Virtual server cloning

• US 8,176,153 B2
• Filed: 05/02/2007
• Issued: 05/08/2012
• Est. Priority Date: 05/02/2006
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Bose, Patrick Glen
• Primary Examiner(s): Nguyen, Thuong
• Application Number:
  US11/743,537
• Publication Number:
  US 20070258388A1
• Time in Patent Office: 1,833 Days
• Field of Search: 709/223, 709/226, 370/254, 713/1, 718/1, 718/105
• US Class Current: 709/222
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers

Abstract

In one embodiment, a system preparation application may be executed on a source storage device to prepare a reference system for image creation. The reference system may include at least one application for customization. The image of the prepared reference may be automatically deployed to a target storage device. The target storage device may be associated with a virtual server. Customization data may be written to the target storage device.

Claims

1. A method comprising:

executing, on a source storage device that includes a reference system, a system preparation application to prepare the reference system for image creation, the reference system including at least one application for customization;

creating an image of the prepared reference system;

automatically deploying the image to a target storage device;

assigning a virtual server to the target storage device, the assigning causing the target storage device to be associated with a physical server, the physical server to host the virtual server;

writing customization data to the target storage device, wherein the customization data comprises a customization script used to customize the at least one application;

writing recustomization data to the target storage device, the writing of the recustomization data occurring without redeploying of the image to the target storage device; and

automatically recustomizing a deployed system using the recustomization data, the recustomizing comprising disassociating the virtual server with the target storage device of the deployed system and the deployed system including the physical server,

wherein the automatically deploying of the image to the target storage device comprises automatically deploying the image in parallel to the target storage device and an additional storage device, the target storage device being associated with an additional virtual server.

2. The method of claim 1, wherein the creating of the image comprises:

making a bit-by-bit copy of the reference system;

compressing the bit-by-bit copy to create the image; and

storing the image and any metadata associated with the image.

3. The method of claim 1, wherein the creating of the image further comprises:

creating the virtual server on the target storage device.

4. The method of claim 1, wherein the method is performed automatically on a source storage device of a storage area network (SAN).

5. The method of claim 1, wherein the method is performed automatically on a source storage device of a local storage device of the physical server.

6. The method of claim 1, wherein the automatically deploying of the image in parallel comprises:

initiating a plurality of read and write threads; and

automatically deploying the image to the target storage device and the additional storage device using the plurality of read and write threads.

7. The method of claim 1, further comprising:

executing a setup process upon booting the physical server to create the deployed system from the reference system of the deployed image; and

automatically customizing the deployed system using the customization data.

8. The method of claim 1, wherein the writing of the recustomization data comprises:

disassociating the target storage device with the physical server;

providing a virtual server system director with access to the target storage device; and

writing the recustomization data to the target storage device.

9. The method of claim 1, wherein the target storage device is a networked memory area on a Storage Area Network (SAN).

10. The method of claim 1, wherein the target storage device is a local storage device of the physical server.

11. An apparatus comprising:

one or more hardware processors;

a preparation module configured to execute, using the one or more hardware processors, a system preparation application on a source storage device to prepare the reference system for image creation, the source storage device including a reference system, the reference system including at least one application for customization;

an image creation module configured to create an image of the prepared reference system;

a deployment module configured to automatically deploy the image to a target storage device;

an assigning module configured to assign a virtual server to the target storage device, the assigning causing the target storage device to be associated with a physical server, the physical server to host the virtual server;

a writing module configured to automatically write customization data to the target storage device, wherein the customization data is used to customize the at least one application; and

a recustomization module configured to;

write recustomization data to the target storage device without redeploy of the image to the target storage device;

disassociate the virtual server with the target storage device of the deployed system; and

automatically recustomize a deployed system using the recustomization data, the deployed system including the physical server,

wherein the deployment module is configured to automatically deploy the image in parallel to the target storage device and an additional storage device, the target storage device being associated with an additional virtual server.

12. The apparatus of claim 11, wherein the image creation module configured to create the image of the prepared reference system is further configured to:

make a bit-by-bit copy of the reference system;

compress the bit-by-bit copy to create the image; and

store the image and any metadata associated with the image.

13. The apparatus of claim 11, wherein the deployment module configured to automatically deploy the image in parallel is further configured to:

initiate a plurality of read and write threads; and

automatically deploy the image to the target storage device and the additional storage device using the plurality of read and write threads.

14. The apparatus of claim 11, further comprising at least one module configured to:

execute a setup process upon booting the physical server to create the deployed system from the reference system of the deployed image; and

automatically customize the deployed system using the customization data.

15. The apparatus of claim 11, wherein the recustomization module configured to write the recustomization data is further configured to:

disassociate the target storage device with the physical server;

provide a virtual server system director with access to the target storage device; and

write the recustomization data to the target storage device.

16. The apparatus of claim 11, wherein the target storage device is a networked memory area on a Storage Area Network (SAN).

17. The apparatus of claim 11, wherein the target storage device is a local storage device of the physical server.

18. A non-transitory computer-readable medium embodying instructions that, when executed by a computer, cause the computer to:

execute, on a source storage device that includes a reference system, a system preparation application to prepare the reference system for image creation, the reference system including at least one application for customization;

create an image of the prepared reference system;

automatically deploy the image to a target storage device;

assign a virtual server to the target storage device, the assigning causing the target storage device to be associated with a physical server, the physical server to host the virtual server;

write customization data to the target storage device, wherein the customization data comprises a customization script used to customize the at least one application;

write recustomization data to the target storage device without redeploy of the image to the target storage device; and

automatically recustomize a deployed system using the recustomization data, the recustomizing comprising disassociating the virtual server with the target storage device of the deployed system and the deployed system including the physical server,

wherein the automatically deploying of the image to the target storage device comprises automatically deploying the image in parallel to the target storage device and an additional storage device, the target storage device being associated with an additional virtual server.

19. The non-transitory computer-readable medium of claim 18, wherein the target storage device is a local storage device of the physical server.

20. The non-transitory computer-readable medium of claim 18, further comprising instructions to:

execute a setup process upon booting the physical server to create the deployed system from the reference system of the deployed image; and

automatically customize the deployed system using the customization data.