A Thin Provisioning Method for Optimizing Space Management

A technology that automatically thins configuration and optimizes space. It is used in electrical digital data processing, instruments, input/output to record carriers, etc. It can solve the problem of difficult trade-off between data randomness and space utilization, and reduce random distribution. degree, strong practicability, and the effect of improving the overall performance

Active Publication Date: 2017-05-03
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

It is difficult to make a trade-off between data randomness and space utilization when the storage system is applied to different scenarios

Method used

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  • A Thin Provisioning Method for Optimizing Space Management
  • A Thin Provisioning Method for Optimizing Space Management
  • A Thin Provisioning Method for Optimizing Space Management

Examples

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Embodiment

[0051] Such as figure 2 Shown is a schematic diagram of the space organization of the storage system. The storage pool module 20 includes three logical disks 201, 202, and 203. The logical volume module 21 includes logical volumes 211 and 212. The logical volume 211 includes data segments 2111 and 2112. Logical volume 212 includes data segments 2121 , 2122 and 2123 . Space is allocated to logical volumes in units of segments through the storage pool, which effectively reduces storage pool space mapping metadata information and reduces the complexity of metadata operations. More importantly, the data is randomly distributed on the disk in the unit of data segment size, and the data is stored approximately sequentially in the data segment, instead of the whole disk distribution in units of data blocks in the traditional thin provisioning implementation method. Space allocation is performed in units of data blocks in the logical volume, which can effectively avoid space waste, ...

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Abstract

The invention discloses an automatic thin configuration method for optimizing space management. The realization process is as follows: forming a storage pool with multiple logical disks; forming a logical volume space across multiple logical disks; dividing the storage pool space into two levels, namely The disk space is divided into multiple data segments, and each data segment is divided into multiple data blocks; the storage pool allocates data segments to logical volumes, and each logical volume maintains the allocated data segments; when the upper layer application writes to the logical volume When storing data, the logical volume allocates space from the data segment it maintains to store the written data; when the data segment maintained by the logical volume does not have enough space for allocation, the logical volume applies to the storage pool for allocation of a new data segment. Compared with the prior art, this thin provisioning method for optimizing space management can effectively reduce the degree of random distribution of data in physical disks, and at the same time have a high utilization rate of storage space, and also take into account the storage space when allocating storage space. load balancing.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to an automatic thin provisioning method with strong practicability and optimized space management. Background technique [0002] Thin provisioning technology is a new storage space configuration management technology. Compared with traditional storage space management technology, automatic thin provisioning technology can allocate storage resources on demand according to the actual storage space requirements of upper-layer applications, instead of allocating all storage resources required by applications at one time. Thin provisioning technology solves the problem of low storage space utilization in traditional storage systems, improves storage space utilization, and reduces storage system deployment and operation costs. [0003] Thin provisioning can be implemented at different levels of granularity such as logical volumes, files, and data blocks. At present, most storage sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/0871G06F3/06
Inventor 马春
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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