To support a coordinated access to a shared memory of a file system using an automatic alignment of a protocol for a parallel file access and a meta data management

摘要

Embodiments of the invention relate to a support a coordinated access to a commonly used plates memory part of the system of a file system using an automatic alignment of a protocol for a parallel file access and a meta data management object on a base position, active file - server in the cluster have a comparable access to shared data of the file system. A file - server (of a plurality of servers in the cluster) receives a client - request, with the use of a protocol for a parallel file access to access to a file by the file system in the memory part of the system is stored. When the file system, a file - server has selected as a metadata - manager of the file is to be used for the file - server coordinated with the aid of the selected file - server the access to the metadata of the file. When the file system does not have a file - server for a function as meta-data - manager of the file has selected, selects the file system, the file - server, which has received the request, as meta-data - manager for the file, to a request is received is closed, the operation of a file. Thereafter, the file - server for the file an operation of a file opening request on the file - server by which, for a function has been selected as meta-data - manager. The data file - server then opens the file and generates a file identifier includes the data file. Subsequently, the coded file - server in the file identifier includes a file - server - identification of the file - server, the form of a of the metadata - manager of the file has been selected, so that the file - server of the file system can recognize - which file server of the metadata - manager of the file is. Thereafter, the data file - server the file identifier includes back to the client, to provide an input / output for the file.