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2. Log-structured file system - Wikipedia

   en.wikipedia.org/wiki/Log-structured_file_system

   Log-structured file system. A log-structured filesystem is a file system in which data and metadata are written sequentially to a circular buffer, called a log. The design was first proposed in 1988 by John K. Ousterhout and Fred Douglis and first implemented in 1992 by Ousterhout and Mendel Rosenblum for the Unix-like Sprite distributed ...

3. Log management - Wikipedia

   en.wikipedia.org/wiki/Log_management

   Log management is the process for generating, transmitting, storing, accessing, and disposing of log data. A log data (or logs) is composed of entries (records), and each entry contains information related to a specific event that occur within an organization’s computing assets, including physical and virtual platforms, networks, services, and cloud environments.

4. Log-structured merge-tree - Wikipedia

   en.wikipedia.org/wiki/Log-structured_merge-tree

   Log-structured merge-tree. In computer science, the log-structured merge-tree (also known as LSM tree, or LSMT[1]) is a data structure with performance characteristics that make it attractive for providing indexed access to files with high insert volume, such as transactional log data. LSM trees, like other search trees, maintain key-value pairs.

5. Write-ahead logging - Wikipedia

   en.wikipedia.org/wiki/Write-ahead_logging

   A write ahead log is an append-only auxiliary disk-resident structure used for crash and transaction recovery. The changes are first recorded in the log, which must be written to stable storage, before the changes are written to the database. [2] [3] The main functionality of a write-ahead log can be summarized as:

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Database storage structures - Wikipedia

   en.wikipedia.org/wiki/Database_storage_structures

   Database storage structures. Database tables and indexes may be stored on disk in one of a number of forms, including ordered/unordered flat files, ISAM, heap files, hash buckets, or B+ trees. Each form has its own particular advantages and disadvantages. The most commonly used forms are B-trees and ISAM. Such forms or structures are one aspect ...