What are the hard disk interfaces?

Last Update Time: 2022-06-08 10:38:31

 1. IDE interface

  IDE's English name is "IntegratedDriveElectronics", that is, "electronic integrated drive", its original meaning refers to the "hard disk controller" and "disk body" integrated hard drive.

The method of integrating the disk body and the controller reduces the number and length of cables of the hard disk interface. The reliability of  data transmission has been enhanced, and the manufacture of hard disks has become easier because hard disk manufacturers do not need to worry about their own hard disks. Is it compatible with controllers produced by other manufacturers?

  For users, the hard disk is also more convenient to install. The interface technology of IDE has been continuously developed since its birth, and its performance has been continuously improved. Its low price and strong compatibility have created an irreplaceable position for other types of hard drives.

   2. SATA interface

   Hard disk SATA interface Hard disk using SATA (SerialATA) port is also called serial hard disk, which is the mainstream trend of PC hard disk in the future and now.

SerialATA uses a serial connection method. The serial ATA bus uses an embedded clock signal and has stronger error correction capabilities. The biggest difference compared to the past is that it can check the transmission instructions (not just data). Errors are automatically corrected, which greatly improves the reliability of data transmission.

   3. SCSI interface

The English name of SCSI is "SmallComputerSystemInterface" (small computer system interface), which is a completely different interface from IDE (ATA). The IDE interface is a standard interface for ordinary PCs, and SCSI is not an interface designed specifically for hard disks. High-speed data transmission technology applied to minicomputers.

The SCSI interface has the advantages of wide application range, multi-tasking, large bandwidth, low CPU usage, and hot plugging, but the higher price makes it difficult to popularize like IDE hard drives, so SCSI hard drives are mainly used in medium and high-end servers And high-end workstations.

   4. Fibre Channel

The English spelling of Fibre Channel is FiberChannel. Like the SCSI interface, Fibre Channel was originally not an interface technology designed and developed for hard disks. It was specifically designed for network systems, but it was gradually applied to hard disk systems as the storage system demanded speed. .

   Fibre Channel hard drives were developed to increase the speed and flexibility of multiple hard drive storage systems. Its appearance greatly improves the communication speed of multiple hard drive systems. The main characteristics of Fibre Channel are: hot swappability, high-speed bandwidth, remote connection, and a large number of connected devices.

   5, SAS

  SAS (SerialAttachedSCSI) is a serial connection SCSI, which is a new generation of SCSI technology.

   is the same as the popular SerialATA (SATA) hard disk, it uses serial technology to obtain higher transmission speed, and improve internal space by shortening the connection line. SAS is a brand new interface developed after the parallel SCSI interface. The design of this interface is to improve the performance, availability and expandability of the storage system, and to provide compatibility with SATA hard drives.


If you want to know more, our website has product specifications for interfaces, you can go to ALLICDATA ELECTRONICS LIMITED to get more information