Intelligent Peripheral Interface
In this article, we will thoroughly explore Intelligent Peripheral Interface and its impact on today's society. From its origins to its relevance today, Intelligent Peripheral Interface has played a crucial role in various aspects of everyday life. Throughout history, Intelligent Peripheral Interface has been the subject of study, debate and controversy, which has led to a greater understanding of its importance and relevance in different areas. Through this comprehensive analysis, we hope to shed light on the different aspects of Intelligent Peripheral Interface and its influence on modern society. Intelligent Peripheral Interface will undoubtedly continue to be a topic of interest in the future, and it is essential to understand its impact in today's world.
Intelligent Peripheral Interface (IPI) was a server-centric storage interface used in the 1980s and early 1990s with an ISO-9318 standard.[1] designed for mainframe computers from IBM, Control Data Corporation, and Unisys. It replaced Storage Module Device (SMD) as the hard disk drive interface for very large hard disks.[2]
The idea behind IPI is that the disk drives themselves are as simple as possible, containing only the lowest level control circuitry, while the IPI interface card encapsulates most of the disk control complexity. The IPI interface card, as a central point of control, is thus theoretically able to best coordinate accesses to the connected disks, as it "knows" more about the states of the connected disks than would, say, a SCSI interface.
IPI supports cable lengths up to 125 metres (410 ft).[2] An IPI-2 bus can provide a data transfer rate in the vicinity of 6 MB/s.
In practice, the theoretical advantages of IPI over SCSI were often not realized, as they only materialized when several disks were connected to the interface, which could then easily become a bandwidth bottleneck.
IPI systems were often shipped by Sun Microsystems on original sun4 architecture servers, but the above limitation and reliability problems made them unpopular with customers, and the technology basically disappeared by the second half of the 1990s.
See also
References
- ^ Allan, Dal, ed. (1988), ISO/DIS 9318 -- Information Processing Systems -- Intelligent Peripheral Interface, International Organization for Standardization
- ^ a b Glass, Brett (February 1989). "Hard Disk Interfaces". BYTE. pp. 293–297. Retrieved 2024-10-08.
| General | |
|---|---|
| Standards |
|
| Storage |
|
| Peripheral | |
| Audio | |
| Portable | |
| Embedded | |
Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest.  Category | |
 | This computer-storage-related article is a stub. You can help Wikipedia by expanding it. |