发明名称 |
ERASURE CORRECTING CODES FOR STORAGE ARRAYS |
摘要 |
A data storage array includes m rows and n columns of entries, with each entry including at least one sector. In the array, mr+s locations are assigned to parity entries, such that each row has at least r parity entries. The parity entries correspond to a partial-maximum distance separable (PMDS) code that allows recovery from up to r erasures in each of the m rows as well as s additional erasures in any locations in the data array, where s is an integer greater than zero. The write data and the associated parity entries are written to the set of storage devices. |
申请公布号 |
WO2013114230(A1) |
申请公布日期 |
2013.08.08 |
申请号 |
WO2013IB50262 |
申请日期 |
2013.01.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION;IBM UNITED KINGDOM LIMITED;IBM (CHINA) INVESTMENT COMPANY LIMITED |
发明人 |
BLAUM, MARIO;HAFNER, JAMES, LEE;HETZLER, STEVEN, ROBERT |
分类号 |
G11C29/00 |
主分类号 |
G11C29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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