| 发明名称 |
BACK-UP AND RESTORATION OF DATA BETWEEN VOLATILE AND FLASH MEMORY |
| 摘要 |
In one embodiment, a method for back-up of data to flash memory is provided. Backed up data is organized into one or more stripes, wherein a stripe comprises a set of pages across all available flash memory devices which have a same block and page address. Responsive to encountering an error in a block of flash memory during back-up of a particular stripe of data, the particular stripe of data is rewritten starting at a next available page address and excluding a page of flash memory for the block having the error. Subsequent stripes of data in the block having the error are written to pages excluding the page of flash memory for the block having the error. |
| 申请公布号 |
US2015317210(A1) |
申请公布日期 |
2015.11.05 |
| 申请号 |
US201314439673 |
申请日期 |
2013.07.29 |
| 申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
Palmer Michael J.;Smith Peter M.;Wong Kelvin |
| 分类号 |
G06F11/14;G06F11/20;G06F11/10 |
主分类号 |
G06F11/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for back-up of data to flash memory, comprising:
organizing backed-up data into one or more stripes, wherein a stripe is comprises a set of pages across all available flash memory devices which have a same block and page address; and responsive to encountering an error in a block of flash memory during back-up of a particular stripe of data, performing:
re-writing the particular stripe of data starting at a next available page address and excluding a page of flash memory for the block having the error;writing subsequent stripes of data in the block having the error to pages excluding the page of flash memory for the block having the error; andembedding metadata for the particular stripe of data, the metadata including an indication of a location of the block having the error. |
| 地址 |
Armonk NY US |
