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:
Mar. 26, 2024
Filed:
May. 25, 2022
International Business Machines Corporation, Armonk, NY (US);
Ben Sasson, North Baddesley, GB;
Lee Jason Sanders, Chichester, GB;
Gordon Douglas Hutchison, Eastleigh, GB;
William J. Scales, Hampshire, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Described are techniques for managing data locations of derived storage objects. The techniques include accessing a primary metadata tree providing a lookup path using a virtual address to locate data for a primary object in physical storage pointed to by a leaf node of the primary metadata tree and providing a sub-tree from a leaf node of the primary metadata tree associated with the primary object, the sub-tree providing lookup paths using virtual addresses for derived objects. Wherein a derived object is a view of the primary object at a specific point in time, with copy leaf nodes of the sub-tree pointing to stored data of the derived objects. The techniques further include maintaining an ancestry graph associated with the sub-tree with the ancestry graph linking derived object identifiers to provide an ancestral chain lookup to identify derived object identifiers of the closest stored physical data of a derived object.