Abstract: The embodiments of the present invention relate to a storage system comprising: a storage network; at least two storage nodes, connected to the storage network; and at least one storage device, connected to the storage network, each storage device comprising at least one storage medium; wherein, the storage network is configured to enable each of the at least two storage nodes to access any of the at least one storage medium without passing through another storage node of the at least two storage nodes. According to the embodiments of the present invention, a storage system in which there is no need to physically migrate data when rebalancing is required is provided.

Abstract: Embodiments of the present invention relate to a method and device for a virtual machine to access a storage device in a cloud computing management platform, which can solve the problem that, in the prior art, the virtual machine cannot be connected to the local storage device directly, but must be connected to the local storage device through the iSCSI protocol. The method includes: judging whether the storage device to be accessed by the virtual machine is on a same physical machine as the virtual machine; and when it is judged that the storage device is on the same physical machine as the virtual machine, mounting the storage device directly to the virtual machine.