International Business Machines Corporation

Rahul Balani

Akshat Verma

Deepak Kumar Jeswani

Kamal Kumar Bhattacharya

Dipyaman Banerjee

Aritra Sen

Sujesha Sudevalayam

Methods and systems for image migration. There are received, at an image reader, files of at least one image of at least one virtual machine from a first environment. Points of variability are identified within the files, with respect to preparation for functioning in a second environment. Each point of variability is associated with corresponding metadata, and each point of variability is stored with its corresponding metadata. The at least one image is reconfigured to function in the second environment, such reconfiguring comprising adjusting the points of variability via using the metadata. The reconfigured image is deployed to the second environment.

Virtual machine image migration

Techniques, systems, and articles of manufacture for automated application reconfiguration. A method includes identifying, for each of one or more configuration files in a pre-configured source virtual machine, a corresponding configuration file in a target virtual machine, identifying one or more mis-configured and/or missing points of variability in the one or more identified configuration files in the target virtual machine based on information derived from the one or more configuration files in the source virtual machine, and reconfiguring the target virtual machine by replacing each identified mis-configured point of variability with a given value based on the information derived from the one or more configuration files in the source virtual machine, and adding each identified missing point of variability at a given location with a given value and a given format based on the information derived from the one or more configuration files in the source virtual machine.

Automated application reconfiguration

Techniques, systems, and articles of manufacture for input/output de-duplication based on variable-size chunks. A method includes partitioning virtual block data into multiple variable-sized chunks, caching each of the multiple variable-sized chunks in a chunk cache according to content of each of the multiple variable-sized chunks, initializing virtual block-to-chunk mapping and chunk-to-physical block mapping for each of the multiple variable-sized chunks, and detecting duplicate disk input and/or output requests across multiple hosts based on content-based mappings of the input and/or output requests to the chunk cache and the virtual block-to-chunk mapping and chunk-to-physical block mapping for each of the multiple variable-sized chunks in the chunk cache.

Growing community of inventors

New Delhi, India

Rahul Balani