Systems and methods for repurposing virtual machines

• US 10,379,892 B2
• Filed: 06/27/2016
• Issued: 08/13/2019
• Est. Priority Date: 12/28/2012
• Status: Active Grant

• Current Assignee: CommVault Systems Incorporated
• Original Assignee: CommVault Systems Incorporated
• Inventors: Kripalani, Sanjay Harakhchand
• Primary Examiner(s): Dascomb, Jacob D
• Application Number:
  US15/193,393
• Publication Number:
  US 20160306651A1
• Time in Patent Office: 1,142 Days
• CPC Class Codes: G06F 2009/45575 Starting, stopping, suspending or resuming virtual machine instances
• CPC Class Codes: G06F 2009/45595 Network integration; Enabling network access in virtual machine instances
• CPC Class Codes: G06F 3/0605 by facilitating the interaction with a user or administrator
• CPC Class Codes: G06F 3/0608 Saving storage space on storage systems
• CPC Class Codes: G06F 3/0632 by initialisation or re-initialisation of storage systems
• CPC Class Codes: G06F 3/0664 at device level, e.g. emulation of a storage device or system
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: G06F 9/45533 Hypervisors; Virtual machine monitors
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

Software, firmware, and systems repurpose existing virtual machines. After a virtual machine is created, the system stores data associated with the virtual machine to permit its later repurposing. Repurposing data includes data associated with the virtual machine when the virtual machine is in a generic state from which it may be configured for use by two or more users/applications. When the system receives a request to create a new virtual machine, rather than create a brand new virtual machine, the system repurposes an existing virtual machine. The system identifies a virtual machine to repurpose, deletes data associated with the identified virtual machine, and loads a saved copy of repurposing data. The system may then load user data or otherwise customize the database and virtual machine.

Claims

1. A method to be performed by a computing system for repurposing a virtual machine, the method comprising:

receiving a request that a virtual machine be created for a user, wherein the request includes a set of configuration parameters for the virtual machine;

identifying one or more existing virtual machines repurposable to the user that include configuration parameters that match the set of configuration parameters for the virtual machine included in the request;

selecting an existing virtual machine for repurposing to the user associated with the request, by;

when there is an idle virtual machine that matches the set of configuration parameters identified in the request, selecting the idle virtual machine from multiple idle virtual machines for repurposing to the user at least based on a time period that the idle virtual machine has been idle; and

when there is no idle virtual machine that matches the set of configuration parameters identified in the request, selecting an archived virtual machine that matches the set of configuration parameters identified in the request, for repurposing to the user; and

repurposing the selected virtual machine for the user by loading repurposing data to the selected virtual machine, including switching permissions or ownership of the repurposed machine from a previous user of the repurposed virtual machine to the user associated with the request.

2. The method of claim 1, wherein selecting an existing virtual machine for repurposing to the user associated with the request includes selecting an existing virtual machine based on a relative similarity between the existing virtual machine and the requested virtual machine.

3. The method of claim 1, further comprising:

customizing the repurposed virtual machine for the user based at least in part on credentials associated with the user.

4. The method of claim 1, wherein loading repurposing data to the selected virtual machine includes:

deleting data corresponding to the repurposing data, wherein the data corresponding to the repurposing data is presently associated with the selected virtual machine, and

merging the repurposing data with the selected virtual machine.

5. The method of claim 1, wherein the repurposing data includes a copy of a database in a data storage management system that stores metadata, media management, policies, reporting, and licensing information for the selected virtual machine.

6. The method of claim 1, wherein the repurposing data includes a copy of a database associated with the selected virtual machine, wherein the copy of the database was created before the selected virtual machine was customized by or for a user.

7. The method of claim 1, wherein:

the set of configuration parameters for the virtual machine includes at least one required configuration parameter and at least one preferred configuration parameter; and

the set of configuration parameters include one or more of;

a network identity for the virtual machine, a username of a user requesting the virtual machine, credentials associated with the user, a required range for a virtual processor'"'"'s speed, a required amount of random access memory, a preferred hard disk size, or a required operating system.

8. A non-transitory computer-readable storage medium storing instructions, which when executed by at least one data processing device, performs a method comprising:

receiving a request that a virtual machine be created for a user, wherein the request comprises a set of configuration parameters and their associated ranges of values for the virtual machine;

identifying a set of one or more existing virtual machines repurposable to the user that include configuration parameters, wherein each configuration parameter has values within a range of values specified in the received request for that configuration parameter;

selecting an existing virtual machine for repurposing to the user associated with the request, by;

when there is a presently unused virtual machine in the set of one or more existing virtual machines repurposable to the user, selecting the presently unused virtual machine from multiple presently unused virtual machines for repurposing to the user at least based on a time period that the existing virtual machine has not been in use; and

when there is no presently unused virtual machine in the set of one or more existing virtual machines repurposable to the user, selecting an archived virtual machine for repurposing to the user; and

repurposing the selected virtual machine for the user by loading repurposing data to the selected virtual machine, including switching permissions or ownership of the repurposed machine from a previous user of the repurposed virtual machine to the user associated with the request.

9. The non-transitory computer-readable storage medium of claim 8, wherein selecting an existing virtual machine for repurposing to the user associated with the request includes selecting an existing virtual machine based on a relative similarity between the existing virtual machine and the requested virtual machine.

10. The non-transitory computer-readable storage medium of claim 8, further comprising:

customizing the repurposed virtual machine for the user based at least in part on credentials associated with the user.

11. The non-transitory computer-readable storage medium of claim 8, wherein loading repurposing data to the selected virtual machine includes:

deleting data corresponding to the repurposing data, wherein the data corresponding to the repurposing data is presently associated with the selected virtual machine, and

merging the repurposing data with the selected virtual machine.

12. The non-transitory computer-readable storage medium of claim 8, wherein the repurposing data includes a copy of a database in a data storage management system that stores metadata, media management, policies, reporting, and licensing information for the selected virtual machine.

13. The non-transitory computer-readable storage medium of claim 8, wherein the repurposing data includes a copy of a database associated with the selected virtual machine, wherein the copy of the database was created before the selected virtual machine was customized by or for a user.

14. A system for repurposing a virtual machine, the system comprising:

at least one memory storing computer-executable instructions;

at least one processor configured to access at least one memory and execute the computer-executable instructions to perform a set of acts, the set of acts comprising;

receiving a request that a virtual machine be created for a user, wherein the request includes a set of configuration parameters for the virtual machine;

identifying one or more existing virtual machines repurposable to the user that include configuration parameters that match the set of configuration parameters for the virtual machine included in the request;

selecting an existing virtual machine for repurposing to the user associated with the request, by;

when there is an idle virtual machine that matches the set of configuration parameters identified in the request, selecting the idle virtual machine from multiple idle virtual machines for repurposing to the user at least based on a time period that the idle virtual machine has been idle; and

when there is no idle virtual machine that matches the set of configuration parameters identified in the request, selecting an archived virtual machine that matches the set of configuration parameters identified in the request, for repurposing to the user; and

repurposing the selected virtual machine for the user by loading repurposing data to the selected virtual machine, including switching permissions or ownership of the repurposed machine from a previous user of the repurposed virtual machine to the user associated with the request.

15. The system of claim 14, wherein selecting an existing virtual machine for repurposing to the user associated with the request includes selecting an existing virtual machine based on a relative similarity between the existing virtual machine and the requested virtual machine.

16. The system of claim 14, wherein the set of acts further comprise:

customizing the repurposed virtual machine for the user based at least in part on credentials associated with the user.

17. The system of claim 14, wherein loading repurposing data to the selected virtual machine includes:

deleting data corresponding to the repurposing data, wherein the data corresponding to the repurposing data is presently associated with the selected virtual machine, and

merging the repurposing data with the selected virtual machine.

18. The system of claim 14, wherein the repurposing data includes a copy of a database in a data storage management system that stores metadata, media management, policies, reporting, and licensing information for the selected virtual machine.