Backup method supporting multi-driver concurrent writing of tape library
A tape library and multi-drive technology, applied in the direction of response error generation, data processing input/output process, redundancy in operation, data error detection, etc., can solve problems affecting backup efficiency and long backup window time , to achieve the effect of saving material resources and manpower, breaking through the bottleneck of writing performance, and improving writing performance
Active Publication Date: 2018-06-15
EISOO SOFTWARE
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Problems solved by technology
Migrating a large amount of data to tape will be limited by the drive performance bottleneck of the tape library, resulting in a very long backup window, affecting backup efficiency, and preventing users from performing data protection faster and in a more timely manner
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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0049] The operating system used in this instance is 64-bit RedHat Enterprise 5, and the data uses 10 files with a file size of 1 GB. The tape library adopts ULT3580-TD5, which contains 4 tape library drives and 4 tapes, and the writable positions of the tapes are all 0. The size of the data group is set to a maximum of 64MB, and when the remaining data source is less than 64MB, it is allowed to be less than 64MB.
[0050] Such as Figure 1-4 As shown, t...
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The invention relates to a backup method supporting multi-driver concurrent writing of a tape library. The method comprises the following steps of (1) initializing tape library operation; (2) according to a tape library driver number selected in the step (1), generating a same number of data writing executors, wherein each data writing executor corresponds to a tape library driver; (3) processingdata, dividing the data into data groups and performing writing; (4) continuing to execute the step (3) until the data transmitted from a data source is all received and processed; and (5) ending thebackup, and releasing resources. Compared with the prior art, the method has the advantages that the data protection window time can be greatly shortened and the performance of migrating the data to tapes can be improved.
Description
technical field [0001] The invention relates to the field of data storage, in particular to a backup method supporting multi-drive concurrent writing of a tape library. Background technique [0002] As computers continue to evolve, so does data protection. The accumulation of a large amount of data increases the pressure on data storage. However, due to compliance and other factors, even if some data will not be used for a long time, the data still needs to be protected. It is a better way to migrate these data to tape. [0003] The storage performance of a single drive in a tape library is limited by hardware conditions, and its performance is extremely limited. Migrating a large amount of data to tape will be limited by the drive performance bottleneck of the tape library, resulting in a long backup window, affecting backup efficiency, and preventing users from performing data protection faster and in a more timely manner. If there is a way to distribute data to multip...
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IPC IPC(8): G06F3/06G06F11/14
CPCG06F3/0613G06F3/0631G06F3/0655G06F11/1448
Inventor 吴植民
Owner EISOO SOFTWARE