Patent ID: 8140907

Claim:
A method for troubleshooting virtual environment deployment based on two level file system signatures, comprising: comparing, by a processor, an image of a virtual machine taken at a point in time with an image of the virtual machine taken at a preceding point in time during an installation of software; creating a first level file system signature including a set of file names of files in image of a virtual machine taken at a point in time and associated status of the files as compared with the image of the virtual machine taken at a preceding point in time; creating a second level file system signature using file content differences of the files having modified status in the set of file names; comparing the first level file system signature with a first level file system signature pattern associated with one or more previous deployment of the same software and related to the same point in time; and comparing the second level file system signature with a second level file system signature pattern associated with the one or more previous deployment of the same software and related to the same point in time.