Method and system for migrating virtual machines in virtual infrastructure

• US 9,547,516 B2
• Filed: 08/23/2014
• Issued: 01/17/2017
• Est. Priority Date: 08/22/2014
• Status: Active Grant

• Current Assignee: Nicira Incorporated (Broadcom, Inc.)
• Original Assignee: Nicira Incorporated (Broadcom, Inc.)
• Inventors: Thakkar, Sachin, Su, ChiHsiang, Yu, Jia, Kothari, Piyush, Nipane, Nilesh Ramchandra
• Primary Examiner(s): Puente, Emerson
• Assistant Examiner(s): Labud, Jonathan R
• Application Number:
  US14/466,998
• Publication Number:
  US 20160055019A1
• Time in Patent Office: 878 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1484 involving virtual machines
• CPC Class Codes: G06F 11/2033 switching over of hardware resources
• CPC Class Codes: G06F 11/2035 without idle spare hardware
• CPC Class Codes: G06F 11/2097 maintaining the standby controller/processing unit updated initialisation or re-synchronisation thereof G06F11/1658 and subgroups
• CPC Class Codes: G06F 2009/4557 Distribution of virtual machine instances; Migration and load balancing
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects
• CPC Class Codes: G06F 9/50 Allocation of resources, e.g. of the central processing unit [CPU]
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 41/0813 characterised by the conditions triggering a change of settings
• CPC Class Codes: H04L 41/082 the condition being updates or upgrades of network functionality
• CPC Class Codes: H04L 41/0886 Fully automatic configuration
• CPC Class Codes: H04L 41/0897 by horizontal or vertical scaling of resources, or by migrating entities, e.g. virtual resources or entities
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 43/0876 Network utilisation, e.g. volume of load or congestion level
• CPC Class Codes: H04L 49/70 Virtual switches

Abstract

A method of migrating a data compute node (DCN) in a datacenter comprising a plurality of host physical computing devices, a compute manager, and a network manager is provided. The method by the network manager configures a plurality of logical networks and provides a read-only configuration construct of at least one of the plurality of logical networks to the virtualization software of each host. The construct of each logical network includes a unique identification of the logical network. The method by the compute manager obtains the unique identification of one or more of the logical networks, determining that a particular logical network is available on first and second hosts based on the unique identification of the particular logical network, and configures a first DCN to move from the first host to the second host based on the determination that the first and second hosts are on the particular logical network.

Claims

1. A method of migrating a data compute node (DCN) in a datacenter comprising a plurality of host physical computing devices, a compute manager to configure a set of DCNs on the hosts, and a network manager, each host comprising virtualization software, the method comprising:

by the compute manager, configuring at least one DCN on each of the plurality of hosts;

by the network manager, configuring a plurality of logical networks and providing a read-only configuration construct of at least one of the plurality of logical networks to the virtualization software of each host, the read-only configuration construct of each logical network comprising a unique identification of the logical network;

by the compute manager;

obtaining, from the virtualization software of a first host, the unique identification of a particular logical network included in the read-only configuration construct of the particular logical network, the particular logical network connected to a DCN configured on the first host;

determining that the particular logical network is available on a second host based on the unique identification of the particular logical network; and

configuring the DCN to migrate from the first host to the second host based on the determination that the second host is on the particular logical network.

2. The method of claim 1 further comprising:

by the network manager;

configuring a logical forwarding element (LFE) on each of the plurality of hosts to perform open systems interconnection (OSI) model layer 3 (L3) packet forwarding between DCNs of the hosts, the LFE comprising a plurality of ports; and

connecting each of a set of DCNs of the virtualization software of the second host to the particular network through a set of ports in the plurality of LFE ports,

wherein configuring the first DCN to move from the first host to the second host is based on an availability of a free LFE port on the second host.

3. The method of claim 1 further comprising determining a utilization of a set of resources on each host by the virtualization software of the corresponding host, wherein configuring the first DCN to move from the first host to the second host is based on a determination that the utilization of each resource in the set of resources on the second host is below a predetermined threshold.

4. The method of claim 1, wherein the unique identification of each logical network is a universal unique identification (UUID) of the logical network.

5. The method of claim 1, wherein the virtualization software of the first host obtains the unique identification of the particular logical network from the network manager.

6. The method of claim 1 further comprising determining by the compute manager that the first host requires maintenance,

wherein configuring the first DCN to move from the first host to the second host is in response to determining that the first host requires maintenance.

7. The method of claim 1 further comprising determining by the compute manager that utilization of a particular resource on the first host has exceeded a predetermined threshold,

wherein configuring the first DCN to move from the first host to the second host is in response to determining that the first host has exceeded utilization of the particular resource.

8. The method of claim 7, wherein the particular resource is one of processing, memory, and communication bandwidth.

9. The method of claim 1 further comprising determining by the compute manager that resources of the first and second hosts are underutilized, wherein configuring the first DCN to move from the first host to the second host is in response to determining that resources of the first and second hosts are underutilized to turn off the power on the first host after moving the first DCN to the second host.

10. The method of claim 1, wherein the DCN is a virtual machine (VM).

11. A system comprising:

a plurality of host physical computing devices, each host comprising virtualization software;

a compute manager to configure at least one data compute node DCN on each of the plurality of the hosts;

a network manager to configure a plurality of logical networks and provide a read-only configuration construct of at least one of the plurality of logical networks to the virtualization software of each host, the read-only configuration construct of each logical network comprising a unique identification of the logical network;

the compute manager further to;

obtain, from the virtualization software of a first host, the unique identification of a particular logical network included in the read-only configuration construct of the particular logical network, the particular logical network connected to a DCN configured on the first host;

determine that the particular logical network is available on a second host based on the unique identification of the particular logical network; and

configure the DCN to migrate from the first host to the second host based on the determination that the second host is on the particular logical network.

12. The system of claim 11, the network manager further to:

configure a logical forwarding element (LFE) on each of the plurality of hosts to perform open systems interconnection (OSI) model layer 3 (L3) packet forwarding between DCNs of the hosts, the LFE comprising a plurality of ports; and

connect each of a set of DCNs of the virtualization software of the second host to the particular network through a set of ports in the plurality of LFE ports,

wherein configuring the first DCN to move from the first host to the second host is based on an availability of a free LFE port on the second host.

13. The system of claim 11, wherein the virtualization software of each host is configured to determine a utilization of a set of resources on the host, wherein configuring the first DCN to move from the first host to the second host is based on a determination that the utilization of each resource in the set of resources on the second host is below a predetermined threshold.

14. The system of claim 11, wherein the unique identification of each logical network is a universal unique identification (UUID) of the logical network.

15. The system of claim 11, wherein the virtualization software of the first host obtains the unique identification of the particular logical network from the network manager.

16. The system of claim 11, the compute manager further to determine that a host requires maintenance,

wherein configuring the first DCN to move from the first host to the second host is in response to determining that the first host requires maintenance.

17. The system of claim 11, wherein the compute manager is further to determine that utilization of a particular resource on a host has exceeded a predetermined threshold,

wherein configuring the first DCN to move from the first host to the second host is in response to determining that the first host has exceeded utilization of the particular resource.

18. The system of claim 17, wherein the particular resource is one of processing, memory, and communication bandwidth.

19. The system of claim 11, the compute manager further to:

determine that resources of the first and second hosts are underutilized, wherein configuring the first DCN to move from the first host to the second host is in response to determining that resources of the first and second hosts are underutilized to turn off the power on the first host after moving the first DCN to the second host.

20. The system of claim 11, wherein the DCN is a virtual machine (VM).