| 发明名称 | Systems and methods for data repair | ||
| 摘要 | An embodiment method for data repair in a storage system includes determining, by a processor, a minimum number of missing data blocks needed to repair a corrupted object in a first portion of the storage system, wherein the missing data blocks are not available in the first portion of the storage system, retrieving only the minimum number of missing data blocks needed to repair the corrupted object from a second portion of the storage system, and repairing the corrupted object in the first portion of the storage system using erasure codes and the retrieved minimum number of missing data blocks. | ||
| 申请公布号 | US9201733(B2) | 申请公布日期 | 2015.12.01 |
| 申请号 | US201313800213 | 申请日期 | 2013.03.13 |
| 申请人 | FUTUREWEI TECHNOLOGIES, INC. | 发明人 | Verma Ajit;Hughes James;Liu Xian |
| 分类号 | G06F11/10 | 主分类号 | G06F11/10 |
| 代理机构 | Slater & Matsil, L.L.P. | 代理人 | Slater & Matsil, L.L.P. |
| 主权项 | 1. A method for data repair in a storage system comprising: determining, by a processor, a minimum number of missing data blocks needed to repair a corrupted object in a first portion of the storage system using erasure codes, wherein the missing data blocks are not available in the first portion of the storage system; retrieving only the minimum number of missing data blocks needed to repair the corrupted object from an uncorrupted copy of the corrupted object stored in a second portion of the storage system; and repairing the corrupted object in the first portion of the storage system using erasure codes and the retrieved minimum number of missing data blocks. | ||
| 地址 | Plano TX US | ||