Vmware, Inc.

Yanlei Zhao

Arunachalam Ramanathan

Gabriel Tarasuk-Levin

Pavan Narasimhaprasad

Alexander Krits

David A Dunn

Jeffrey W Sheldon

Yury Baskakov

Derek William Beard

Li Zheng

Anurekh Saxena

Nathan L Prziborowski

Benjamin Yun Liang

Anupama Chandwani

Rohan Pradip Shah

Sreekanth Setty

Zexing Jiang

Radhika Vyas

Yixin Zou

Techniques for implementing data plane isolation for VM mobility operations are provided. In one set of embodiments, these techniques include creating a virtual network path between a source host system and a destination host system participating in a VM mobility operation, which allows the host systems to exchange data for carrying out the operation without exposing their physical IP addresses to each other and without requiring the use of intermediate proxies. In certain embodiments, the virtual network path can be dynamically established upon initiation of the VM mobility operation and dynamically rolled back upon operation completion, thereby reducing the overhead of virtual path management.

Data plane isolation for virtual machine (VM) mobility operations

Some embodiments of the invention provide a method for performing congestion control for a particular packet flow associated with a source first host computer operating in a network. The method is performed at the first source host computer. The method determines a bandwidth threshold specified for the particular packet flow. Based on the bandwidth threshold, the method allocates an amount of bandwidth to the particular packet flow. The method periodically receives sets of contextual data associated with the particular packet flow. For the received sets of contextual data, the method iteratively (1) computes a current bandwidth consumption by the particular packet flow and (2) based on the sets of contextual data and the current bandwidth consumption, adjusts the amount of bandwidth allocated to the particular packet flow.

Bandwidth utilization-based congestion control

A virtual machine (VM) is migrated from a source host to a destination host in a virtualized computing system, the VM having a plurality of virtual central processing units (CPUs). The method includes copying, by VM migration software executing in the source host and the destination host, memory of the VM from the source host to the destination host by installing, at the source host, write traces spanning all of the memory and then copying the memory from the source host to the destination host over a plurality of iterations; and performing switch-over, by the VM migration software, to quiesce the VM in the source host and resume the VM in the destination host. The VM migration software installs write traces using less than all of the virtual CPUs, and using trace granularity larger than a smallest page granularity.

Memory copy during virtual machine migration in a virtualized computing system

A method of migrating a network file copy (NFC) operation from a first host computing device to a second host computing device includes the steps of: transmitting a first request to the first host computing device to execute the NFC operation, wherein the NFC operation comprises transferring data from a shared datastore to another datastore; after transmitting the first request, selecting the second host computing device to complete the NFC operation in place of the first host computing device, and transmitting a second request to the first host computing device to stop executing the NFC operation; after transmitting the second request, detecting a message indicating that the first host computing device completed the copying of a first portion of the data; and in response to the detection of the message, transmitting a third request to the second host computing device to perform the remainder of the NFC operation.

Migration of network file copy operations between host computing devices

A method of migrating a virtual machine (VM) having a virtual disk from a source data center to a destination data center includes generating a snapshot of the VM to create a base disk and a delta disk in which writes to the virtual disk subsequent to the snapshot are recorded, and copying the base disk to a destination data store. The method further includes, in response to a request to migrate the VM, preparing a migration specification at the source and transmitting the migration specification to the destination, the migration specification including a VM identifier and a current content ID of the base disk, and determining that a content ID of the copied base disk matches the current content ID of the base disk included in the migration specification and updating the migration specification to indicate that the base disk does not need to be migrated.

Live migration of virtual machines across heterogeneous virtual machine management domains

Growing community of inventors

Palo Alto, CA, United States of America

Yanlei Zhao