Your primary focus should be on being a good DBA before you look at Oracle RAC Training. Despite what you may believe, many of the issues you face in RAC are the same as those of single instance databases. If you are a weak DBA before embarking on the process of Oracle RAC Training, you are not going to have a fun time.
Oracle RAC Training: Real Application Clusters
Oracle Real Application Clusters (RAC) allow customers to run a single Oracle Database across multiple servers in order to maximize availability and enable horizontal scalability, while accessing shared storage. User sessions connecting to Oracle RAC instances can failover and safely replay changes during outages, without any changes to end user applications, hiding the impact of the outages from end users.
Basic Oracle RAC Training Installation
You are probably ready at this point to do some basic RAC installations. You can find examples of RAC installations on VirtualBox here. If you’ve done the groundwork mentioned previously, it should go really well. If you’ve rushed to this point, it will probably be a painful process.
Don’t assume one successful installation means you are ready to move on. Try installing different versions of RAC on different operating system versions. You will hit problems, but treat these as learning experiences.
Test Scenarios
Once you’ve got a basic RAC installation done, you will want to start testing RAC functionality. Here are some things, in no particular order, you should probably try out.
- The clean shutdown of a node. Check what happens in the remaining nodes’ log files.
- Power off a node. Check what happens in the remaining nodes’ log files.
- Turn off the network adapter for the interconnect on one node. Check what happens in the remaining nodes’ log files.
- Kill a RAC database instance and check the results.
- Kill an ASM instance and check the results.
- Check session failover during the above failures scenarios.
- Check loss and recovery of OCR and voting disks.
- Remove a node from the cluster.
- Add a node to the cluster.
- Practice patches/upgrades of the installation. You should try rolling and non-rolling patches.
- Practice backup/recovery of a RAC database. Block media recovery. Datafile and tablespace recovery. Point in Time Recovery (PITR).
- Practice DR of a single RAC instance. What happens if you lose a single server from the cluster and have to rebuild it from backups or from scratch?
- Practice DR of a whole RAC database. What happens if you lose everything. Can you recover the whole cluster from backups?
- Set up Data Guard between you RAC database and a standby RAC. This might be difficult depending on the kit you have available. Running two RAC systems on one PC can be hard work.
- Run a heavy load against the RAC database and see how the work gets spread across the nodes. Use Swingbench to supply the load.
- Direct load to specific nodes using node-specific services. Many beginners forget that RAC is not great at coping with multiple nodes fighting over the same blocks repeatedly. You will often need to partition the workloads to different nodes using node-specific services to prevent interconnect-thrashing.
Oracle Real Application Clusters (RAC) is a high-availability and scalability solution that allows multiple Oracle database instances to run on different servers while accessing a shared database. If you are interested in acquiring Oracle RAC skills and knowledge, Oracle RAC training can be a valuable investment. Here are some key points to consider regarding Oracle RAC training:
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Official Oracle Training: Oracle offers official training courses specifically focused on Oracle RAC. These courses are designed to provide comprehensive knowledge and practical skills required for implementing and managing Oracle RAC environments.
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Course Content: Oracle RAC training courses typically cover a range of topics, including architecture and concepts of Oracle RAC, installation and configuration, Oracle Clusterware, Oracle Grid Infrastructure, managing RAC instances, workload management, backup and recovery, and performance tuning.
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Training Formats: Oracle RAC training is available in various formats to suit different learning preferences and schedules. These formats include instructor-led classroom training, virtual training, and self-paced online training. You can choose the format that best fits your needs and availability.
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Training Partners: Oracle works with authorized training partners worldwide to deliver Oracle RAC training. These partners offer training in different locations, so you can choose a partner and location that is convenient for you.
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Hands-on Experience: Oracle RAC training often includes hands-on exercises and practical lab sessions. These hands-on activities allow you to gain experience in setting up and managing Oracle RAC environments, performing administrative tasks, and troubleshooting common issues.
Importance of RAC Training
Oracle Real Application Clusters (RAC), in-database computing offers software that is used for the purposes of clustering and high availability in Oracle-specific database environments. Oracle RAC, in other words, is a cluster database. It comes with a shared cache architecture that moves beyond the constraints of the conventional “shared-nothing” and “shared-disk” approaches to offer solutions that are scalable as well as applicable across all your business applications. As far as the functionality is concerned, Oracle RAC enables several computers to operate the Oracle RDBMS software. All this is done simultaneously while accessing one single database, hence offering to cluster.
Oracle RAC is the characteristic constituent of Oracle’s private cloud architecture. The RAC support can therefore be found in the Oracle Database Standard Edition to achieve higher levels of system uptime. The main aim of Oracle 11g RAC Training is thus to improve system performance, scalabiliy, and flexibility.
Apart from these three benefits, Oracle RAC also offers the following advantages:
- The overall cost of ownership is low.
- The IT-related costs are also low.
- Transparency is maintained throughout the application.
- There is Buffer Cache Management and Row Locking.
- They support the full functionality for Recovery Manager, Online Backups, and Archiving.
- There is better optimization of database workloads.
- There is delivery of high-quality service which facilitates smooth and rapid consolidation within a data center.
If you are interested in Oracle RAC training certification, you can either opt for Oracle 12c training or Oracle 11g RAC training, depending on your credentials and career requirements. Both these fields have very different yet specific purposes to serve. Gaining a license in Oracle RAC can prove highly beneficial for you. It can throw open many good career opportunities for you and also set your career path in the right direction.
Oracle RAC Course
ELearning Solutions is a pioneering IT training institute that offers Oracle RAC training in Pune. We boast of our knowledgeable trainers whom we fondly call our asset. They impart lessons in a unique way putting all of their theoretical and practical knowledge into use. These expert professionals have gained part of their knowledge from their hands-on experience of working with MNCs, handling projects based on the RAC technology and related areas. We have designed this Oracle RAC training in Pune especially for people who are interested to change their work domain or either they want to become a good Database Administrator in Oracle DBMS. This course is a level up than Normal DBA, it’s totally based on Clusters and their implementation in Industry.
eLearning Solutions provides the best Oracle RAC Online Training Course by our highly professional certified trainers. Oracle RAC allows multiple computers to run Oracle RDBMS software simultaneously while accessing a single database thus providing clustering. The main aim of the Oracle RAC online course is to implement a clustered database to provide performance, scalability and resilience.
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