File Organization: Storage and Cache Management

This lecture covers the organization of files and pages in databases, including storage management, buffer management, and different file storage techniques such as heap files, sorted files, and log-structured files. It also delves into cache organization, multi-level cache systems, and access times, highlighting the trade-offs between speed and size. The instructor explains the average access time calculation in cache systems and the benefits of log-structured files for workloads with many small files. Additionally, the lecture discusses the implementation of heap files using list structures and page directories, as well as the reading and writing processes in log-structured files, emphasizing the pros and cons of this storage approach.