发明名称 |
HMC: A hybrid mirror-and-chained data replication method to support high data availability for disk arrays |
摘要 |
A method of distributing a set of data among a plurality of disks, which provides for load balancing in the event of a disk failure. In accordance with the method the total number of the disks in an array are divided into a number of clusters. The blocks of data are then stored in each cluster such that each cluster contains a complete set of the data and such that data block placement in each cluster is a unique permutation of the data block placement in the other clusters. In the event of a disk failure, data block accesses to the failed disk are redirected to a disk in the other cluster having a copy of the data block and further access to the disks that remain operational are rebalanced. |
申请公布号 |
US5559764(A) |
申请公布日期 |
1996.09.24 |
申请号 |
US19940292640 |
申请日期 |
1994.08.18 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CHEN, MING-SYAN;HSIAO, HUI-I;LI, CHUNG-SHEN;YU, PHILIP S. |
分类号 |
G06F3/06;G06F11/20;G11B20/18;G11C29/00;(IPC1-7):G11B17/22 |
主分类号 |
G06F3/06 |
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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