Troubleshooting Linux Storage: A systems administrator guide

Book Description

The can of worms, Pandora’s box, hornets nest, snake in the grass, boil the ocean. Now that we have the idioms out of the way, here is the first statement: “There are hundreds of ways to troubleshoot storage related issues and this book is not a silver bullet to solve all your problems!”. This book is also not a deep-dive into the architecture or code of every kernel piece you can find in relation to storage. That would really be like boiling the ocean. It also is no guide into designing end-to-end storage infrastructures. There is a great deal of knowledge and experience required in order to get application IO behaviour in line with storage capabilities. Every piece of hardware and software from application to spindle is an important piece of the puzzle, and having even one of them wrong may have a very severe impact not only on the data-path itself but also on other shared parts of that data-path. What this book will do is provide you a methodology into troubleshooting scenario’s that manifest themselves in Linux systems on various levels. Troubleshooting a storage environment is not something you’ll be able to take on lightly. There are many areas where issues may pop up. If you do not have a good knowledge of what storing and retrieving data entails in various infrastructures, you’ll soon experience you’ve ended up in a maze. A solid understanding of these environments and protocols will not only significantly reduce the chances of design and architecture issues, but also expedite resolution time in case things go wrong.

中文：

书名：Linux存储故障排除: 系统管理员指南

蠕虫的罐头，潘多拉的盒子，黄蜂的巢穴，草丛中的蛇，沸腾海洋。现在我们已经有了成语，这里是第一句话: “有数百种方法可以解决存储相关问题，这本书不是解决你所有问题的灵丹妙药!”。这本书也不是深入研究与存储有关的每个内核部分的体系结构或代码。那真的就像沸腾海洋。它也不是设计端到端存储基础架构的指南。要使应用程序IO的行为与存储功能保持一致，需要大量的知识和经验。从应用程序到主轴的每个硬件和软件都是难题的重要组成部分，甚至其中一个错误都可能不仅对数据路径本身而且对该数据路径的其他共享部分产生非常严重的影响。本书将为您提供一种解决方案的方法，该方法可以在各个级别的Linux系统中体现出来。对存储环境进行故障排除不是您可以轻而易举的事情。在许多领域可能会出现问题。如果您对各种基础架构中存储和检索数据的含义不了解，那么您很快就会遇到迷宫般的情况。对这些环境和协议的扎实理解不仅会大大减少设计和架构问题的机会，而且还会在出现问题时加快解决时间。