从Oracle RAC用到的技术来了解RAC的体系结构和工作原理

Oralce RAC用到的技术：
1.ASM:Automatical Storage Management==>自动存储管理
2.CRS:Cluster Ready Service===>集群就绪服务
3.Cache Fusion==>缓存熔合
4.RAID==>Redundant Array of Independent Disk==>独立磁盘冗余阵列
5.HSI:===>High Speed Interconnect==>高速互联
6.OUI:Oracle Universal Installer
7.SSH==>RSA或者DSA
8.ASM Library Driver
9.OCR===>Oracle Cluster Registry
10.Voting Disk:
11.service_name

12.OPS:Oracle Parallel Server
参见：数据源url格式：
jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=yes)(FAILOVER=no)(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=10.13.14.15)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=10.13.14.16)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=businessdbname)))

13.FAN==>Fast Application Notification

14.OLTP==>On Line Transaction Processing

15.DSS===>Decision Support System

16.OLAP==>On Line Analysis Processing

17.BI===>Business Intelligence

18.HA===>High Availability

19.FS===>Flexible Scalability

20.AWM===>Automatic Workload Management

21.Oracle Clusterware

22.Enable Enterprise Grid

实现oracle RAC应用的硬件要求：两台或者两台以上同构的计算机+共享存储设备。

注意区分oracle RAC 和双机热备份的不同。



说明每个机器上运行一个instance,所有instance都是对等的，访问同一个数据库







参见：blog.csdn.net/huanghui22/archive/2007/03/25/1540884.aspx

【编写于 2009-01-16】