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|1. (WO2017036428) CAPACITY CHANGE SUGGESTION METHOD AND DEVICE|
|Title:||CAPACITY CHANGE SUGGESTION METHOD AND DEVICE|
A capacity change suggestion method and device, the method comprising: counting up third data fragments wherein the frequency of bidirectional migrations between a first storage resource pool and a second storage resource pool on a data storage server cluster exceeds a preset number of migrations within a preset time period (S202); according to the amount of data of the third data fragments, reporting a capacity change suggestion for the first storage resource pool (S204). The method solves the problem of reduced service access performance caused by a migration policy being manually set up in a static manner, and improves service access performance.