All-flash storage system data management method, device and equipment

Abstract

The invention discloses an all-flash storage system data management method, device and equipment and a computer readable storage medium. The method comprises the steps of establishing an LSA volume between a simplified volume layer and a VG layer of an all-flash storage system; allocating the memory space of the LSA volume to a data volume and a metadata volume according to a preset proportion; creating an original bitmap according to the size of the original memory space of the metadata volume; judging whether the available memory space of the metadata volume is smaller than a preset space threshold value or not according to the storage state of each gram in the metadata volume recorded by each bit in the original bitmap; and if so, setting a target memory space with a preset size in thedata volume as the updated memory space of the metadata volume, thereby finishing expansion of the metadata volume. According to the method, the device, the equipment and the computer readable storage medium provided by the invention, a large amount of metadata generated by the all-flash storage system can be effectively loaded into the expanded metadata volume.

Description

technical field [0001] The invention relates to the technical field of disks, in particular to a data management method, device, device and computer-readable storage medium of an all-flash storage system. Background technique [0002] With the advancement of disk technology, SSD hard disks are becoming more and more common. Compared with traditional hard disks, SSD disks have much higher capacity and access speed than traditional hard disks. However, the reading and writing methods of SSD hard disks are very different from traditional hard disks. Therefore, in order to maximize the performance advantages of SSD disks, many manufacturers have begun to do research on all-flash (SSA) storage systems. SSA storage systems require back-end The disks are all SSD disks. According to the read and write characteristics of SSD disks, SSA needs to operate a large amount of metadata, and the metadata operation is an important part of metadata operations. [0003] From the above, it can...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method, device, device and computer-readable storage medium for data management of an all-flash storage system, so as to solve the problem that a large amount of metadata in an all-flash storage system in the prior art cannot be effectively placed on the disk

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