extents

英 [ɪksˈtɛnts]

美 [ɪkˈstɛnts]

n.  程度; 限度; 大小; 面积; 范围
extent的复数

计算机

双语例句

• Behind the scenes, the LVM system allocates storage in equal-sized "chunks", called extents.
  在幕后，LVM系统以大小相等的“块”（称为“范围”）为单位分配存储量。
• The following illustration shows the sequence of pages used by the database engine to allocate and manage extents.
  下图显示了数据库引擎用来分配和管理区的页顺序。
• Ideally there is a large enough contiguous block of storage to cover all the extents in the partition.
  理想情况下，存在一个足够大的连续存储块来涵盖分区中的全部区段。
• Modify the entry for LogPrimaryFiles to the required value to change the number of primary extents.
  将LogPrimaryFiles条目修改为所需的值，以更改主扩展的数量。
• This feature checks the consistency and the corruption on data and extents, which is currently done through the oncheck utility.
  这个特性检查数据和区段的一致性和损坏，当前这是通过oncheck实用程序完成的。
• For maximum efficiency, frequently accessed tables should have as few extents as possible.
  为达到效率最大化，频繁访问的表区段应当越少越好。
• The second problem, of course, is that a table or an index with many highly active extents will suffer from performance degradation due to increased disk head movement and increased contention for head positioning with other objects in the database.
  当然，第二个问题是，有很多高度活跃的盘区的一个表或索引将遭遇性能降低，因为磁头移动的增加和磁头与数据库中其他对象的位置争用的增加。
• Although you can allocate additional extents, the blocks themselves are allocated separately.
  尽管你可以进行额外的扩展，但是块本身是被隔开分派的。
• Log file extents can be specified as primary or secondary.
  日志文件扩展可以指定为主扩展或次扩展。
• The use of different fibers will affect all the selection criteria, although to different extents.
  使用不同的纤维原料会影响织物的各项性能，尽管影响的程度不同。