| 发明名称 | Limiting data loss on parity RAID groups | ||
| 摘要 | A method, computer program product, and computing system for sensing the occurrence of an uncorrectable condition within a data stripe of a RAID array. The data strip includes a plurality of data portions and a parity portion. One or more invalid data portions included within the plurality of data portions are identified. The one or more invalid data portions are populated with filler data having a known pattern, thus defining one or more filler portions. The parity portion is updated based, at least in part, upon the one or more filler portions, thus defining an updated data stripe that includes an updated parity portion. | ||
| 申请公布号 | US9268640(B1) | 申请公布日期 | 2016.02.23 |
| 申请号 | US201314137759 | 申请日期 | 2013.12.20 |
| 申请人 | EMC Corporation | 发明人 | Foley Robert P.;Proulx Ronald D.;Cassano Marc C. |
| 分类号 | G06F11/00;G06F11/10 | 主分类号 | G06F11/00 |
| 代理机构 | Holland & Knight LLP | 代理人 | Colandreo Brian J.;Whittenberger Mark H.;Holland & Knight LLP |
| 主权项 | 1. A computer-implemented method comprising: sensing the occurrence of an uncorrectable condition within a data stripe of a RAID array, wherein the data stripe includes a plurality of data portions and a parity portion; identifying one or more invalid data portions included within the plurality of data portions; populating the one or more invalid data portions with filler data having a known pattern, thus defining one or more filler portions; defining an intentionally invalid checksum for each of the one or more filler portions; and updating the parity portion based, at least in part, upon the one or more filler portions, thus defining an updated data stripe that includes an updated parity portion. | ||
| 地址 | Hopkinton MA US | ||