International Business Machines Corporation

Globalfoundries Inc.

Naresh Nayar

William Joseph Armstrong

Geraint M North

William John Starke

David Anthony Larson

Guy L Guthrie

Gary Ross Ricard

Hugh Shen

Randal Craig Swanberg

Phillip G Williams

Stuart Zachary Jacobs

Giles R Frazier

Freeman Leigh Rawson, Iii

Bruce Gerard Mealey

Richard Loise Arndt

Bryan Mark Logan

Michael Joseph Corrigan

Troy David Armstrong

Karthick Rajamani

Gregory Michael Nordstrom

Kyle Alan Lucke

Peter Joseph Heyrman

Cathy May

Kenneth Charles Vossen

Wade Byron Ouren

Carol B Hernandez

Christopher Francois

Josep Cors

Birgit Monika Pfitzmann

James Anthony Pafumi

David Alan Hepkin

Timothy Joseph Torzewski

Gerhard A Widmayer

Daniel James Henderson

Jeffrey Jay Scheel

Timothy R Marchini

Michael K Gschwind

Balaram Sinharoy

Michael Stephen Floyd

Malcolm Scott Ware

Charles Scott Graham

Robert H Bell, Jr

Sundeep Chadha

Richard Louis Arndt

Michael Jay Shapiro

Louis Bennie Capps, Jr

Edward John Silha

Thomas Edward Cook

Andrew T Koch

John Thomas O'Quin, Ii

Joaquin Hinojosa

Renato John Recio

Hung Qui Le

Warren Edward Maule

Luis Alfonso Lastras-Montano

James Stephen Fields, Jr

Maged M Michael

Harold Wade Cain, Iii

Benjiman L Goodman

Jose Eduardo Moreira

James A O'Connor

Thomas E Chefalas

Mahesh Viswanathan

Eric Eugene Retter

Kenneth Lee Wright

Andrzej P Kochut

Richard Edwin Harper

Lee Evan Eisen

Bradly George Frey

Albert James Van Norstrand, Jr

Scott Barnett Swaney

James Xenidis

Ravi Shankar

Michael Raymond Trombley

Prabhakar Nandavar Kudva

Morgan Jeffrey Rosas

Alongkorn Kitamorn

Thomas R Sand

Florian Graf

Henry Joseph May

Miles Robert Dooley

Gary Dean Anderson

Andreas Bieswanger

Richard Nicholas

Jorge Rafael Nogueras

Benjamin Herrenschmidt

Bernadette Ann Pierson

Bradley David McCredie

Michal Ostrowski

Thomas J Dewkett

Adam Charles Lange-Pearson

Richard Karl Kirkman

Milton Devon Miller, Ii

Pia Naoko Sanda

Ronald Edward Newhart

Sandy K Kao

Veena Patwari

James Lee Van Oosten

Tracy James Bashore

David W Siegel

A computer system comprises a processor unit arranged to run a hypervisor running one or more virtual machines; a cache connected to the processor unit and comprising a plurality of cache rows, each cache row comprising a memory address, a cache line and an image modification flag; and a memory connected to the cache and arranged to store an image of at least one virtual machine. The processor unit is arranged to define a log in the memory and the cache further comprises a cache controller arranged to set the image modification flag for a cache line modified by a virtual machine being backed up, but not for a cache line modified by the hypervisor operating in privilege mode; periodically check the image modification flags; and write only the memory address of the flagged cache rows in the defined log.

Tracking modifications to a virtual machine image that occur during backup of the virtual machine

An approach is provided in which an Infrastructure as a Service (IaaS) system is established in a cloud that includes a plurality of virtual machines. Each of the plurality of virtual machines are allocated to one or more of a plurality of datastores based on one or more user inputs. Next, one of a plurality of priorities are assigned to each of the plurality of virtual machines based on the one or more of the plurality of datastores to which each of the plurality of virtual machines is allocated. In turn, the virtual machines are recovered in the cloud in an order determined, at least in part, by their assigned one of the plurality of priorities.

Extending deployed cloud infrastructure for disaster recovery sequencing

Techniques for simulating exclusive use of a processor core amongst multiple logical partitions (LPARs) include providing hardware thread-dependent status information in response to access requests by the LPARs that is reflective of exclusive use of the processor by the LPAR accessing the hardware thread-dependent information. The information returned in response to the access requests is transformed if the requestor is a program executing at a privilege level lower than the hypervisor privilege level, so that each logical partition views the processor as though it has exclusive use of the processor. The techniques may be implemented by a logical circuit block within the processor core that transforms the hardware thread-specific information to a logical representation of the hardware thread-specific information or the transformation may be performed by program instructions of an interrupt handler that traps access to the physical register containing the information.

Providing logical partitions with hardware-thread specific information reflective of exclusive use of a processor core

Method for flagging data modification during a virtual machine backup

System for flagging data modification during a virtual machine backup

A mechanism is provided for disaster recovery of managed systems. Responsive to an identification of a virtual machine recovery condition occurring at a first node site, one or more virtual machines to be recovered to a second site node are identified. Further responsive to the identification of the virtual machine recovery condition occurring at the first node site and responsive to the identification of the one or more virtual machines to be recovered, at least some of records/metadata state data associated with the one or more virtual machines are transmitted to the second site node.

Disaster recovery of managed systems

A method to generate an executable orchestration process includes: querying a user to enter first computer code for activating a service; querying the user to enter second computer code for undoing actions performed in the activating; loading pre-defined third computer code for determining whether the activated service is a success or has an error, based on the service; loading pre-defined fourth computer code for correcting the error; generating an executable orchestration function from the first through fourth computer code; and generating the orchestration process from the executable orchestration function.

Orchestration process template for generation of orchestration process to tolerate errors

Virtual machine backup

In an embodiment, a request is received for a first partition to execute on a first virtual processor. If the first physical processor is available at a first node, the first virtual processor is dispatched to execute at the first physical processor at the first node that is the home node of the first virtual processor. If the first physical processor is not available, a determination is made whether the first physical processor is assigned to a second virtual processor and a home node of the second virtual processor is not the first node. If the first physical processor is assigned to a second virtual processor and the home node of the second virtual processor is not the first node, execution of the second virtual processor is stopped on the first physical processor and the first virtual processor is dispatched to the first physical processor.

Affinity of virtual processor dispatching

A method, executed by a computer, for allocating resources includes assigning resiliency attributes to a server having a workload, linking each server to a partner resource, duplicating the workload of each server in an offsite location accessible to the partner resource, detecting a disaster event, and transferring the workload of the server automatically to the partner resource. In some embodiments, the partner resource is a plurality of pool servers. The partner resource may be calculated by performing a capacity analysis. The partner resource may not a specifically assigned resource until a disaster occurs. In some embodiments, the workload is duplicated such that the recovery point objective of the workload is minimized. A computer program product and computer system corresponding to the methods are also disclosed herein.

Allocating and managing cloud computing resources for disaster recovery

In an approach for provisioning a server utilizing a virtual consistency group, a processor receives a request to provision a first server utilizing a first application consistency group, wherein the first application consistency group is a virtualized consistency group. A processor defines a storage consistency group. A processor assigns the first application consistency group to the storage consistency group. A processor provisions the first server. A processor assigns to the provisioned first server, storage specified by the first application consistency group.

Virtualization of consistency groups

Growing community of inventors

Rochester, MN, United States of America

Naresh Nayar