that up to 5% (according to Seagate), but improvements in technology will undoubtedly improve overall in this direction. The future of the SAT has great things for those who want still more speed, as devices to 300 MB / sec transfer rate (SAT II) will be readily available in 2005 and 2008 speeds of up to 600 MB / second can be expected. These speeds are incredible, and it is difficult to imagine that moment. Another advantage of the performance is in devices SAT is a built-in hot-swap capabilities. Units SAT can be brought on-and off-line without disabling the system, which gives a great advantage for those who can not afford downtime, or you want to move within and outside the operation quickly. The largest number of son in the balance of power is partly explained by this, six of the eight son are dedicated to enable the hot-swap functionality. Comparing prices for the SAT ATA devices can be complicated considering all the variables, but is generally the case hoped that the devices continue to be only a little over a comparable unit ATA. The gap is closing rapidly, and that the systems gain popularity and availability of a price change can be expected. Consider the benefits of ATA Sato, the potential difference of a few dollars can easily be justified when considering the upgrade. That currently has a limited number of devices SAT, but several techniques, such as The Tech Zone and The Tech Lounge, offers real-time price guides to see how the devices comparable battery. The last word current standard set for ATA offers significant advantages in terms of ease of use, energy consumption and, most importantly, performance. The most important ATA has thought about this moment in history, which has been the norm for so long as it can not disappear in the near future. Sato's future will be even more interesting than the speed increase will help promote the development to keep pace with other major components of the system. Jason Kohrs http://www.geeks.com Computer Geeks http://www.geeks.com/pix/techtips.htm technology tips and advice http://www.geeks.com/pix/techtips.htm computer

ไม่มีความคิดเห็น: