Invention Grant
- Patent Title: Managing locations of derived storage objects
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Application No.: US17664880Application Date: 2022-05-25
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Publication No.: US11940969B2Publication Date: 2024-03-26
- Inventor: Ben Sasson , Lee Jason Sanders , Gordon Douglas Hutchison , William J. Scales
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Eric W. Chesley
- Main IPC: G06F16/22
- IPC: G06F16/22 ; G06F11/14 ; G06F16/28

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.
Public/Granted literature
- US20230385260A1 MANAGING LOCATIONS OF DERIVED STORAGE OBJECTS Public/Granted day:2023-11-30
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