By Martin Bach, Kristofferson Arao, Andy Colvin, Frits Hoogland, Visit Amazon's Kerry Osborne Page, search results, Learn about Author Central, Kerry Osborne, , Randy Johnson, Tanel Poder
Expert Oracle Exadata, second Edition opens up the internals of Oracle's Exadata platform so you might absolutely enjoy the such a lot performant and scalable database equipment in a position to working Oracle Database. This variation is fully-updated to hide Exadata 5-2 and Oracle Database 12c. if you are new to Exadata, you will soon examine that it embodies a metamorphosis in the way you take into consideration and deal with relational databases. A key a part of that vary lies within the idea of offloading SQL processing to the garage layer. additionally there's Oracle's engineering attempt in making a robust platform for either consolidation and transaction processing. The ensuing worth proposition within the kind of Exadata has actually been a game-changer.
Expert Oracle Exadata, 2d Edition presents a glance on the internals and the way the mix of and software program that contain Exadata truly paintings. Authors comprise Martin Bach, Andy Colvin, and Frits Hoogland, with contributions from Karl Arao, and equipped at the starting place laid by means of Kerry Osborne, Randy Johnson, and Tanel Poder within the first variation. They proportion their real-world event received via an outstanding many Exadata implementations, almost certainly greater than the other crew of specialists this day. regularly their aim is towards assisting you develop your profession via luck with Exadata on your personal atmosphere. This booklet is meant for readers who are looking to comprehend what makes the platform tick and for whom—"how" it does what it's does is as very important as what it does. through being uncovered to the positive aspects which are distinct to Exadata, you'll achieve an realizing of the mechanics that might let you absolutely enjoy the merits that the platform offers.
This ebook adjustments the way you take into consideration handling SQL functionality and processing. It offers a roadmap to winning Exadata implementation. And it gets rid of the "black field" mystique. you will find out how Exadata really works and be larger capable of deal with your Exadata engineered platforms in help of your small business.
- Changes how you take into consideration handling SQL functionality and processing
- Provides a roadmap to winning Exadata implementation
- Removes the "black field" mystique, exhibiting how Exadata really works
What youll learn
- Configure Exadata from the floor up
- Optimize for combined OLTP/DW workloads
- Migrate huge info units from latest structures
- Connect Exadata to exterior platforms
- Support consolidation techniques utilizing the source supervisor
- Configure high-availability positive factors of Exadata, together with actual software Clusters (RAC) and automated garage administration (ASM)
- Apply tuning options using the original beneficial properties of Exadata
Who this booklet is for
Expert Oracle Exadata, second Edition is for database directors and builders who are looking to comprehend what makes Exadata certain that allows you to make the most of the entire platform has to provide. it's also for somebody who must plan and execute migrations of structures to the Exadata platform. ultimately, the e-book can be valuable to those that help and preserve such structures.
Table of Contents
- What Is Exadata?
- Offloading / clever test
- Hybrid Columnar Compression
- Storage Indexes
- Exadata shrewdpermanent Flash Cache
- Exadata Parallel Operations
- Resource administration
- Configuring Exadata
- Recovering Exadata
- Exadata Wait occasions
- Understanding Exadata functionality Metrics
- Monitoring Exadata functionality
- Migrating to Exadata
- Storage format
- Compute Node Layout
- Unlearning a few issues We inspiration We Knew
- Appendix A: CELLCL and DCLI
- Appendix B: on-line Exadata Resources
- Appendix C: Diagnostic Scripts
- Appendix D: Exachk
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Extra info for Expert Oracle Exadata
The architecture on the storage servers is pretty simple. There is one master process (cellsrv), and the offload servers that handle all the communication to and from the database servers. There are also a handful of ancillary processes for managing and monitoring the environment. ora file and has an alert log. In fact, the storage software bears a striking resemblance to an Oracle database. This should not be too surprising. ora file contains a set of parameters that are evaluated when cellsrv is started.
Exadata is an integrated hardware/software product that depends on both components to provide substantial performance improvement over non-Exadata platforms. However, the performance benefits of the software component dwarf the benefits provided by the hardware. Here is an example: SQL> alter session set cell_offload_processing=false; Session altered. 15 SQL> alter session set cell_offload_processing=true; Session altered. 68 This example shows the performance of a scan against a single, partitioned table.
Unfortunately, the storage servers are generally off-limits to everyone except the designated system administers or DBAs. state -debug 0 14 Chapter 1 ■ What Is Exadata? sh 120 30 15 Chapter 1 ■ What Is Exadata? As you can see, there are a number of processes that look like cellrsvXXX. These are the processes that make up the Restart Server. The first bolded process is cellsrv itself. The next two bolded processes are the offload servers (discussed in further detail in Chapter 2), which were introduced in the 12c version of the Exadata Storage Server software.
Expert Oracle Exadata by Martin Bach, Kristofferson Arao, Andy Colvin, Frits Hoogland, Visit Amazon's Kerry Osborne Page, search results, Learn about Author Central, Kerry Osborne, , Randy Johnson, Tanel Poder