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Chapter 3. File Systems

Chapter 3. File Systems

Time

This chapter takes approximately 3 hours to complete.

Goals

Recognize the various file systems supported by Lion

Manage and troubleshoot file systems using a variety of tools

Understand how to use FileVault 2 full disk encryption

Understand and manage file ownership and permissions

Although personal computer processor speed has increased around a thousandfold since the first Mac was introduced in 1984, storage capacity has easily increased a million times over. Compare 1984’s 400 KB floppy to today’s average desktop drive at 1 TB, which is roughly equivalent to 1,000,000,000 KB, or 2.5 million 400 KB floppies. Users have responded by moving thousands of pictures and hundreds of hours of music and video, historically stored in analog form, to digital storage. Likewise, enterprise customers have replaced filing cabinets and storage rooms with Redundant Arrays of Independent Disks (RAID) and backup tapes. Even though the Internet has recently changed our perception of what a computer is used for, it’s clear that the com....


  

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