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.

Date of Patent:
Oct. 17, 2023

Filed:

Jul. 12, 2021
Applicant:

Lightbits Labs Ltd., Kfar Saba, IL;

Inventors:

Shmuel Ben-Yehuda, Haifa, IL;

Ofir Efrati, Even Yehuda, IL;

Abel Alkon Gordon, Haifa, IL;

Ofer Hayut, Rosh Pina, IL;

Eran Kirzner, Moshav Elishama, IL;

Alexander Shpiner, Nesher, IL;

Roy Shterman, Kfar Saba, IL;

Maor Vanmak, Magal, IL;

Assignee:

LIGHTBITS LABS LTD., Kfar Saba, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0647 (2013.01); G06F 3/0611 (2013.01); G06F 3/0652 (2013.01); G06F 3/0659 (2013.01); G06F 3/0688 (2013.01);
Abstract

In a storage system including a first tier and a second tier a method includes: storing access statistics per object; obtaining a request to perform a write operation; calculating a recency factor to the first object based on the access statistics; and writing the first object to one of the first tier and the second tier, depending on the recency factor. Performing garbage collection process on the second tier may include: reading metadata of an object stored in the second tier; determining whether the object is valid based on the metadata; if the object is invalid, discarding the object; and if the second object is valid: calculating a recency factor for the object based on the access statistics of the object; and moving the object to the first tier or leaving the object in the second tier, depending on the recency factor of the second object.


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