International Business Machines Corporation

Anil Laxman Palled

Sasikanth Eda

Abhishek Jain

Sandeep R Patil

Deepak R Ghuge

Abhishek Dave

A computer-implemented method for storing blocks of a file in a heterogeneous environment. The method may comprise receiving a command header for an operation associated with a file from a first data node, matching the enhanced metadata with capabilities of a second data node, and generating a block layout map for the file based at least in part on the enhanced metadata and the capabilities of the second data node. The command header may include enhanced metadata associated with a file, and the enhanced metadata may comprise a type of workload that generated the file and a data access pattern.

Selecting data nodes for WAN caching in a hybrid cloud environment

A computer-implemented method, according to one embodiment, includes: capturing a snapshot of data stored at a primary storage location, and determining a transaction identification which corresponds to each file operation included in the snapshot, where each file operation includes a respective number of sub-operations. Data included in the snapshot which corresponds to completed ones of the sub-operations is identified, and the determined transaction identifications as well as the identified data is used to populate entries in a data structure. The snapshot is sent to a secondary storage location, and an acknowledgement is received from the secondary storage location for each of the completed sub-operations that are successfully performed at the secondary storage location. Furthermore, the data structure is updated based on the received acknowledgements.

Establishing object atomicity in snapshot based disaster recovery environments

Methods and systems for encrypting data for a multi-tenant filesystem environment are provided. A system for encrypting data for a multitenant filesystem environment includes a file characteristics module that determines file characteristics for a file. The system also includes a user identification module that collects user identification information for one or more file operations, where a file operation in the one or more file operations is performed on a portion of the file. The system further includes a portion information module that gathers portion information about the portion of the file. Additionally, the system includes an encryption module that associates the portion information with a subtenancy encryption key in one or more subtenancy encryption keys based on the user identification information, where the one or more subtenancy encryption keys are associated with the file.

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Pune, India

Anil Laxman Palled