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:
Oct. 12, 2021
Filed:
Jun. 05, 2020
Vmware, Inc., Palo Alto, CA (US);
Wenguang Wang, Santa Clara, CA (US);
Eric Knauft, Palo Alto, CA (US);
Vamsidhar Gunturu, Cupertino, CA (US);
VMware, Inc., Palo Alto, CA (US);
Abstract
Systems, for managing metadata data blocks, include a fast performance tier and a large capacity tier. The capacity tier stores the data blocks in erasure-encoded stripes. The performance tier stores map data indicating correspondences between logical addresses, associated with a first layer of the system, and physical addresses associated with a second layer. The map data is structured as a B-tree with leaf nodes and index nodes. A method includes determining a volume associated with the leaves. In response to the volume being greater than a threshold, migrating a portion of the leaves to the stripes of the capacity tier. A portion of the indexes that include pointers to the migrated portion of the leaves are updated to include updated pointers to physical addresses of the stripes that store the migrated leaves. A portion of the performance tier that stores the migrated leaves is re-allocated to store additional map data.