| 摘要 |
A distributed file system for managing access to data, comprises: a plurality of storage nodes 2-4, each node including a memory arranged for storing data items e.g. web pages and a memory management unit arranged for execution on one of a plurality of different operating systems (UNIX, LINUX, WINDOWS NT) and arranged for providing access to a data item to a client node 12, 13; a master node 7, 8 arranged for storing a metadata database including a plurality of metadata, each metadata defining a mapping between a data item and one or more storage nodes 2-4 containing the data item; and a client node 12, 13 arranged for requesting metadata related to a data item from the master node 7, 8 and accessing the data item from one or more storage nodes 2-4 containing the item using the requested metadata. A client management unit 15 may provide a standard interface (Application Programming Interface - API) for the distributed file system such that applications executing in user space can utilise the client management unit in the same/similar way to use of the local file system of the operating system. |
