The embodiment of the invention provides a storage device access method, an apparatus and a system for accessing a storage device by a virtual machine. The method includes: I/O adapter to obtain from the virtual machine access request, the virtual address information storage area access request carries to access, according to the access request generation access instructions, access instructions carrying the virtual address information and the virtual machine virtual channel identifier, virtual channels and virtual machine correspondence, for the virtual machine and the storage device is connected with the corresponding target, target storage devices used to manage access to the storage device, and access instructions sent to the target storage device. Thus the virtual machine directly accesses the storage device, simplifies the access method of the storage device, reduces the I/O access process, and reduces the memory consumption and computing resource consumption of the software layer.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。
【技术保护点】
PCT国内申请，权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请，...
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