Method and device for repeatedly using magnetic tape
A tape, storage location technology, applied in special data processing applications, memory address/allocation/relocation, instruments, etc., can solve the problem of low efficiency of tape use
Inactive Publication Date: 2013-02-13
CHINA DIGITAL VIDEO BEIJING
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Problems solved by technology
[0005] In view of this, the embodiment of the present invention provides a method and device for reusing magnetic tape to solve the problem of low efficiency of magnetic tape in the prior art
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Embodiment Construction
[0019] In order to effectively improve the efficiency of tape reuse, the embodiment of the present invention provides a tape reuse method, the method includes: obtaining metadata information of each valid file in the source tape stored in the storage system, determining the The occupancy parameter of the storage space occupied by the valid files. When the occupancy parameter of the storage space is less than the set threshold, each valid file in the source tape is copied to the target tape to release the storage space of the source tape. In the embodiment of the present invention, since the judgment is made according to the occupancy parameters of the storage space occupied by valid files in the source tape and the set threshold conditions, when the storage space occupied by valid files in the tape is small, there are fewer valid files , you can directly copy the valid files in the source tape to the target tape to release the storage space of the source tape, so that the sourc...
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The invention discloses a method and a device for repeatedly using a magnetic tape, which are used for solving the problem that the magnetic tape is low in service efficiency in the prior art. The method comprises the following steps of: determining an occupied parameter of a storage space, which is occupied by effective files in a source magnetic tape; and when the occupied parameter of the storage space is smaller than a set threshold, copying each effective file in the source magnetic tape to a target magnetic tape, and releasing the storage space of the source magnetic tape. In the method, because judgment is carried out according to the occupied parameter of the storage space, which is occupied by the effective files in the source magnetic tape, and the set threshold condition, when the storage space which is occupied by the effective files in the magnetic tape is small, namely a fewer effective files are present, the effective files in the source magnetic tape can be directly copied to the target magnetic tape, and the storage space of the source magnetic tape is released. Therefore, the source magnetic tape can be repeatedly utilized as soon as possible.
Description
technical field [0001] The invention relates to the technical field of magnetic tape storage, in particular to a method and device for reusing magnetic tape. Background technique [0002] Massive media resources need to be managed in broadcasting and television systems. For the audio and video resources in the media resources, due to the large amount of data, if the disk is used, it will not be able to meet the demand for storing this large amount of data, and because the cost of the disk is high, so its Economical and practical is also not high. Therefore, tapes are generally used to store audio and video resources in broadcast television systems. [0003] Magnetic tape has the characteristics of large storage capacity, fast reading and writing speed, and safety and reliability. However, the magnetic tape adopts linear reading and writing. When it is necessary to add files to the magnetic tape, it can only be appended at the end of the magnetic tape. If data is written to...
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IPC IPC(8): G06F12/02G06F17/30
Inventor 闫宁冯波杨群张蕲龙
Owner CHINA DIGITAL VIDEO BEIJING