Invention Grant
- Patent Title: Constraining placement of replica segment pairs among device pairs based on coding segment count
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Application No.: US16456891Application Date: 2019-06-28
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Publication No.: US11023158B2Publication Date: 2021-06-01
- Inventor: Ao Sun , Gary Jialei Wu , Lu Lei
- Applicant: EMC IP Holding Company LLC
- Applicant Address: US MA Hopkinton
- Assignee: EMC IP Holding Company LLC
- Current Assignee: EMC IP Holding Company LLC
- Current Assignee Address: US MA Hopkinton
- Agency: Amin, Turocy & Watson, LLP
- Priority: CN201910081914.8 20190128
- Main IPC: G06F3/06
- IPC: G06F3/06

Abstract:
Embodiments of the present disclosure provide a method, apparatus, and computer program product for storing data. A method for storing data comprises: dividing data to be stored into a first number of data segments; generating a second number of coding segments based on the first number of data segments, such that at least a part of data segments from the first number of data segments can be derived from the second number of coding segments and remaining data segments in the first number of data segments; generating, for each of the first number of data segments, a replication data segment identical to the data segment; and storing the first number of data segments, the first number of replication data segments and the second number of coding segments into a plurality of storage devices. Embodiments of the present disclosure can reduce extra overhead for protecting data while ensuring high data availability.
Public/Granted literature
- US20200241760A1 METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR STORING DATA Public/Granted day:2020-07-30
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