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

• In2008, a majority of safety barrier and isolator suppliers see a declining performance to different extents.
  2008年，大部分安全栅和隔离器供应商业绩出现了不同程度的下滑。
• 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。
• 10 primary extents and10 secondary extents for the log specified with the-lp10 and-ls10 flags.
  使用-lp10和-ls10标志为日志指定10个主扩展和10个次扩展。
• 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。
• If tables have too many extents, it is very likely that those extents are interleaved.
  如果表拥有太多区段，那些区段就很可能是交错的。
• 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。
• Use oncheck-pt to check on the number of partition extents after defragmentation.
  可在碎片整理完成后，利用oncheck-pt来检查分区区段的数量。
• There are two problems with tables that have lots of extents, or at least there used to be.
  那些有很多盘区、或者至少曾经有过的表，存在两个问题。
• 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。
• Secondary log file extents are allocated dynamically by the queue manager when the primary files are exhausted.
  次日志文件扩展由队列管理器在主文件耗尽的情况下动态分配。