Invention Grant
- Patent Title: Missing slice reconstruction in a dispersed storage network
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Application No.: US15238791Application Date: 2016-08-17
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Publication No.: US10013309B2Publication Date: 2018-07-03
- Inventor: Bart R. Cilfone
- 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
- Agency: Garlick & Markison
- Agent Timothy W. Markison; Randy W. Lacasse
- Main IPC: H03M13/00
- IPC: H03M13/00 ; G06F11/10 ; H03M13/15 ; G06F3/06

Abstract:
A method for execution by a processing system of a dispersed storage network includes receiving first slices encoded via a first information dispersal algorithm (IDA) in a response to an access request corresponding to an associated data object and determining when a number of the first slices is less than a read threshold corresponding to the first IDA and that the data object is also encoded into second slices via a second IDA. If so, the processing system identifies missing slices encoded via the first IDA corresponding to the access request; determines at least one of the second slices encoded via the second IDA corresponding to the missing slices; retrieves the at least one of the second slices; and generates the data object based on the first slices encoded via the first IDA and the at least one of the second slices encoded via the second IDA.
Public/Granted literature
- US20180052734A1 MISSING SLICE RECONSTRUCTION IN A DISPERSED STORAGE NETWORK Public/Granted day:2018-02-22
Information query
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