Disk block relocation de-optimization detection methodology and applications

摘要

An apparatus is equipped with a disk block relocation de- optimization detection function that detects the de-optimization of a disk block relocation of a first disk block relocation optimization methodology by a second disk block relocation optimization methodology, employing a key file of the first disk block relocation optimization methodology. The optimization principles of the two methodologies conflict at least partially with each other. In one embodiment, the function performs the detection by monitoring disk block allocation changes to the key file whose file clusters have been allocated disk blocks in a manner that is inconsistent with one or more optimization principles of the second disk block relocation optimization methodology. In one embodiment, the function also causes the key file to be created by a file subsystem, and then reallocates the file clusters to disk blocks in the inconsistent manner.