Method and apparatus of accessing data of virtual machine

摘要

A methods and device for accessing virtual machine (VM) data are described. A computing device for accessing virtual machine comprises an access request process module, a data transfer proxy module and a virtual disk. The access request process module receives a data access request sent by a VM and adds the data access request to a request array. The data transfer proxy module obtains the data access request from the request array, maps the obtained data access request to a corresponding virtual storage unit, and maps the virtual storage unit to a corresponding physical storage unit of a distributed storage system. A corresponding data access operation may be performed based on a type of the data access request.

主权项

1. A device comprising:
memory including at least a virtual storage unit; one or more processors coupled to the memory; an access request process module, stored in the memory and executable by the one or more processors, that:
receives a data access request from a virtual machine,determines whether data associated with the data access request is stored in a cache storage,obtains the data associated with the data access request in an event that the data associated with the data access request is stored in the cache storage, andadds the data access request to a request array in an event that the data associated with the data access request is not stored in the cache storage; and a data transfer proxy module, stored in the memory and executable by the one or more processors, that:
obtains the data access request from the request array, andmaps the data access request to the virtual storage unit that corresponds to a physical storage unit of a storage system.