| 摘要 |
A file system includes a plurality of entries, wherein each entry is configured to store an indication of data block locations corresponding to a specified file, and wherein each entry is further configured to store an indication of mirrored data block locations corresponding to the specified file. Each entry may include one or more dirty indicators to identify out-of-sync data blocks. In yet another embodiment, the system may be configured to resynchronize a plurality of instances of data blocks depending upon dirty indicators corresponding to the plurality of instances of data blocks.
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