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about SATA (Serial ATA)SATA (Serial ATA) the full name is Serial Advanced Technology Attachment (Serial Advanced Technical Annex, based on industry-standard serial interface hardware drivers), by Intel, IBM, Dell, APT, Maxtor and Seagate to co-drive interface specification. 2001, by Intel, APT, Dell, IBM, Seagate, Maxtor that several major manufacturers of the Serial ATA Commission formally established the Serial ATA 1.0 standard, in the year of IDF Fall Conference, Seagate announced a Serial ATA 1.0 standard , Formally declared the establishment of the SATA (Serial ATA) standard. 2002, while the Serial ATA related equipment have not yet officially listed, but Serial ATA Committee has established the first Serial ATA 2.0 standard. SATA (Serial ATA) will standardize the external hard drive transfer rate theoretical value has been raised to 150 MB / s, PATA standard ATA/100 than 50 per cent higher than ATA/133 also higher than about 13%, while the follow-up with the next version of the development, SATA (Serial ATA) interface The rate can also be extended to 2 X and 4 X (300Mb / s and 600 Mb / s). Its development plans, the future of SATA (Serial ATA) will also enhance the clock frequency to improve the interface transfer rate, so that drives can also overclocking. The full name is Serial Advanced Technology Attachment (Serial Advanced Technical Annex, based on industry-standard serial interface hardware drivers), by Intel, IBM, Dell, APT, Maxtor and Seagate to co-drive interface specification. 2001, by Intel, APT, Dell, IBM, Seagate, Maxtor that several major manufacturers of the Serial ATA Commission formally established the Serial ATA 1.0 standard, in the year of IDF Fall Conference, Seagate announced a Serial ATA 1.0 standard , Formally declared the establishment of the SATA (Serial ATA) standard. 2002, while the Serial ATA related equipment have not yet officially listed, but Serial ATA Committee has established the first Serial ATA 2.0 standard. SATA (Serial ATA) will standardize the external hard drive transfer rate theoretical value has been raised to 150 MB / s, PATA standard ATA/100 than 50 per cent higher than ATA/133 also higher than about 13%, while the follow-up with the next version of the development, SATA (Serial ATA) interface The rate can also be extended to 2 X and 4 X (300Mb / s and 600 Mb / s). Its development plans, the future of SATA (Serial ATA) will also enhance the clock frequency to improve the interface transfer rate, so that drives can also overclocking. SATA (Serial ATA) interface chips need the support of hardware, such as Intel ICH5 (R), VIA VT8237, nVIDIA's MCP RAID and SiS964, if the motherboard South Bridge chip can not directly support it, on the need to select third-party chips, for example, Silicon Image 3112A chip, But this will also produce some of the differences between hardware and drivers also quite complicated. SATA (Serial ATA) advantage: support hot-swappable, transmission speed, the implementation of efficient use of SATA (Serial ATA) I called Serial hard disk drives, is the future trend of PC hard drives. Serial ATA using serial connection, the use of Serial ATA bus embedded clock signal, which had more error-correcting capabilities, compared with its previous biggest difference is able to transmit commands (not just data) to inspect, If it is found that errors will be automatically corrected, largely improved the reliability of data transmissions. Serial interface also is simple in structure, support hot-swappable advantages. Serial hard disk is a completely different from the new Parallel ATA hard drive interface type, as a serial data transmission method is known. Compared to parallel ATA, on a lot of advantages. First of all, Serial ATA to Serial for the transmission of data, one can only send a data. This can reduce the number of SATA (Serial ATA) interface pins so that the fewer the number of cable connections, efficiency will be higher. In fact, Serial ATA only four pins can be done all the work, were used to connect cables connecting the ground wire, send data and receive data, while the structure of such systems can reduce energy consumption and reduce the complexity of the system. Secondly, Serial ATA the starting point higher, greater development potential, Serial ATA 1.0 definition of the data transfer rate of 150 Mb / s, than the fastest parallel ATA (that is, ATA/133) can reach 133 Mb / s maximum data Transfer rate is also high, and the Serial ATA 2.0 data transfer rate of 300 Mb / s, SATA (Serial ATA) will eventually achieve 600 Mb / s maximum data transfer rate. SATA (Serial ATA) physical design, can be said is Fibre Channel (Fibre Channel) as a blueprint, a four-core cable; demand will significantly reduce the voltage to 250 mV (maximum 500 mV), more traditional parallel ATA interface of 5 V, 20 times less! Therefore, manufacturers can be attached to the Serial ATA hard drive on the hard drive High features, such as hot-swappable (Hot Swapping), and so on. More importantly, in the form of connection, in addition to the traditional peer-to-peer (Point-to-Point), form, SATA (Serial ATA) also support the "Star" link, and this can give RAID such advanced applications designed to provide convenience; In actual use, SATA (Serial ATA) host bus adapters (HBA, Host Bus Adapter) just like on the network switches, can be realized in the form of access to each hard drive and a separate communication, that is, each SATA (Serial ATA) drives have a monopoly Transmission channel, so does not exist as parallel ATA as the master / slave control. Serial ATA standard is not only based on the future, but also to retain backward compatibility with a variety of ways, does not exist in the use of compatibility problems. In terms of hardware, Serial ATA standard allows the use of converters to provide the same parallel ATA equipment compatibility, converters can board from the parallel ATA signals into Serial ATA hard drive can use the serial signal, has a number of this Class adapter / adapter market, which to some extent the protection of our original investment, reduce the escalating costs in terms of software, Serial ATA and Parallel ATA maintained software compatibility, which means that manufacturers have the slightest No need to use the Serial ATA drive and rewriting any code and operating systems. In addition, Serial ATA Connection more traditional Parallel ATA (Paralle ATA) connection to a much simpler and easier Shoufang, the chassis of the airflow and heat dissipation have improved significantly. Moreover, SATA (Serial ATA) hard drive and always trapped in the chassis of the parallel ATA different, highly scalable, can be an external, external rack (JBOD) not only provide better cooling and plug function, but Can also connect to prevent multiple single points of failure; SATA (Serial ATA) and Fibre Channel as the design of the same, so transmission speed of different channels available to do that this in servers and network storage is of great significance. Serial ATA compared to parallel ATA is a lot of advantages, will become a parallel ATA cheap alternative. And the transition from Parallel ATA to Serial ATA is also the trend of the times, it should be only a matter of time. Related companies are also vigorously promote the SATA (Serial ATA) interface, such as Intel's ICH6 series South Bridge chip in comparison to ICH5 series South Bridge chips, supported by the SATA (Serial ATA) interface from two to four, and the parallel ATA interface from the two decreased to 1 Months; nVidia nForce4 series of chipsets already support SATA (Serial ATA) II that the Serial ATA 2.0, and Samsung have used Marvell 88i6525 SOC chip develop a new generation of SATA (Serial ATA) II interface hard drive, and will launch in early 2005. 2007 developed a SATA (Serial ATA)2 and SATA (Serial ATA)2.5 standards, the rate of 3000 MB / s. | ||
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