Method and device for improving reconstruction performance of virtual disk group
A virtual disk and performance technology, applied in the storage field, can solve problems such as ideal effect, achieve the effect of improving reconstruction performance and reducing memory consumption
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[0025] Aiming at the problems in the background technology, after careful analysis, the inventor found that the main reasons for this situation are: 1) multiple VDs on the same disk participate in the reconstruction, and the time consumed by disk addressing is very large, resulting in reconfiguration. The performance of the structure will be reduced, and multiple VDs on each disk participate in the reconstruction, and the instantaneous memory occupation is relatively large, which will cause the demand for large-capacity memory; The number of VDs occupied by each physical disk is maintained in a balanced state. If the read and write speed of a disk is relatively slow, and multiple VDs are superimposed for reconstruction, the performance of the disk will be slower, which will affect the overall performance. Refactoring time.
[0026] Please refer to figure 1 , a storage pool consists of a set of disks, each sliced in blocks (VDs) of the same size. When creating an upper-laye...
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