PVFS sends a request to the meta-data server (steps 1 and 2 in Figure 4), which informs the requesting node about the location of the file among the various I/O nodes.
PVFS向元数据服务器发送一个请求（图4中的步骤1、2），这会通知请求节点有关文件在各个I/O 节点上的位置的信息。
It also offers direct access to Information Server meta data.
它还提供了对Informationserver元数据的直接访问。
It also offers direct access to Information Server meta data.
它还提供了对Informationserver元数据的直接访问。
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