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:
Mar. 11, 2025
Filed:
Jun. 14, 2021
Vmware Llc, Palo Alto, CA (US);
Enning Xiang, San Jose, CA (US);
Wenguang Wang, Santa Clara, CA (US);
VMware LLC, Palo Alto, CA (US);
Abstract
Linked clone read performance when retrieving data from a clone is improved at least by aggregating block mapping metadata efficiently. Primary metadata for a child clone maps a logical block address (LBA) for data in a data region of the child clone to a physical sector address (PSA) for data in the data region of the child clone. At least a portion of primary metadata for a parent clone of the child clone is copied into archival metadata for the child clone. In response to a read request, data is returned from the child clone, parent clone, or another ancestor of the child clone based on whether or not a read request LBA is within the primary metadata for the child clone, or within the archival metadata.