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Exadata Database Machine

Exadata Database Machine

The Oracle Exadata Database Machine is engineered to deliver dramatically better performance, cost effectiveness, and availability for Oracle Databases. With high-performance database servers, scale-out intelligent storage servers with leading-edge storage caching technologies, and cloud scale RDMA-enabled internal network fabric, Oracle Exadata Database Machine is the best platform to run the Oracle Database.

Exadata X9M-2 Key Features

  • Up to 1216 CPU cores and 38 TB memory per rack for database processing
  • Up to 576 CPU cores per rack dedicated to SQL processing in storage
  • Up to 27 TB of Persistent Memory Acceleration per rack
  • 100 Gb/sec RoCE Network
  • Complete redundancy for high availability
  • From 2 to 19 Database Servers per rack
  • From 3 to 18 Storage Servers per rack
  • Up to 920 TB of flash capacity (raw) per rack
  • Up to 3.8 PB of disk capacity (raw) per rack

Exadata X9M Key Benefits

  • Pre-configured, pre-tested system optimized for all database applications
  • Uncompressed I/O bandwidth of up to 1 TB/sec per full rack from SQL
  • Ability to perform up to 27.6M 8K database read I/O operations, or 8.59M 8K Flash write I/O operations per second in a single rack
  • Easily add compute or storage servers to meet the needs of any size application
  • Scale by connecting multiple Exadata Database Machine X9M racks or Exadata X9M Storage Expansion Racks

What's New In Exadata

Juan Loaiza Introduces Oracle Exadata X9M Generation (17:29)

Exadata Product Development Blog

Exadata: A Guide for Decision Makers

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Extreme Performance and Availability at Lowest Cost

Exadata Database Machine

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The Oracle Exadata Database Machine is engineered to deliver dramatically better performance, cost effectiveness, and availability for Oracle Databases. Exadata features a modern cloud-enabled architecture with scale-out high-performance database servers, scale-out intelligent storage servers with state-of-the-art PCIe flash, leading-edge storage cache using persistent memory, and cloud scale RDMA over Converged Ethernet (RoCE) internal fabric that connects all servers and storage. Unique algorithms and protocols in Exadata implement database intelligence in storage, compute, and networking to deliver higher performance and capacity at lower costs than other platforms, for all types of modern database workloads including Online Transaction Processing (OLTP), Data Warehousing (DW), In-Memory Analytics, Internet of Things (IoT), financial, gaming and compliance data management, as well as efficient consolidation of mixed workloads.


The Exadata Database Machine is the most cost-efficient and highest performance platform for running Oracle Databases. Exadata is easy to deploy even for the most mission-critical systems, as the database servers, storage servers and network are pre-configured, pre-tuned and pre-tested by Oracle experts. Extensive end-to-end testing and validation ensures all components including database software, operating system, hypervisor, drivers, firmware, work seamlessly together and that there are no performance bottlenecks or single points of failure.

All Exadata Database Machines are identically configured, therefore customers benefit from the experience of thousands of other customers’ Exadata Database Machine deployments. Customer machines are also identical to the machines Oracle Support uses for problem identification and resolution, the machines Oracle Development uses for development and testing of the Oracle Database, and the machines that run Oracle’s own public cloud services. Exadata is the most thoroughly tested and tuned platform for running Oracle Database.

Any application that uses the Oracle Database today can be seamlessly migrated to the Exadata Database Machine, with no changes to the application. Likewise, any Oracle Database can also be easily migrated off Exadata, eliminating “lock-in” concerns.


Exadata Database Machine is the most versatile database platform. The Exadata Database Machine uses powerful database servers, available in 2 Socket, or 8 Socket forms. Exadata also uses a scale-out, intelligent storage layer that cooperates in the processing of database requests beyond just storing and shipping data. Available in three configurations, High Capacity (HC), Extreme Flash (EF) and Extended Storage (XT) to cover every storage requirement for Oracle Database. A high-bandwidth, low-latency RDMA over Converged Ethernet (RoCE) Network Fabric connects all the components inside an Exadata Database Machine. Specialized database networking protocols deliver much lower latency and higher bandwidth than is possible with generic communication protocols for faster response time for OLTP operations and higher throughput for analytic workloads.


As data volumes continue their fast growth, conventional storage arrays struggle to quickly transfer data from disk and flash to database servers at a rate that keeps the CPUs busy. Modern servers with dozens of CPU cores can consume data at many tens to hundreds of gigabytes a second. This is far faster than conventional storage arrays can deliver data through their storage controllers and the storage network. Exadata System Software enables Exadata's unparalleled performance without any of the bottlenecks of traditional storage, by implementing a unique highly efficient database-optimized storage infrastructure on the Exadata Storage Server. Each Storage Server contains CPU processors that are used to offload database processing. The CPUs in the storage servers do not replace database CPUs. Instead they accelerate database intensive workloads similar to how graphics cards accelerate image intensive workloads.


The Exadata Database Machine is engineered to provide the highest levels of availability. All types of failures are protected against from simple failures such as disk, server, or network, to complex site failures and human errors. When deployed using Oracle's Maximum Availability Architecture (MAA), Exadata has been identified by the analyst firm IDC as a system that delivers at least 5-nines availability and has been categorized in the IDC AL4 fault-tolerant market segment.1 As a result of its industry leading availability, the Exadata Database Machine has been deployed by leading companies for their most critical applications including interbank fund transfers, online securities trading, real-time call tracking, and web-based retailing, and many more. Exadata's Mission Critical availability capabilities are not restricted to OLTP workloads; they also apply to warehousing and analytics.
1Worldwide AL4 Server Market Shares, 2019: Fault-Tolerant Systems Become Digital Transformation Platforms, IDC, Paul Maguranis Peter Rutten, July 2020

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Read the latest documentation for Exadata Hardware and Software.

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Work with the Oracle Solution Center to see the benefits of running your workload on Exadata.

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See the latest information and read in-depth technical articles on the Exadata blog.

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