December 2004
Beginner
480 pages
11h 54m
English
book
Storage Networking Fundamentals: An Introduction to Storage Devices, Subsystems, Applications, Management, and Filing Systems
by Marc Farley
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Dynamic Multipathing
The rest of the chapter discusses the logical operations of path redundancy, which is commonly called dynamic multipathing (DMP). In this chapter, the shortened term multipathing means the same thing as dynamic multipathing.
The Big Picture of Dynamic Multipathing
Multipathing is concerned with a very small subset of the overall I/O path: the Small Computer Systems Interface (SCSI) architectural elements responsible for SCSI layer transmissions between host systems and storage. In a nutshell, multipathing establishes two or more SCSI communication connections between a host system and the storage it uses. If one of these communication connections fails, another SCSI communication connection is used in its place. Figure 11-1 ...
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