Abstract: A technique includes accessing file write operations that are provided by an operating system of a computer system. The file write operations are associated with a file. The technique includes determining an observed signature of the file based on the file write operations; and based on the observed signature, detecting an issue that is associated with the file. A responsive action is initiated in response to the detection of the issue.

Abstract: In some examples, a system identifies a first block input/output (I/O) operation relating to writing metadata for a data object, the metadata of the first block I/O operation comprising first object type information. The system generates, based on a header of a second block I/O operation relating to writing object content to a target data object, second object type information relating to an object type of the target data object. The system compares the first object type information in the metadata of the first block I/O operation to the second object type information. Based on the comparing, the system determines whether an anomaly relating to data has occurred.