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1·A tier is composed of a number of server groups.

层由一些服务器组组成。

2·A surprisingly high number of people believe that Cloud Storage is synonymous with disk, primarily performance disk, or Tier-1 disk, and deduplication.

云存储是磁盘、高性能磁盘或Tier - 1磁盘和重复数据删除的代名词。抱有这种想法的人很多，并还达到了一个惊人的数量。

3·If the application also USES tier information or Geohash information, then these values can be used for better narrowing down the number of documents to search.

如果应用程序还使用层信息或Geohash信息，那么可以使用这些值来更好地缩小需要搜索的文档的范围。

4·With an SOA, application logic is located within the middle tier, operating with any number of technologies, residing outside the department, or even outside the company.

借助 SOA，应用程序逻辑可位于中间层，利用任意数量的技术而运作，驻留在部门甚至公司之外。

5·This represents the multi-tier application and it comprises of a number of tiers.

这代表多层应用程序，它由几个层组成。

6·The free tier is ad-supported and places caps on the number of hours that music can be streamed and the number of times a song can be listened to each month.

免费服务含广告，且每月可以播放音乐的时间，以及同一首歌可以收听的次数都受到限制。

7·Oracle allows the middle tier to set up a number of lightweight user sessions within a single database connection, each of which uniquely identifies a connected user.

Oracle允许中间层在单个数据库连接中设置许多轻量级用户会话，每个会话都惟一地对应于一个连接用户。

8·This can reduce response times on the middle-tier server, and also improve the scalability of the system by reducing the number of connections and calls to the Library server.

这可以在中间层服务器上减少响应时间，而且由于减少了对Library Server的连接和调用数量，这也提高了系统的可伸缩性。

9·Note that in the 2-tier space, where Oracle holds a slim 5% lead, Oracle used twice the number of CPUs that DB2 did in order to obtain only 5% more performance.

注意，在2 -层领域，Oracle领先5%左右，oracle比db2多使用了一倍的CPU才获得5%的性能优势。

10·Many three-tier web apps do really badly when they have to create a huge number of sessions all at once.

许多三层的Web应用对并发的大量会话往往无能为力。