| 摘要 |
A computing device manages access to a block-based storage device. The computing device has an operating system with a storage stack. The storage stack may have a file system, a device driver driving the block-based storage device, and a storage component intermediating between the device driver and the file system. The file system may receive a request to tag a file that is managed by the file system and is stored on the storage device. In response the file system requests the storage component to tag blocks corresponding to the file. The device driver forwards or translates the request from the storage component to the storage device. In turn, the storage device stores indicia of the blocks. Data stored in the identified blocks may receive differentiated treatment, by the storage device and/or the operating system, such as a particular choice of backing store, preferential handling, or others. |
