From now on……

    序

    突然想到，不能再这样虚度下去了。于是决定在空间里面记录下每天的学习收获，同时对自己也是一种督促。我不知道我能够坚持多久，我只是希望每天进步一点点。

为了明天……

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Family Ablum,USA

It is very nice of you.      Don't mention it.

I appreciate it.                I am glad that I could help.

Thanks anyway.            It was nothing.

                                         My pleasure.

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ORACLE

Oracle Real Application Clusters 10g (RAC) enable a single database to run across multiple clustered nodes in a grid, pooling the processing resources of severalstandard machines.

Oracle实时应用集群（RAC，Oracle Real Application Clusters）可以使一个数据库运行在网格中多个集群节点上，即把多个计算机的处理能力作为池。

The Oracle Automatic Storage Management (ASM) feature of Oracle Database 10g provides a virtualization layer between the database and storage so that multiple disks can be treated as a single disk group and disks can be dynamically added or removed while keeping databases online. Existing data will automatically be spread across available disks for performance and utilization optimization.In Oracle 10g Release 2, ASM supports multiple databases, which could be at different software version levels, accessing the same storage pool.

Oracle 数据库 10g的自动存储管理功能（ASM，Automatic Storage Management）在数据库与存储硬件之间建立了一个虚拟层，多个磁盘可以被视为一个磁盘组，而且磁盘可以在保持数据库联机的状态下动态地添加或移除。现有的数据自动的在可用磁盘间分布，以便获得性能和利用效率的优化。在Oracle 10g R2中的ASM支持不同版本的数据库使用同一个存储池。

The Grid Control feature of Oracle Enterprise Manager 10g provides a single console to manage multiple systems together as a logical group.Grid Control manages provisioning of nodes in the grid with the appropriate full stack of softwareand enables configurations and security settings to be maintained centrally for groups of systems.

Oracle 企业管理器 10g（Oracle Enterprise Manager，OEM）的网格控制功能通过一个控制台将多个系统作为一个逻辑组管理。 网格控制功能可以管理网格内各节点的资源供给，还能实现多组系统配置和安全设置的集中维护。