Computer Science 322
Operating Systems

Mount Holyoke College
Spring 2008

Lecture 30: File System Optimizations: Caching, RAID, Journaling, Disk Scheduling
Date: Monday, April 28, 2008


Lecture Assignment

Due at the start of class, Wednesday, April 30, 2008.

Turn in short answers to these questions. Please turn in a hard copy (typeset or handwritten are OK). We will discuss these questions during class, so no late submissions are accepted.

  1. Submit a one-page summary of the important ideas behind the Unix Buffer Cache, based on the supplemental readings.
  2. SG&G 12.2

The readings for next time are SG&G Chapter 12, UNIX Buffer Cache handout from Bach 1986.


Journaling filesystems: