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Construction system and construction method for metadata

A construction method and metadata technology, applied in the storage field, can solve the problem of lack of flexibility in metadata storage, achieve the effect of excellent performance and increased flexibility

Active Publication Date: 2015-06-03
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a system and method for constructing metadata to solve the problem of lack of flexibility in metadata storage

Method used

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  • Construction system and construction method for metadata
  • Construction system and construction method for metadata
  • Construction system and construction method for metadata

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some 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 belong to the protection scope of the present invention.

[0021] refer to figure 1 , figure 1 is a flow chart of the method for constructing metadata in the first embodiment of the present invention. like figure 1 As shown, the construction method disclosed in this embodiment includes the following steps:

[0022] Step 101: Receive a request for reading data or writing data.

[0023] Step 102: Query the index area of ​​the metadata according to the logical address in the request, and determine whe...

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Abstract

Disclosed are a system for constructing metadata and a method therefor. The method comprises the following steps: receiving a request for reading data or writing data (101); querying an index area of metadata according to a logical address in the request, and judging whether the logical address exists in the index area of the metadata (102); if so, querying a mapping relationship between the logical address and a physical address in a mapping relationship area of logical addresses and physical addresses, acquiring the physical address corresponding to the logical address, and reading data or writing data according to the physical address (103); otherwise, when the request is a data reading request, all the read data being zero (105); and when the request is a data writing request, allocating a physical address for the logical address, and writing the data according to the physical address (106). The method and system can meet the requirements for querying metadata under various conditions, and support setting different index types according to different application scenarios to enable the performance to be better, thereby increasing the flexibility of the metadata.

Description

technical field [0001] The present invention relates to the field of storage technology, in particular to a system and method for constructing metadata. Background technique [0002] With the continuous development of information science and technology, the wide application of the Internet, and the continuous popularization of cloud computing, the amount of stored data has increased rapidly, and higher requirements have been put forward for the reasonable allocation and utilization of storage system resources. In the prior art, automatic thin provisioning technology (Thin Provisioning, TP) gathers all physical storage space into a thin pool for unified management, and through the thin LUN (Logical Unit Number, Logical Unit Number) created on the thin pool Obtain physical storage space, thin LUN, namely thin volume, also known as Thin LUN. The use of automatic thin provisioning technology can simplify the configuration management of storage resources and save physical storag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/06
CPCG06F12/10
Inventor 代海军
Owner HUAWEI TECH CO LTD
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