Home - SCSI Hard Drive
Among the most important parts of a computer, system is the hard drive storage. Hard drives come with various standards such as Advances Technology Attachment (ATA), Serial Advanced Technology Attachment (SATA), and Small Computer System Interface. The nature of the application and computing ability determines the interface to be used. The Small Computer System Interface standard has popular application in systems that are more complicated. This interface is for high-end computing in super computers, networks and servers. The scsi hard drive is with great reliability, performance, interface and flexibility. They are such that they can remain functional round the clock. Therefore, they are suitable for environments such as servers and workstations. These hard drives are suitable for transporting huge amount of data.
How the hard drive works
Under the different interfaces, the hard drive consists of magnetized platters connected to a spindle. The spindle rotates as the head reads or write the data. Data is via cable to the periphery devices. Some computer system has inbuilt drive connector in the motherboard. Others, are via add in, or interface card. The efficiency of the hard drive depends on a number of conditions. It includes capacity of the hard drive and the data transfer rate. The storage space without files is also important. The drive spin rate affects the efficiency of the hard drive. The Small Computer System Interface is fast owing to the spin rate.
What you should know about the Small Computer System Interface evolution
Ever since the introduction of the Small Computer System Interface standard in 1986, there have been significant changes in features and design. New technologies ensure storage is fast, dependable and reliable. The drive supports a range of applications and devices. The periphery devices that can support Small Computer System Interface include tape drives, optical drives, printers and scanners. In addition, there is an improvement in speed, bus width, and versatility. Nowadays, hard drives can connect to multiple devices and have robust performance at the same time.
The basic connections of Small Computer System Interface drives
The basic pin connector 25 pin connector, which has a transfer rate of 4 Mbps. Another connection is the 50-pin connection with transfer rate of 4mbps. The 68-pin connector supports data transfer rate of 25 Mbps. There are super fast speeds and data transfer rate of 80 Mbps, under the 16-bit BUS.
Connection to the motherboard
When connecting the drive to the motherboard, an adaptor card commonly known as host adaptor. The adaptor helps to communicate and process the data. The controller allows the individual control to process the data during heavy data processing.
Comparing Small Computer System Interface and SATA, ATA standards reliability
The drive is on higher standards than ordinary SATA, ATA drives. Mean Time Between Failure (MTBF) of up to 1.5 million hours. Typical desktop hard drives have a MTBF of 500, 000 hours. The Small Computer System Interface hard drive has higher rotational speeds of up to 15000 rpm enhance the process of accessing data. Unlike with ATA and SATA standards, the Small Computer System Interface standards do not even require the central processing unit resources to process the communications. Therefore, the Small Computer System Interface adaptor can support multiple devices and manage communication with 15 drives concurrently.