Vmware, Inc.

Rachit Siamwalla

Xun Wilson Huang

James M Phillips

Shane Lowry

Anupam Dalal

Gaurav Lochan

Redo logs are used to facilitate efficient cloning of virtual machines. When a virtual machine with a virtual hard disk is to be cloned, two redo logs are created, both of which are linked to the virtual hard disk. The virtual machine being cloned is then linked to one redo log, and a newly created virtual machine is linked to the other. Each time an additional virtual machine is created, two new redo logs are created and linked to the end of the disk chain. The parent and newly created virtual machine are each linked to one of the new redo logs.

Virtual machine image management using delta trees

Multiple virtual machine consoles run in a single user interlace as an integrated unit. Multiple virtual machines are grouped into a logical configuration, and console of each virtual machine in the configuration is displayed a single user interface, such as a browser window. Users are provided with integrated access through the single user interface to the available input/output functions and local resources for each displayed virtual machine console.

Multiple virtual machine consoles in a single interface

Multiple virtual machine consoles run in a single user interface as an integrated unit. Multiple virtual machines are grouped into a logical configuration, and console of each virtual machine in the configuration is displayed a single user interface, such as a browser window. Users are provided with integrated access through the single user interface to the mouse, keyboard, screen and local resources for each displayed virtual machine console. The user can move the mouse cursor between consoles, and access each virtual machine with the mouse and keyboard. In short, the user can interact with each displayed virtual machine console as an integrated object of the single user interface. Cut-and paste of text and drag-and-drop of files and folders is provided between the multiple virtual machines.

A plurality of virtual machines execute on a network of physical computers. The virtual machines are deployed in fenced and unfenced configurations across multiple physical computers. Host level virtual network devices execute on the physical computers, and intercept the virtual machine network traffic. For each fenced configuration of virtual machines, a distributed virtual switch transmits network traffic between the virtual machines deployed in that fenced configuration, and a virtual router routes network traffic between virtual machines deployed in that fenced configuration and external components.

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Foster City, CA, United States of America

Rachit Siamwalla