Principles and impact of expanding disk domains of OceanStor V3 storage systems

After the new disks are added to a disk domain, the system automatically performs migration to ensure that the used capacity of each disk is the same. The migration speed is related to the load of the disk domain. For example, if the I/O load on the disk domain is heavy, the migration speed is reduced; if the I/O load on the disk domain is light, the migration speed is relatively high. The migration speed has no major impact on the performance of a disk domain. However, it is still recommended to perform migration when the service load is light.

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