This article contains content that is written like an advertisement. (February 2020)
|Original author(s)||Oracle Corporation|
|Initial release||October 2008|
|Operating system||Oracle Linux|
|Platform||Exadata Database Machine|
Exadata is a combined hardware and software platform that includes scale-out Intel x86-64 compute and storage servers, RoCE or InfiniBand networking, persistent memory (PMEM), NVMe flash, and specialized software.
Exadata was introduced in 2008 for on-premises deployment, and, since October 2015, via the Oracle Cloud as a subscription service, known as the Exadata Cloud Service. Exadata Cloud@Customer is an on-premises implementation of Exadata Cloud Service, available since 2017. Oracle databases deployed in the Exadata Cloud Service or Exadata Cloud@Customer are 100% compatible with databases deployed on Exadata on-premises, which enables customers to transition to the Oracle Cloud with no application changes. Oracle Corporation manages this service, including hardware, network, Linux software and Exadata software, while customers have complete ownership of their databases.
Exadata is designed to run Oracle Database workloads, such as an OLTP application running simultaneously with Analytics processing. Historically, specialized database computing platforms were designed for a particular workload, such as Data Warehousing, and poor or unusable for other workloads, such as OLTP. Exadata allows mixed workloads to share system resources fairly with resource management features allowing prioritized allocation, such as always favoring workloads servicing interactive users over reporting and batch, even if they are accessing the same data. Long running requests, characterized by Data Warehouses, reports, batch jobs and Analytics, are reputed to run many times faster compared to a conventional, non-Exadata database server.
|Exadata Release||Primary Software Enhancements||Primary Hardware Enhancements|
|X8M - Sept, 2019||RoCE: RDMA over Converged Ethernet||Persistent Memory (PMEM) in storage|
|Persistent Memory Data Accelerator||100 Gbit/s internal fabric (2.5x increase)|
|Persistent Memory Commit Accelerator|
|KVM virtual machine support|
|X8 - April, 2019||AIDE: Advanced Intrusion Detection Environment||Storage Server Extended (XT)|
|ML-based monitoring and auto-indexing||40% increase in disk capacity|
|Real-time updates of optimizer statistics||60% increase in storage processor cores|
|X7 - Oct, 2017||In-memory database in flash storage||2x increase in flash capacity|
|DRAM cache in storage||25% increase in disk capacity|
|Large-scale storage software updates||25 Gbit/s data center Ethernet support|
|Exadata Cloud@Customer||Exadata Cloud Service on-premises|
|X6 - April, 2016||Exafusion direct-to-wire OLTP protocol||2x increase in flash capacity|
|Smart Fusion Block Transfer||10% increase in compute cores|
|Smart Flash Log||2x increase in memory capacity|
|Exadata Cloud Service||Exadata on Oracle Cloud Infrastructure (OCI)|
|X5 - Dec, 2014||In-memory database fault tolerance||2x increase in flash & disk capacity|
|Database snapshots||Elastic configurations|
|Xen virtual machine support||All-flash storage server option|
|NVMe flash protocol support||50% increase in compute cores|
|IPv6 support||50% increase in memory capacity|
|X4 - Nov, 2013||Network Resource Management||2x increase in flash capacity|
|I/O latency capping||2x increase in memory capacity|
|Capacity-on-Demand licensing||50% increase in compute cores|
|Active/Active InfiniBand (2x increase)||33% increase in disk capacity|
|X3 - Sept, 2013||Smart Flash Cache write-back||Eighth-Rack configuration|
|Improved management of slow disks/flash||4x increase in flash capacity|
|Sub-second brownout after storage failure||33% increase in compute cores|
|Simplified disk replacement||75% increase in memory capacity|
|Bypass predictive disk failure||2x increase in data center bandwidth|
|X2 - Sept, 2010||Smart Flash Log||8-socket (X2-8) configuration|
|Auto Service Request||Storage Expansion Rack|
|Secure Erase of storage||Hardware-based decryption|
|Platinum Services||50% increase in compute cores|
|2x increase in memory capacity|
|50% increase in disk capacity|
|8x increase in data center bandwidth|
|v2 - Sept, 2009||Storage Indexes||Flash storage|
|Database-aware Smart Flash Cache||Quarter-Rack configuration|
|Hybrid Columnar Compression||2x increase in memory & disk capacity|
|3x increase in data center bandwidth|
|40 Gbit/s internal fabric (2x increase)|
|v1 - Sept, 2008||Oracle Enterprise Linux||Scale-out 4-socket compute servers|
|Smart Scan (storage offload)||Scale-out 4-socket storage servers|
|IORM (I/O Resource Manager)||20 Gbit/s internal fabric (InfiniBand)|
|Join filtering (Bloom filters)||1 Terabyte disks|
|Incremental backup filtering||1 Gbit/s data center network (Ethernet)|
|Smart file creation|
As the platform has been around for over 11 years, Oracle has published information related to the end-of-support for the Exadata platform. In Oracle's published document titled Oracle Hardware and Systems Support Policies, they mention "After five years from last ship date, replacement parts may not be available and/or the response times for sending replacement parts may be delayed." To look up the "last ship date" of a particular Oracle Exadata Appliance, Oracle published a document titled Oracle Exadata - A guide for decision makers.
- Various (September 2019). "Oracle Exadata Database Machine X8M-2" (PDF). oracle.com. Retrieved September 19, 2019.
- Pedregal-Martin, Cristobal. "Exadata: Why and What".
- Spendolini, Brian (2019). Oracle Database Exadata Cloud Service: A Beginner's Guide. Amazon.com: Oracle Press. ISBN 978-1260120875.
- "Exadata Customer Success Stories". Retrieved July 16, 2018.
- Various. "Gartner Peer Insights: Oracle Exadata Database Machine". Gartner.com. Retrieved August 8, 2018.
- "Oracle Hardware and Systems Support Policies" (PDF). Retrieved March 5, 2021.
- "Oracle Exadata - A guide for decision makers" (PDF). Retrieved December 1, 2020.
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