| 发明名称 |
JOURNAL-LESS RECOVERY FOR NESTED CRASH-CONSISTENT STORAGE SYSTEMS |
| 摘要 |
A method for storing and recovering data for a file system includes a write process that performs a write instruction for data that includes atomically updating corresponding data blocks and metadata-links on a storage medium. The metadata-links contain links from data blocks to parent metadata blocks and links from metadata blocks to the parent metadata blocks. A journal-less recovery process that detects one or more inconsistencies for file system blocks comprising data blocks or metadata blocks upon a system failure based on one or more comparisons of information for the file system blocks. |
| 申请公布号 |
US2016124812(A1) |
申请公布日期 |
2016.05.05 |
| 申请号 |
US201414533034 |
申请日期 |
2014.11.04 |
| 申请人 |
International Business Machines Corporation |
发明人 |
Sarkar Prasenjit;Saxena Mohit |
| 分类号 |
G06F11/14 |
主分类号 |
G06F11/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for storing and recovering data for a file system comprising:
a write process that performs a write instruction for data that includes atomically updating corresponding data blocks and metadata-links on a storage medium, wherein the metadata-links contain links from data blocks to parent metadata blocks and links from metadata blocks to the parent metadata blocks; and a journal-less recovery process for detecting one or more inconsistencies for file system blocks comprising data blocks or metadata blocks upon a system failure based on one or more comparisons of information for the file system blocks. |
| 地址 |
Armonk NY US |
