November 2007
Intermediate to advanced
406 pages
12h 48m
English
Content preview from Oracle Essentials, 4th EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 11. Oracle and High Availability
The data stored in your databases is one of your organization’s most valuable assets. Protecting and providing timely access to this data when it is needed for business decisions is crucial for any Oracle site.
As a DBA, system administrator, or system architect, you’ll probably use a variety of techniques to ensure that your data is adequately protected from catastrophe. Of course, implementing proper backup operations is the foundation of any availability strategy, but there are other ways to avoid a variety of possible outages that could range from simple disk failures to a complete failure of your primary site.
Computer hardware is, by and large, extremely reliable, and that can tempt you to postpone thinking about disaster recovery and high availability. Most software is also very reliable, and the Oracle database protects the integrity of the data it holds even in the event of software failure. However, hardware and software will fail occasionally. The more components involved, the greater the likelihood of downtime at the worst time.
The difference between inconvenience and disaster is often the presence or absence of adequate recovery plans. This chapter should help you understand all of the options available when deploying Oracle so you can choose the best approach for your site.
With Oracle, you can guarantee that your precious data is highly available by leveraging built-in capabilities such as instance recovery or options such as ...
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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.
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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.