Storage space distribution method and system for simplified volume and related components
A space allocation and storage space technology, applied in memory systems, instruments, electrical digital data processing, etc., can solve problems such as data read and write performance degradation, and achieve the effect of improving continuity
Inactive Publication Date: 2019-05-10
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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[0003] In the case of storing multiple thin volumes in a pool, since the space of each volume is allocated while using it, the actual space distribution of each volume in the pool is not continuous, but interleaved with each other. However, the interleaved data storage method will lead to a decrease in data read and write performance
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[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0035] see below figure 1 , figure 1 It is a flow chart of a method for allocating storage space of a thin volume provided in the embodiment of the present application.
[0036] Specific steps can include:
[0037] S101: When receiving the space application information corresponding to the target thin volume, acquire the historical space allocation...
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The invention discloses a simplified volume storage space distribution method, which comprises the following steps: when space application information corresponding to a target simplified volume is received, obtaining a historical space distribution amount of the target simplified volume in a target time period, and determining a correction parameter according to the historical space distributionamount; determining a default space allocation quantity corresponding to the target reduced volume, and correcting the default space allocation quantity according to the correction parameter to obtaina current space allocation quantity; and allocating the storage space with the current space allocation amount to the target reduced volume. According to the method, the space distribution continuityof the simplified volume in the storage pool can be improved, and the read-write performance of the storage system is improved. The invention also discloses a storage space distribution system of thesimplified volume, a computer readable storage medium and electronic equipment, which have the above beneficial effects.
Description
technical field [0001] The present application relates to the technical field of data storage, and in particular to a thin volume storage space allocation method and system, a computer-readable storage medium and an electronic device. Background technique [0002] A self-thinning volume is a volume management mode commonly used in storage systems. Its main feature is that after a volume is created, it does not pre-allocate all the space of the volume, but uses the method of allocation while using it, that is, a self-thinning volume. The actual occupied space is the size of the data actually written, not the size of the created volume. Usually, when the storage system is working, it will first create a space pool, and then create thin volumes in this pool for use. In the process of writing data, if the available space is found to be lower than the threshold, a piece of available space will be pre-allocated from the pool. The size of the available space allocated each time is...
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IPC IPC(8): G06F12/0802
Inventor 刘志勇
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD