August 2011
Intermediate to advanced
576 pages
16h 12m
English
book
Oracle Database 11g Oracle Real Application Clusters Handbook, 2nd Edition, 2nd Edition
by K Gopalakrishnan
Content preview from Oracle Database 11g Oracle Real Application Clusters Handbook, 2nd Edition, 2nd 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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Administering Online Redo Logs
Oracle uses online redo log files to log any changes to data blocks. Each instance has its own set of online redo log files. A set of redo logs used in a circular manner by an instance is known as a thread. A thread contains at least two online redo logs. The size of an online redo log is independent of other instances’ redo log sizes and is determined by the local instance’s workload and backup and recovery considerations.
Each instance has exclusive write access to its own online redo log files. An instance can read another instance’s current online redo log file to perform instance recovery if that instance has terminated abnormally. Thus, an online redo log needs to be located on a shared storage device and ...
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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.