For each lecture, we'll post slides, an outline of the content, a recording, and supplemental reading. Slides will be up before lecture (but not necessarily at 9:00am); we post slides with all animations (good for following along exactly) and with limited animations (good for studying/taking notes on). The outline and recording will be posted after lecture (but not necessarily at 3:00pm; likely the next day or so). You can do the supplemental reading before or after lecture; whatever works best for you.

• Slides: all animations, limited animations
• Outline
• Recording
• Supplemental Reading: Textbook §9.1, §9.2.1, §9.2.2

After this lecture, at a minimum, you should be able to do the following:

• Define atomicity and isolation and explain how they make handling failures easier
• Explain why the bank-transfer transaction crashing in the middle of the transfer, or while writing the accounts file, can cause problems (i.e., explain the problem that we use shadow copies to solve)
• Explain how we're able to make rename atomic, and what the commit point is
• Explain the purpose of a recovery process

There are no practice problems explicitly for shadow copies. To ensure that you understand atomicity and isolation, check out the practice problems from Lecture 17 and Lecture 18.