Generating enumerated information in which a plurality of files are enumerated in a sequential medium
AssigneeInternational Business Machines Corporation
InventorsTohru Hasegawa, Takamasa Hirata, Naoki Imai, Masanori Kamiya, Yutaka Oishi
Life of this patent
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Abstract
A mechanism is provided for generating enumerated information in which a plurality of files is enumerated except entirely-invalidated files on a sequential medium. Management information for managing locations where the plurality of files on the sequential medium are recorded is acquired from the sequential medium. The enumerated information in which the plurality of files are enumerated is generated in an order according to the locations where the plurality of files are recorded on the basis of the acquired management information.
Claims12
A method, in a data processing system, for generating enumerated information in which a plurality of files are enumerated except entirely-invalidated files on a sequential medium, the method comprising:
- responsive to a mounting of the sequential medium in the data processing system, identifying an enumeration method from a plurality of different enumeration methods for enumerating the plurality of files on the sequential medium;
- storing the identified enumeration method for use in generating the enumerated information in which the plurality of files are enumerated;
- acquiring management information for managing locations where the plurality of files on the sequential medium are recorded from the sequential medium;
- and
- generating the enumerated information in which the plurality of files are enumerated in an order according to the locations where the plurality of files are recorded on the basis of the acquired management information and using the identified enumeration method, wherein at least one file in the plurality of files is a fragmented file existing in at least two locations and wherein each file in the plurality of files is recorded on the basis of the identified enumeration method identifying a root directory.
A computer program product for generating enumerated information in which a plurality of files are enumerated except entirely-invalidated files on a sequential medium comprising a computer readable medium having a computer readable program stored therein, wherein the computer readable program, when executed on a computing device, causes the computing device to:
- responsive to a mounting of the sequential medium in the data processing system, identify an enumeration method from a plurality of different enumeration methods for enumerating the plurality of files on the sequential medium;
- store the identified enumeration method for use in generating the enumerated information in which the plurality of files are enumerated;
- acquire management information for managing locations where the plurality of files on the sequential medium are recorded from the sequential medium;
- and
- generate the enumerated information in which the plurality of files are enumerated in an order according to the locations where the plurality of files are recorded on the basis of the management information and using the identified enumeration method, wherein at least one file in the plurality of files is a fragmented file existing in at least two locations and wherein each file in the plurality of files is recorded on the basis of the identified enumeration method identifying a root directory.
A system for generating enumerated information in which a plurality of files are enumerated except entirely-invalidated files on a sequential medium, the system comprising:
- a processor;
- and
- a memory coupled to the processor, wherein the memory comprises instructions which, when executed by the processor, cause the processor to:
- responsive to a mounting of the sequential medium in the data processing system, identify an enumeration method from a plurality of different enumeration methods for enumerating the plurality of files on the sequential medium;
- store the identified enumeration method for use in generating the enumerated information in which the plurality of files are enumerated;
- acquire management information for managing locations where the plurality of files on the sequential medium are recorded from the sequential medium;
- and
- generate the enumerated information in which the plurality of files are enumerated in an order according to the locations where the plurality of files are recorded on the basis of the management information and using the identified enumeration method, wherein at least one file in the plurality of files is a fragmented file existing in at least two locations and wherein each file in the plurality of files is recorded on the basis of a the identified enumeration method identifying root directory.
Dependencies are inferred from the claim text.