International Business Machines Corporation

Harigovind Ramasamy

Birgit Monika Pfitzmann

Nikolai A Joukov

Long Wang

Valentina Salapura

Mahesh Viswanathan

Richard Edwin Harper

Soumitra Sarkar

Kamal Bhattacharya

Matthias Schunter

Matthew A Markley

Bernhard Jansen

Axel Tanner

Shaya Potter

Sandhya Kapoor

Diego M Zamboni

Martim Carbone

A method of organizing computer resources includes receiving a specification defining a plurality of quiescence groups of independent component instances for each of at least two services, and performing a first load balancing of the quiescence groups across a plurality of physical servers to define a plurality of supergroups while assigning each of the physical servers across the supergroups.

Hardware placement and maintenance scheduling in high availability systems

Methods, systems, and computer program products for storage system-based replication for disaster recovery in virtualized environments are provided herein. A computer-implemented method includes identifying, among multiple storage aggregation units within a virtualized environment, one or more of the storage aggregation units to undergo a change in disaster recovery replication status from (i) enabled to disabled or (ii) disabled to enabled; determining one of multiple mechanisms to execute the change in disaster recovery replication status for each of the identified storage aggregation units by (i) implementing an optimization algorithm to each of the multiple mechanisms and (ii) identifying the one of the multiple mechanisms that minimizes data copy overhead based on the optimization algorithm; and executing the change in disaster recovery replication status for each of the identified storage aggregation units within the virtualized environment in accordance with the one of the multiple mechanisms that minimizes data copy overhead.

Storage system-based replication for disaster recovery in virtualized environments

At least one anomaly associated with at least one actual hardware element in a computer system having a plurality of hardware elements is addressed. The anomaly is detected, and, responsive to the detection, a virtualization layer is inserted between (i) an operating system of the computer system, and (ii) the plurality of hardware elements. Hardware emulation and/or selective hardware activation/deactivation are performed on the at least one actual hardware element by the virtualization layer. The insertion of the virtualization layer is accomplished in an on-the-fly manner.

Hardware emulation using on-the-fly virtualization

Automating network reconfiguration such as firewall reconfiguration in migrations may include determining network reconfiguration needs in one or more network functionalities of the target environment based on the discovering; and applying the network reconfiguration needs to the one or more network functionalities in the target environment.

Automating network reconfiguration during migrations

Component relinking in migrations may include discovering one or more dependencies in one or more components; planning one or more new locations where the one or more components are to be placed; determining relinking needs in the one or more components based on the discovering and the planning; and applying the relinking needs.

Component relinking in migrations

A file system interface is simulated out of at least a portion of a dormant computer system. File-based discovery is performed on the simulated file system interface to obtain a detailed inventory of at least the portion of the dormant computer system. The detailed inventory includes one or more of software profiles of at least the portion of the dormant computer system, software instances of at least the portion of the dormant computer system, services of at least the portion of the dormant computer system, and data objects used by the services.

Detailed inventory discovery on dormant systems

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Tarrytown, NY, United States of America

Harigovind Ramasamy