发明名称 |
N-WAY PARITY TECHNIQUE FOR ENABLING RECOVERY FROM UP TO N STORAGE DEVICE FAILURES |
摘要 |
An n-way parity protection technique enables recovery of up to n storage device (e.g., disk) failures in a parity group of a storage array encoded to protect against n-way disk failures. The storage array is created by first configuring the array with m data disks, where m=p-l and p is a prime number and a row parity disk, n-1 diagonal parity disks are then added to the array. Each diagonal parity set (i.e., diagonal) is associated with a slope that defines the data and row parity blocks of the array that are included in the diagonal. All diagonals having a common slope within a parity group are organized as a diagonal parity class. For each diagonal parity class, a diagonal parity storage disk is provided to store the diagonal parity. |
申请公布号 |
WO2011037629(A1) |
申请公布日期 |
2011.03.31 |
申请号 |
WO2010US02600 |
申请日期 |
2010.09.23 |
申请人 |
NETAPP, INC.;GOEL, ATUL;CORBETT, PETER, F. |
发明人 |
GOEL, ATUL;CORBETT, PETER, F. |
分类号 |
G06F11/10 |
主分类号 |
G06F11/10 |
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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