September 2021
Beginner to intermediate
392 pages
12h 13m
Chinese
book
Google系统架构解密： 构建安全可靠的系统
by Heather Adkins, Betsy Beyer, Paul Blankinship, Piotr Lewandowski, Ana Oprea, Adam Stubblefield
Content preview from Google系统架构解密： 构建安全可靠的系统
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防灾规划
｜
259
短期恢复阶段应包括制订事件的退出标准，即宣布事件响应完成的标准。恢复成功意味着
将服务恢复到完全可操作的状态，但底层解决方案可能是新设计的，能提供相同的服务级
别。该标准还可以要求解决通过风险分析发现的安全威胁。
在制订针对即时响应、短期恢复、长期恢复以及恢复运营的战略时，可以通过以下方式做
准备。
•
分析可能影响组织或造成严重后果的潜在灾害。
•
组建响应团队。
•
制订响应计划和详细的行动手册。
•
恰当地配置系统。
•
测试流程和系统。
•
采纳测试和评估得出的反馈。
16.3
灾难风险分析
开展灾难风险分析是确定组织最关键操作的第一步。如果缺失这一步，将导致系统完全瘫
痪。关键的操作功能不仅包括重要的核心系统，还包括底层依赖关系，如网络和应用程序
层组件。灾难风险分析应确定以下内容。
•
有一类系统，如果它们被破坏或掉线，可能导致操作失效。可将其分为任务关键型、任
务重要型或非必要型。
•
应对事件所需的技术或人力资源。
•
每个系统可能面临的灾难场景。可按发生的可能性、频率和对操作的影响（低、中、高
或关键）对其进行分组。
虽然可以凭借直觉对进行运维情况评估，但采用更正式的风险评估方法有助于规避从众思
维，从而暴露出隐藏较深的风险。为了使分析更彻底，我们建议使用标准化矩阵对组织面
临的风险进行排序，罗列每种风险发生的概率及其影响。附录提供了一个风险评估矩阵样
例，无论组织大小都可以视系统的具体情况进行定制。
为了解决注意力首先应集中在哪里，风险评级提供了一套很好的经验法则。对潜在异常值
进行评级排序后，应复查该风险列表。例如 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.