Summary


It is virtually impossible to understand how storage networks work without understanding filing functions. As the top functional layer in any storage process, filing is responsible for determining where data objects are located within the available storage address spaces.

This chapter introduced the fundamental concepts of file system operations. It began with a discussion contrasting file systems and operating systems and then moved into a discussion of the two primary structures in file systems: the directory system and the layout reference system. The directory system allows users and applications to logically group and locate data. The layout reference system is used to locate data precisely within a storage address space.

The end of the chapter explored other common aspects of file systems, such as the superblock, name space, metadata and attributes, locking, and journaling.

With this basic knowledge of file system operations, it is possible to look at the more advanced filing concepts that are employed in storage networks and that are discussed in the remaining chapters.



Storage Networking Fundamentals(c) An Introduction to Storage Devices, Subsystems, Applications, Management, a[... ]stems
Storage Networking Fundamentals: An Introduction to Storage Devices, Subsystems, Applications, Management, and File Systems (Vol 1)
ISBN: 1587051621
EAN: 2147483647
Year: 2006
Pages: 184
Authors: Marc Farley

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net