Focus On Oracle

Installing, Backup & Recovery, Performance Tuning,
Troubleshooting, Upgrading, Patching

Oracle Engineered System


当前位置: 首页 » 技术文章 » Exadata

Exadata COD

Capacity-on-Demand Licensing (CoD) - CoD allows the customer to license the Oracle software incrementally instead of licensing the entire Exadata configuration. DBMS licenses can now match the enabled Exadata hardware, and can be purchased later as needed for growth instead of a large upfront expenditure. In terms of minimums for CoD licensing, a minimum of 40% of the cores in a server must be licensed (14 cores per server, or eight cores per 1/8th rack).

CoD就是用户可以根据需求动态去购买需要的资源,适用于X4-2, X4-8及以后的系统,X4-2 1/8配不支持,但是X5-2和X6-2 1/8配支持。在X5-2里,每台计算节点至少需要激活14core,每台存储节点至少需要激活8core。在X5-2时,1/8和1/4的硬件资源配置是一样的,只是激活的核心和磁盘容量不同,从X6-2开始,1/8和1/4的硬件是不同的,表现在存储节点磁盘数量和闪存盘的数量减半。

1/8,1/4,半配,满配和弹性(elastic)配置。弹性配置(计算节点和存储节点可以定制)在安装配置时的脚本也有变化。


X5-2新的特点

All-Flash Exadata Storage Server

Flexible 'Elastic' Configuration Options

Capacity-on-Demand Licensing (CoD)

Support for Virtualization with Oracle Virtual Machine (OVM)


X5-2开始,Exadata的image的版本为12.1.2.1,新增了下面的功能
Exafusion Direct to Wire OLTP Protocol

Faster InfiniBand software drivers which allows the database to bypass OS network stack and make calls directly to the InfiniBand hardware.  Exafusion is supported back to the X3-2 and requires the GI/DB 12.1.0.2 release as well.

Dual-Format Columnar Flash Cache

During scans of Hybrid Columnar Compressed (HCC) data, the HCC data is automatically transformed into pure columnar format as it is loaded into flashcache.  It’s automatic and transparent performance boost, and also requires GI/DB 12.1.0.2.
Exadata-specific AWR Enhancements

AWR reports now include Compute and Storage Configurations, Health, and I/O Analysis metrics specific to the Exadata platform.
Exadata OVM Enhancements

High speed InfiniBand SR-IOV supports full Exadata features with performance similar to non-virtualized (supports both 11gR2 and 12c GI/DB versions).
New Database Node Monitoring and Alerts

New DBMCLI utility for monitoring and managing the DB Compute Nodes (very similar to CELLCLI and services for Storage Servers).  The new service (dbserverd) replaces exadata_mon_hw_asr.pl and introduces a Management Server (msStatus) and a Restart Server (rsStatus) as well as new user accounts (dbadmin, dbmmonitor).
Linux 6 Support

On both DB Compute and Storage Servers (except for dom0 in OVM config).  This also has impacts on default files systems (now ext4 for new installs), startups of OHA and TFA, and other Linux commands/utilities.


Reference

http://docs.oracle.com/cd/E80920_01/DBMLI/exadata-capacity-on-demand.htm#DBMLI147

http://www.oracle.com/us/corporate/events/datacenter/index.html

https://www.oracle.com/corporate/pressrelease/data-center-012115.html



关键词:exadata 

相关文章

Oracle ZDLRA (Zero Data Lost Recovery Appliance) FAQ
Oracle ZDLRA (Zero Data Lost Recovery Appliance) Features
Oracle Database 18c On Exadata
Migrate Oracle Database on AIX to Exadata
ExaWatcher Charts
qperf & iperf
How to config IB network listener
Recreate quorum disk on X6-2
How to install/deploy Exadata
Exadata的特性
Exadata的扩展和级联
Exadata Diagnosing tools

联系我们

韩朝阳



    Phone:186-9589-1286

    E-mail:ohsdba@qq.com

    微  信: ohsdba


电话(186-9589-1286)

QQ(375349564)

微信(ohsdba)


常用链接

Oracle Database Upgrade

Oracle

eDelivery
My Oracle Support

Exadata 12.1 Document

Exadata 12.2 Document

Oracle 11gR2 Document

Oracle 12cR1 Document

Oracle 12cR2 Document

GoldenGate 12c

Oracle Fusion Middleware

Mysql Document

PostgreSQL

Python

github

sourceforge



Top
Cell186-9589-1286
QQ 375349564
E-mail ohsdba@qq.com