I checked with a fixed VHDX disk. The results in Diskspd became approximately the same. Write IO thread | bytes | I / Os | MB / s | I / O per s | AvgLat | LatStdDev | file total: 51691520 | 6310 | 4.93 | 630.97 | 48.718 | 191.741 At the same time, the sequential recording from the VM has increased, ...