Goal

• Understand the issues and some solutions to file system reliability problem.

Reading Assignments

• MOS 6.3.6 and 6.3.8

Issues 

• If you can control the order of flushing blocks from the buffer cache to disk, what could you do to improve the reliability, without hurting performance?
• Please say very briefly what to do in order to make a log-structured file system be consistent after a crash.