Oracle Exadata X8-2 is a purpose-built engineered system designed to run Oracle Database workloads with extreme performance, high availability, and simplified management. It combines database servers, storage servers (Exadata Storage Servers), RDMA networking, and Oracle software optimizations to deliver faster OLTP, analytic queries, mixed workload consolidation, and cloud-ready features.
The X8-2 has been succeeded by:
However, the X8-2 remains a robust, cost-effective platform for secondary sites, dev/test, and mid-tier production due to mature drivers and wide availability on the secondary market.
| Workload | X8M (X8-2) vs Previous Gen (X7) | |----------|----------------------------------| | OLTP I/O latency | ~19 µs (down from ~1 ms) | | Write latency | ~27 µs (with PMEM write-back) | | SQL throughput (OLTP) | Up to 2.5x higher | | Analytics scans | 4x faster (due to PMEM + flash) | | Log file sync waits | Nearly eliminated |
The Oracle Exadata X8-2 delivers a balanced mix of compute, flash, disk, and networking. Its hallmark features—Smart Scan offload, PMEM for redo acceleration, and 100Gb RoCE fabric—make it a formidable platform for mission-critical Oracle workloads. While newer generations exist, the X8-2 continues to provide enterprise-grade performance and reliability.
For exact configuration options and official support timelines, consult Oracle’s Hardware Support Policies or your Oracle representative.
The Oracle Exadata X8 series represents a significant leap in database performance, integrating specialized hardware with intelligent software to optimize Oracle Database workloads. The generation is split into the standard X8-2 (InfiniBand-based) and the X8M-2 (introducing RDMA over Converged Ethernet, or RoCE). 1. Core Hardware Specifications
Both the X8-2 and X8M-2 utilize powerful 2-socket database servers designed for high-density compute.
Processors: 2 x Intel® Xeon® Platinum 8260 Processors (24 cores each, 48 cores total per server). oracle exadata x82 datasheet
Memory: Standard 384 GB RAM, expandable up to 1.5 TB per database server. Internal Storage: 4 x 1.2 TB hot-swappable boot drives. Networking: X8-2: Uses 40 Gb/s InfiniBand for the internal fabric. X8M-2: Uses 100 Gb/s RoCE (RDMA over Converged Ethernet). 2. Storage Server Options
Exadata offers three storage server tiers to balance performance and cost. Storage Tier Components per Server Extreme Flash (EF) 8 x 6.4 TB NVMe Flash Drives (51.2 TB raw) Ultra-low latency, high-IOPS workloads. High Capacity (HC) 12 x 14 TB SAS Disks + 4 x 6.4 TB Flash Cards Balanced performance and massive capacity. Extended (XT) 12 x 14 TB SAS Disks (No Flash) Low-cost storage for cold or historical data. Exadata Database Machine X8M-2 - Oracle
The Oracle Exadata Database Machine X8-2 is an engineered system designed specifically to run the Oracle Database with high performance, scalability, and availability. It integrates hardware and software, including specialized algorithms that offload database processing to intelligent storage. System Architecture & Key Features
The X8-2 utilizes a scale-out architecture comprising database servers, intelligent storage servers, and a high-speed internal fabric.
Internal Fabric: All components are connected via a 40 Gb/second (QDR) InfiniBand network.
Elastic Scalability: Users can start with a minimal configuration (2 database servers and 3 storage servers) and expand elastically by adding more servers to the same rack.
High Availability: The system is built with complete redundancy for all components, including power supplies, fans, and network paths. Database Server Specifications
Each X8-2 database server is a 1U rack-mount system optimized for compute density. Specification Processors 2x 24-core Intel® Xeon® Platinum 8260 (2.4 GHz) Memory 384 GB standard, expandable to 768 GB or 1.5 TB Storage 4x 1.2 TB hot-swappable hard disks (expandable to 8) Networking Oracle Exadata X8-2 — Overview and Key Capabilities
2x InfiniBand (40 Gb/s) and various 10/25 GbE ports for client/backup Storage Server Options
Exadata X8-2 offers three storage server types to match different workload requirements. Oracle Server X8-2 Data Sheet
The Oracle Exadata Database Machine X8-2 is an engineered system designed for high-performance database workloads, combining scale-out compute, intelligent storage, and a high-speed network fabric. Key features from the Oracle Exadata X8-2 Data Sheet include: Core Processing & Memory
Database Servers: Each rack can contain 2 to 19 database servers, with each server featuring dual 24-core Intel Xeon Platinum 8260 processors.
Compute Capacity: A full rack supports up to 912 CPU cores and 28.5 TB of memory dedicated to database processing.
Memory Scalability: Standard configurations start at 384 GB RAM per server, expandable up to 1.5 TB using Oracle Server X8-2 expansion kits. Intelligent Storage Options
The X8-2 introduced three distinct storage server tiers to optimize cost and performance:
High Capacity (HC): Includes twelve 14 TB SAS disks (168 TB raw) and 25.6 TB of NVMe Flash for caching. X9-2 (2021) – Intel Ice Lake processors, PCIe 4
Extreme Flash (EF): Features eight 6.4 TB NVMe Flash drives for ultra-low latency.
Extended (XT): A lower-cost tier for infrequently accessed data, offering twelve 14 TB disks without Flash or storage software for massive capacity. Networking & Performance
Internal Fabric: Uses a 40 Gb/second (QDR) InfiniBand network to connect all servers and storage components.
I/O Throughput: Delivers up to 350 GB/second of uncompressed I/O bandwidth and 4.8 million 8K read IOPS per full rack.
Smart Features: Includes Exadata Smart Scan to offload SQL operations to storage and Hybrid Columnar Compression (HCC), which typically provides 10X–15X compression ratios. High Availability & Scalability
Redundancy: Built with complete hardware redundancy, including hot-swappable drives and redundant power/cooling.
Multi-Rack Scaling: Up to 18 racks can be connected via InfiniBand to scale compute and storage linearly.
For additional details on expanding storage, you can refer to the Oracle Exadata Storage Expansion Rack X8-2 documentation. Oracle Exadata Database Machine X8-8 Data Sheet