A command unloading method, device and physical machine

Abstract

The invention discloses a command uninstall method, a device and a physical machine and relates to the communication technical field, aiming at effectively reducing the waste of hardware resource of the physical machine when operation instructions (such as copy or clear instructions) are processed. The method of the invention comprises following steps: a virtual machine intercepts an operation instruction issued by an application program, wherein the operation instruction is used for instructing execution of designated operations on data to be operated; the virtual machine generates an uninstall command according to the operation instruction, and sends the uninstall command to a host, wherein the uninstall command comprises a copy uninstall command or a clear uninstall command; the host translates a virtual source address in the uninstall command into a physical source address of the data to be operated, wherein the virtual source address is used for indicating the location of the data to be operated in a virtual disk of the virtual machine; the host performs designated operations on the data to be operated according to a virtual destination address in the uninstall command and the physical source address of the data to be operated. The method, the device and the physical machine of the invention are suitable for command uninstall processes.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a command offloading method, device and physical machine. Background technique [0002] At present, whether it is to realize the unloading process of copying between virtual machines or the clearing command unloading process of the virtual machine itself, it is necessary for the virtual machine to send the operation command through the IO (English: Input / Output, Chinese: Input / Output) ring is sent to the back-end process, and the host computer generates the corresponding SCSI (English: Small Computer System Interface, Chinese: Small Computer System Interface) command according to the operation command, and then sends it to such as IP SAN (English: IP based SAN, Chinese: IP-based SAN device) and other physical storage devices, the physical storage device parses and executes the SCSI command, thereby completing data copy or clearing operations on the physical storag...

AI Technical Summary

Problems solved by technology

However, considering that the copying or clearing of the above data needs to be completed by the physical layer hardware device of the physical machine, and even requires the participation of the CPU (English: Central Processing Unit, Chinese: central processing unit) and network resources of the physical machine, Higher requirements on the hardware resources of the physical machine also lead to a waste of physical machine hardware resources and network resources

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