Lesson #9 File Systems

Learner Outcomes

• compare the pros and cons of different filesystem constructions.
• Monitor file system usage and recover from disk full problems
• Create, mount, unmount, check and repair file systems.
• Establish hard and soft disk quotas for users.

Agenda

• Use system tools to find large directories and files that are filling a file system.
  1. What is the largest filesystem on your computer?
  2. Which filesystem has the least amount of free space available?
  3. What are the three largest subdirectories of /usr?
  4. Explain the difference between the size of /var/log/lastlog and its disk usage.
• View and alter the information in a file system superblock.
• Check and repair a broken filesystem
• Recover a corrupted superblock.
• Add a /tmp filesystem
• Set up user disk quotas on a /home filesystem

Assignment

• Do Lab 7
• Read sections 1,3,4,5 and 6 in chapter 10 on Backups, paying special attention to sections 1,3 and 4.
• Extra Credit Lab7x

Resources

• PowerPoint Slides
• Lecture 9 Archive
• Demonstrate automounting file systems: CCC Confer Video

Relevant Commands and Files