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. 21, 2024
Filed:
Oct. 29, 2020
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Bijayalaxmi Nanda, Edison, NJ (US);
Dixitkumar Patel, Monroe, NJ (US);
Vamsi K. Vankamamidi, Hopkinton, MA (US);
Philippe Armangau, Acton, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Techniques for rebuilding space accounting counters in mapping layers of storage appliances. The techniques include uniquely associating top levels of a mapping layer of a storage appliance with respective storage objects. The techniques further include determining amounts of logical storage space consumed by the respective storage objects from mappings of LBAs of the respective storage objects to virtual blocks of a virtual layer of the storage appliance. The techniques further include determining amounts of physical storage space consumed by the respective storage objects from logged information pertaining to each leaf pointer of a leaf level of the mapping layer that points to a virtual block in the virtual layer, each virtual block being mapped to a physical block in a physical layer of the storage appliance. The techniques further include using multi-threading to determine amounts of logical storage space consumed by dynamically adjustable ranges of the respective storage objects.