The mediation flow may simply log that a request was passed from requester to provider, block requests from unknown or unauthorized requesters, or block requests based on provider availability.
中介流可以简单地记录某个请求已从请求者传递到了提供者，阻止来自未知或未经授权的请求者的请求，或者基于提供者可用性来阻止请求。
Other versions of the df tool (notably Solaris) report the bare block and file availability information by default.
其他版本的df工具(特别是Solaris)，缺省情况下将报告空块和文件可用性信息。
High availability with the Distributed Replicated Block Device (M. Tim Jones, developerworks, August 2010) provides an introduction to one method for data mirroring.
Distributed Replicated Block Device的高可用性(m . Tim Jones, developerworks, 2010年8月)讲述了一种数据镜像方法。
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