Welcome to the Oracle Exadata tutorial. Organizations focus on managing data workloads centrally so that the right insights had pulled from the data. Data redundancy is equally important as it acts as an extra protection layer for existing data systems in case of a disaster. Oracle Exadata enables the timely management of data and encompasses OLTP workloads. Are you looking forward to learning about Oracle Exadata? We are here to provide a basic level understanding of Exadata suitable for beginners in this Oracle Exadata tutorial for beginners. Let us get started.
Oracle Exadata is a database appliance designed for running Oracle databases and has released in the year 2008. It is available both on-premise and in Oracle cloud as a subscription service. It is a combination of the hardware and software platform that has computed and storage servers, networking, persistent memory (PMEM), NVMe flash, etc.
Exadata runs Oracle database workloads with Analytics processing. It allows mixed workloads to share resources with resource management features. Reports, batch jobs, analytics run many times faster in Exadata than in database servers. The actual computation has performed in the storage tier, which dramatically reduces the data transferred over the network.
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Oracle Exadata has offered in three ways.
Oracle Database Exadata Cloud Service
Oracle Exadata is available on Oracle cloud within the subscription pricing of Oracle Cloud. We can perform all the database options and BYOL pricing.
Oracle Exadata Cloud @ Customer
It enables the deployment of Oracle Exadata in your data centres. It will deploy behind the customer data centre firewalls, and Oracle will fully manage the infrastructure. It also supports all the database options and BYOL pricing.
Oracle Exadata database machine X8M
It minimizes OLTP latency and maximizes analytics throughput. It operates on on-premises for the database system and integrates server, storage, and networking. It also provides AI-enhanced management, troubleshooting, and application transparency.
The environment requirements for Oracle Exadata Database Machine depend on the size of the system. Select an Exadata rack that suits your organization based on the requirements like flooring, network, etc. The Exadata rack size varies from full to quarter. The installation of an Exadata rack is quite complicated and should only have performed by rack installation experts.
Once all the power cords are connected, switch on the PDU B circuit breakers one at a time. After the power LEDs are on, connect power to PDU A and switch on the circuit breakers.
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Ensure that there are no IP address conflicts between the existing network and the new Oracle Exadata Rack. You can do so by executing the 'checkip.sh' script. This script checks if the IP addresses and hostnames specified in Oracle Exadata Deployment Assistant (OEDA) has defined in the DNS. It also checks if the NTP servers and gateways are available or not.
Once the above steps are complete, the Oracle Exadata Deployment Assistant (OEDA) loads the network settings configuration files and installs Oracle database software.
Let us look at some differences between Oracle Exadata and Hadoop.
Oracle Exadata powers and protects your most prestigious databases. It suits best for optimizing Oracle database workloads. It uses unique software algorithms for implementing database intelligence in storage and computation. The Oracle Exadata on cloud includes Multitenant, In-Memory Database, Real Application Clusters (RAC), Advanced Security, etc. Oracle Exadata ensures a smooth transition of applications and data models to the cloud.
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