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公开(公告)号：US4993030A
公开(公告)日：1991-02-12
申请号：US185179
申请日：1988-04-22
IPC分类号： G06F3/06 , G06F9/50 , G06F11/00 , G06F11/10 , G06F11/16 , G06F11/20 , G06F12/00 , G06F12/08 , G06F15/16 , G06F17/30
CPC分类号： G06F11/2089 , G06F11/1008 , G06F11/201 , G06F11/2094 , G06F12/08 , G06F15/161 , G06F17/30067 , G06F9/50 , G06F11/2056 , Y10S707/99953
摘要： A file system for managing data files for access by a plurality of users of a data processing system that includes internal storage for buffering, external storage, and a file user interface by which the plurality of users request access to data files. A first level, coupled to the file user interface in the internal storage allocates the internal storage for temporary storage of data to be accessed by the plurality of users, and generates requests for transactions with external storage in support of such allocations. A second level is coupled to the first level and the external storage and responds to the request for transactions with the external storage for managing the transactions for storage of data to, and retreival of data from, the external storage. The second level defines a plurality of physical storage classes which are characterized by pre-specified parameters that allocate data files subject of transactions to locations in external memory. In response to requests for transactions, the second level identifies one of the plurality of storage classes assigned to the data file subject of the transaction and carries out the transaction with the appropriate locations in external memory. At least one of the plurality of storage classes provides for utilization of a plurality of access paths in parallel for transactions involving data files assigned to such storage class. Further, at least one parameter pre-specified for storage classes identifies a level of reliability desired for the subject data files.
摘要翻译： 一种用于管理数据文件的文件系统，用于由数据处理系统的多个用户访问，该数据处理系统包括用于缓冲的内部存储器，外部存储器和多个用户请求访问数据文件的文件用户界面。 耦合到内部存储器中的文件用户界面的第一级别分配内部存储器以临时存储由多个用户访问的数据，并且生成用于支持这种分配的与外部存储器的事务的请求。 第二级耦合到第一级和外部存储器，并且响应于与外部存储器进行事务的请求，用于管理用于存储数据的事务以及从外部存储器返回数据。 第二级定义了多个物理存储类别，其特征在于预先指定的参数，将事务对象分配给外部存储器中的位置。 响应于事务请求，第二级识别分配给事务的数据文件主体的多个存储类中的一个，并且在外部存储器中执行与适当位置的事务。 多个存储类别中的至少一个提供了并行地涉及涉及分配给这种存储类别的数据文件的事务的多个访问路径的使用。 此外，为存储类别预先规定的至少一个参数标识了对象数据文件所期望的可靠性水平。
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公开(公告)号：US5553285A
公开(公告)日：1996-09-03
申请号：US489267
申请日：1995-06-09
IPC分类号： G06F3/06 , G06F9/50 , G06F11/00 , G06F11/10 , G06F11/16 , G06F11/20 , G06F12/00 , G06F12/08 , G06F15/16 , G06F17/30 , G06F13/00 , G11C8/00
CPC分类号： G06F11/2089 , G06F11/1008 , G06F11/201 , G06F11/2094 , G06F12/08 , G06F15/161 , G06F17/30067 , G06F9/50 , G06F11/2056 , Y10S707/99953
摘要： A file system for managing data files for access by a plurality of users of a data processing system that includes internal storage for buffering, external storage, and a file user interface by which the plurality of users request access to data files. A first level, coupled to the file user interface in the internal storage allocates the internal storage for temporary storage of data to be accessed by the plurality of users, and generates requests for transactions with external storage in support of such allocations. A second level is coupled to the first level and the external storage and responds to the request for transactions with the external storage for managing the transactions for storage of data to, and retrieval of data from, the external storage. The second level defines a plurality of physical storage classes which are characterized by pre-specified parameters that allocate data files subject of transactions to locations in external memory. In response to requests for transactions, the second level identifies one of the plurality of storage classes assigned to the data file subject of the transaction and carries out the transaction with the appropriate locations in external memory. At least one of the plurality of storage classes provides for utilization of a plurality of access paths in parallel for transactions involving data files assigned to such storage class. Further, at least one parameter pre-specified for storage classes identifies a level of reliability desired for the subject data files.
摘要翻译： 一种用于管理数据文件的文件系统，用于由数据处理系统的多个用户访问，该数据处理系统包括用于缓冲的内部存储器，外部存储器和多个用户请求访问数据文件的文件用户界面。 耦合到内部存储器中的文件用户界面的第一级别分配内部存储器以临时存储由多个用户访问的数据，并且生成用于支持这种分配的与外部存储器的事务的请求。 第二级耦合到第一级和外部存储器，并且响应于与外部存储器的事务的请求，用于管理用于存储数据的事务和从外部存储器检索数据。 第二级定义了多个物理存储类别，其特征在于预先指定的参数，将事务对象分配给外部存储器中的位置。 响应于事务请求，第二级识别分配给事务的数据文件主体的多个存储类中的一个，并且在外部存储器中执行与适当位置的事务。 多个存储类别中的至少一个提供了并行地涉及涉及分配给这种存储类别的数据文件的事务的多个访问路径的使用。 此外，为存储类别预先规定的至少一个参数标识了对象数据文件所期望的可靠性水平。
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