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.
Extreme System Scalability and Growth with Elastic
Configurations
The Exadata Database Machine uses a scale-out architecture for both database
servers and storage servers. As workloads grow, database CPUs, storage, and
networking can be added to an Exadata Database Machine to scale without
bottlenecks. The architecture expands from small to extremely large
configurations to accommodate workloads of any size.
In Exadata X9M, a high-bandwidth low-latency active-active 100 Gb/sec 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. External connectivity to the Exadata
Database Machine is via standard 10 Gb/sec or 25 Gb/sec Ethernet.
Exadata Database Machine is the most versatile database platform. The
Exadata X9M-2 Database Machine uses powerful database servers, each with
two 32-core x86 processors and 512 GB of memory (expandable up to 2 TB).
Exadata also uses scale-out, intelligent storage servers available in two
configurations – High Capacity (HC) or Extreme Flash (EF):
• HC Storage Servers have four NVMe PCI Flash cards each with 6.4 TB
(raw) Exadata Smart Flash Cache and twelve 18 TB 7,200 RPM disks.
• EF Storage Servers have an all-flash configuration with eight NVMe PCI
Flash drives, each with 6.4 TB (raw) storage capacity.
• Exadata X9M HC and EF Storage include persistent memory, further
enhancing performance. Each server is populated with twelve 128 GB
Intel® Optane™ Persistent Memory modules as a new caching tier
between DRAM and flash.
The minimal configuration of an Exadata Database Machine consists of two
database servers and three storage servers, which can be elastically expanded
by adding more database and/or storage servers within the same rack.
Elastic configurations provide a flexible and efficient mechanism to meet any
size business need.
Key Benefits
Pre-configured, pre-tested
system optimized for all
database applications
Uncompressed I/O
bandwidth of up to 1TB/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-2 racks or Exadata X9M
Storage Expansion Racks. Up
to 12 racks can be connected
by simply adding RoCE
cables and internal switches.
Larger configurations can be
built with external RoCE
switches
评论