在执行字典翻译时有一些CPU开销，但是在磁盘IO效率上也有一个提高，在每个IO单元更多数据可被检索。
There is some CPU overhead in performing the dictionary translation, however there is also an improvement in disk IO efficiency as more data can be retrieved per IO unit.
如果您的数据仅位于几个轴，那么使用多个逻辑单元号(LUN)或者物理磁盘又有什么实际意义呢？
If your data resides on only a few spindles, what is the point exactly of having multiple logical unit Numbers (LUNs) or physical disks?
如果数据仅位于几个轴，那么使用多个逻辑单元号(LUN)或者物理磁盘又有什么实际意义呢？
If your data resides on only a few spindles, what is the purpose of having multiple logical unit Numbers (LUNs) or physical disks?
磁盘组件是一个或多个被分配到数据库服务器的磁盘空间单元的集合。
Disk component is a collection of one or more units of disk space assigned to the database server.
区块是用于数据库服务器数据存储的最大物理磁盘单元。
A chunk is the largest unit of physical disk dedicated to database server data storage.
AmazonSimpleDB存储较小型的数据单元，使用比较低密度的磁盘，为数据访问速度而优化。
Amazon SimpleDB stores smaller bits of data and USES less dense drives that are optimized for data access speed.
探讨了一种通过低级编程直接读写软磁盘的基本数据单元修复损坏的软磁盘的方法。
This paper discusses a method repairing destroyed floppy disk through low-level programming that accesses directly the basic data units.
探讨了一种通过低级编程直接读写软磁盘的基本数据单元修复损坏的软磁盘的方法。
This paper discusses a method repairing destroyed floppy disk through low-level programming that accesses directly the basic data units.
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