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.

Date of Patent:
Nov. 04, 2014

Filed:

Jun. 07, 2013
Applicant:

Vmware, Inc., Palo Alto, CA (US);

Inventors:

Ali Mashtizadeh, El Cerrito, CA (US);

Osten Kit Colbert, Mountain View, CA (US);

Assignee:

VMware, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 17/00 (2006.01); G06F 17/30 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30289 (2013.01); G06F 3/0664 (2013.01); G06F 3/0683 (2013.01); G06F 3/0617 (2013.01); G06F 3/0647 (2013.01);
Abstract

A disclosed method includes distinguishing static and dynamic persistent data, copying the static persistent data at the source data store to the destination data store on a basis of frequencies of updates, copying the dynamic persistent data to the destination data store, updating a bitmap data structure during the copying of the dynamic persistent data to indicate which blocks of the dynamic persistent data have been modified during the copying step, identifying the blocks that have been modified during the copying step using the bitmap data structure, and iteratively copying the identified blocks to the destination data store. The method may further include determining when the number of the identified blocks is below a predetermined threshold and suspending the virtual machine prior to the next copying step.


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