COMP 3430 Operating Systems
File systems 1
March 14th, 2022 (𝜋 day!)
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By the end of today’s lecture, you should be able to:
▶ List types of file systems.
▶ Describe how a specific file system is
implemented.
The Rocket Book (Public Domain)
File systems
/dev/nvme0n1 on my system.
Many different kinds of file systems.
▶ ext{2,3,4}
▶ {ex,}FAT{12,16,32} ▶ NTFS
File systems
/dev/nvme0n1 on my system.
Think about it : Why might there be so many different kinds of file systems?
▶ The textbook describes “vsfs”.
▶ This is remarkably similar to ext2/3.
▶ Let’s remind ourselves about this file system.
Figures of vsfs (©2008-21, Arpaci-Dusseau)
Evaluating the file system
Let’s look at some guiding questions.
▶ Many file systems.
▶ Different types of systems solve different problems.
▶ Different types of systems solve problems differently.
▶ VSFS/ext2 is an implementation of a file system.
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