March 2005
Beginner to intermediate
600 pages
16h 26m
English
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17. UFS1 and UFS2 Data Structures
This chapter describes the data structures that make up a UFS1 or UFS2 file system. The general concepts and analysis techniques for UFS were discussed in the previous chapter, and this chapter shows the layout of the data structures and where they are located in an example file system image. It is assumed that you are reading this chapter in parallel with the previous chapter or that you have already read it. As mentioned in the previous chapter, the UFS data structures contain multiple fields to store a single value in different formats. For example, the size of a block is stored both as a number of fragments and as a number of bytes. The different formats prevent the OS from having to calculate the different ...
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