The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2016
Filed:
Sep. 26, 2013
Applicant:
Hangzhou H3c Technologies Co., Ltd., Hangzhou, CN;
Inventor:
Xiongkai Zheng, Beijing, CN;
Assignee:
HANGZHOU H3C TECHNOLOGIES CO., LTD., Hangzhou, Zhejiang, CN;
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2006.01); G06F 11/14 (2006.01); G06F 9/445 (2006.01); G06F 9/46 (2006.01);
U.S. Cl.
CPC ...
G06F 9/45558 (2013.01); G06F 9/445 (2013.01); G06F 9/461 (2013.01); G06F 11/14 (2013.01); G06F 11/1451 (2013.01); G06F 11/1458 (2013.01); G06F 11/1464 (2013.01); G06F 11/1461 (2013.01); G06F 2009/45562 (2013.01); G06F 2009/45575 (2013.01); G06F 2009/45583 (2013.01); G06F 2201/81 (2013.01); G06F 2201/815 (2013.01);
Abstract
A method to create virtual machines is provided. An initially empty primary copy-on-write (COW) image of a base disk image is created, and an initially empty secondary COW image of the primary COW image is created. A virtual machine is booted from the secondary COW image. Writes by the virtual machine are stored in the secondary COW image. When the secondary COW image reaches a capacity threshold, data of the secondary COW image is committed into the primary COW image and then the secondary COW is cleared of data.