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:
Jan. 21, 2020
Filed:
Jan. 26, 2017
Pure Storage, Inc., Mountain View, CA (US);
Huihui Cheng, Fremont, CA (US);
Gunjan Dang, Sunnyvale, CA (US);
Michael Goldsby, San Francisco, CA (US);
Yanwei Jiang, Sunnyvale, CA (US);
Aswin Karumbunathan, San Francisco, CA (US);
Pete Kirkpatrick, Mountain View, CA (US);
Naveen Neelakantam, Mountain View, CA (US);
Neil Buda Vachharajani, San Francisco, CA (US);
Junming Zhu, Mountain View, CA (US);
PURE STORAGE, INC., Mountain View, CA (US);
Abstract
A storage controller coupled to a storage array comprising one or more storage devices performs a uniform sampling of data storage items in an append-only file system to identify a sample set and identifies at least two data storage item groups based on an age of the data storage items. The storage controller performs a garbage collection process on the append-only file system to identify stale data storage items in a first logical storage segment and active data storage items in the first logical storage segment and writes a first active data storage item associated with a first group of the two data storage item groups from the first logical storage segment to a second logical storage segment, the second logic storage segment comprising other active data storage items associated with the first group.