Invention Grant
- Patent Title: Redistributing parity in a storage system
- Patent Title (中): 在存储系统中重新分配奇偶校验
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Application No.: US13867850Application Date: 2013-04-22
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Publication No.: US08910030B2Publication Date: 2014-12-09
- Inventor: Atul Goel
- Applicant: NetApp, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: DeLizio Gilliam, PLLC
- Main IPC: G11C29/42
- IPC: G11C29/42 ; G06F12/00 ; G06F11/10 ; G11C29/54
Abstract:
A parity pattern defines a repeated distribution of parity blocks within a distributed parity disk array (“DPDA”). The parity pattern identifies on which disks the parity block or blocks for a stripe are located. When a new disk is added to the DPDA, the parity pattern is modified so that the distribution of parity blocks within the parity pattern is even. Parity blocks within the DPDA are then redistributed to conform with the modified parity pattern.
Public/Granted literature
- US20130304987A1 DYNAMIC LOAD BALANCING OF DISTRIBUTED PARITY IN A RAID ARRAY Public/Granted day:2013-11-14
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