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:
Apr. 02, 2024
Filed:
May. 15, 2020
Vmware, Inc., Palo Alto, CA (US);
Eric Knauft, San Francisco, CA (US);
Enning Xiang, San Jose, CA (US);
Mansi Shah, San Jose, CA (US);
Pascal Renauld, Palo Alto, CA (US);
Yiqi Xu, Redwood City, CA (US);
Ojan Thornycroft, Los Altos, CA (US);
Pratik Desai, San Jose, CA (US);
Zhihao Yao, Cupertino, CA (US);
Yizhou Luo, Mountain View, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
The disclosure herein describes enhancing data durability of a base component using a delta component. A delta component is generated based on the base component becoming unavailable. The delta component is configured to include unwritten storage space with an address space matching the base component and a tracking bitmap associated with data blocks of the address space of the delta component. Write operations targeted for the base component are routed to the delta component. Based on the routed write operations, bits associated with data blocks affected by the write operations are changed in the tracking bitmap. Based on the base component becoming available, data blocks affected by routed write operations are identified based on the tracking bitmap and the identified data blocks are synchronized from the delta component to the base component. The delta component is then removed.