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:
May. 25, 2021
Filed:
Feb. 09, 2016
Nutanix, Inc., San Jose, CA (US);
Manosiz Bhattacharyya, San Jose, CA (US);
Bharat Kumar Beedu, Santa Clara, CA (US);
Parthasarathy Ramachandran, Palo Alto, CA (US);
Nutanix, Inc., San Jose, CA (US);
Abstract
Systems, methods, and computer program products for distributed data storage. A spot defragmentation method commences upon receiving an incoming storage I/O command to access a subject logical object that is composed of subject logical data blocks. The method continues by retrieving a block map that characterizes spatial relationships between the subject logical data blocks and instances of respective subject physical data blocks that store the subject logical object on a storage device. During processing of the incoming storage I/O command, the method determines occurrences of, and locations of one or more fragmented physical data blocks. A defragmentation operation is initiated to coalesce the fragmented physical data blocks to another location. The defragmentation operation is initiated before completing the storage I/O command. In some instances, defragmentation operations are performed over a snapshot file such that upon completing the defragmentation operations and/or spot coalesce operations, the snapshot file can be deleted.