International Business Machines Corporation

Vasu Vallabhaneni

James Anthony Pafumi

Morgan Jeffrey Rosas

Vinit Jain

Dwip N Banerjee

Venkat Venkatsubra

Lilian Sylvia Fernandes

Jacob Jason Rosales

Michael Paul Cyr

Patrick Tam Vo

Neal Richard Marion

Rakesh Sharma

Maria Garza

Veena Ganti

Anbazhagan Mani

Kavitha Vittal Murthy Baratakke

Jorge Rafael Nogueras

Veena Patwari

Nathaniel S Tomsic

Chintamani Praksh Siddeshwar

Rupesh Kumar Thota

Deanna Lynn Quigg Brown

David Nevarez

James P Allen

Robert G Kovacs

David Zhiwei Dai

Richard Perry Youngman

Prashant Anant Paranjape

Eduardo Reyes

James Britt Partridge

Elizabeth Jean Murray

Michael R Rowden

Chandan Chopra

Alexander Medvedev

Ray W Anderson

Shankar Manjunatha

Andrei V C Ta

Carl Duane Bender

Basu Vaidyanathan

Eduardo N Spring

George Francis Ramsay, Iii

Kumar Ravi

Jeffrey Paul Messing

George James Romano

Karthik Subbian

Ramakrishnan Kannan

Rashmi Narasimhan

Ranadip Das

Ping Chen

Sandip A Amin

Robert Scott Manning

Ketan Priyakant Pancholi

Rishika Kedia

Kavitha Ramalingam

Kiet Hien Lam

Hariganesh Muralidharan

Prithvi Srihari

Anu P Shaw

Ravindran Rajan

Ine Youngman, Legal Representative

Deanna Lynn Brown

According to one aspect of the present disclosure, a method and technique for mobility operation resource allocation is disclosed. The method includes: receiving a request to migrate a running application from a first machine to a second machine; displaying an adjustable resource allocation mobility setting interface indicating a plurality of mobility settings comprising at least one performance-based mobility setting and at least one concurrency-based mobility setting; receiving, via the interface, a selection of a mobility setting defining a resource allocation to utilize for the migration; and migrating the running application from the first machine to the second machine utilizing resources as set by the selected mobility setting.

Mobility operation resource allocation

An application permissions processing system and method for processing application permission requests is provided. The method includes the steps of detecting that an application has been downloaded to a computing system, receiving one or more permission requests from the application for resources located on the computing system, determining that at least one of the one or more permission requests is a required permission of the application, prompting the user to decide the one or more permission requests, receiving a denial of the required permission from the user, in response to the prompting, and responding to the application by providing spoofed resources to the application to satisfy the required permission of the application.

Selective processing of application permissions

Embodiments disclose techniques for migrating a logical partition from a source computing system with an inactive I/O server to another target computing system. In one embodiment, a computing system collects and stores the resource configuration of the logical partition, upon detecting a change in a resource configuration of a logical partition on the source computing system. Once the computing system detects that a I/O server on the source computing system is inactive for a migration of the logical partition, the computing system uses the collected resource configuration to configure the logical partition on the target computing system.

Migration of a logical partition or virtual machine with inactive input/output hosting server

A system, and computer usable program product for addressing a workload partition are provided in the illustrative embodiments. A packet of data directed to the WPAR and including a combined address is received at a software stack. A determination is made whether the combined address includes an identifier that is reserved. If the identifier is not reserved, the identifier is used to identify the WPAR in the data processing system and the packet is sent to the WPAR. The software stack is an application configured to enable data communication using a protocol of the packet, and is modified to detect, recognize, and process the combined address for routing the packet to the WPAR. The combined address may be logically formed using an identifier associated with the data processing system and an identifier associated with the WPAR, which may be located in different portions of the packet.

Addressing a workload partition

A method, apparatus, and computer program product are provided in a data processing system for performing a logical partition migration utilizing multiple mover service partition pairs. Responsive to a virtual machine monitor initiating a logical partition migration operation to move a logical partition from a source system to a destination system, a plurality of input/output paths are established between a plurality of mover service partition pairs. The virtual machine monitor performs the logical partition migration operation using the plurality of mover service partition pairs to transfer a memory image of the logical partition from the source system to the destination system to effect the logical partition migration operation. Responsive to failure of one of the plurality of input/output paths, the virtual machine monitor may complete the logical partition migration operation using at least one remaining mover service partition pair.

Performing a logical partition migration utilizing plural mover service partition pairs

With N_Port ID Virtualization (NPIV), a managed system can be configured so that multiple logical partitions (LPARs) can access independent physical storage through the same physical fiber channel adapter. An NPIV client recovery component of a virtualization management component, such as a Power Hypervisor (pHYP), provides the emulation mapping between server and client virtual fiber channel adapters. The pHYP also provides a mechanism that prevents client partition crashes when the NPIV server (e.g., a VIOS logical partition) goes down. When the NPIV server is rebooted or powers down, the pHYP handles the client LPARs to avoid a crash by removing processing resources from the client logical partition. Thereby, the client logical partition is prevented from attempting to access a root volume group in physical storage via the NPIV server. The pHYP allocates processor resources to the client LPAR when the NPIV server is again available for I/O processing.

Mechanism for NPIV client recovery when NPIV server goes down

A mechanism is provided in a data processing system for performing a logical partition migration utilizing multiple paths. Responsive to a virtual machine monitor initiating a logical partition migration operation to move a logical partition from a source system to a destination system, the mechanism allocates a plurality of memory pools and a plurality of threads from a mover service partition to the virtual machine monitor. The virtual machine monitor performs the logical partition migration operation utilizing each of the plurality of threads to transfer a corresponding one of the plurality of memory pools from the source system to the destination system to effect the logical partition migration operation.

Utilizing multiple memory pools during mobility operations

According to one aspect of the present disclosure a system and technique for mobility operation resource allocation is disclosed. The system includes a first machine having a running application, and a management console operable to manage migrating the running application from the first machine to a second machine. The management console is operable to: display an interface indicating a plurality of selectable mobility settings, each mobility setting corresponding to a desired resource allocation to utilize for the migration; receive via the interface, a selection of a mobility setting to apply for migrating the running application; and initiate migration of the running application from the first machine to the second machine utilizing resources as set by the selected mobility setting.

A first Virtual Input/Output Server (VIOS) of a VIOS cluster performs the functions of: generating, at a sending daemon of the first VIOS, a send message that is to be transmitted to a receiving daemon at a second VIOS; in response to completion of the generating of the send message, forwarding the send message to a sending virtual small computer systems interface (vscsi) kernel extension (VKE) via a system call interface; and in response to the sending VKE receiving the send message from the sending daemon, forwarding the send message to one or more second VIOSes within the VIOS cluster utilizing a kcluster interface. The sending VKE parses at least one of a message header and a sub-header of the send message; and responsive to detection of a broadcast setting for the send message, the VKE forwards the send message to all nodes within the cluster via a cluster broadcast.

Communication protocol for virtual input/output server (VIOS) cluster communication

Systems, methods and media for providing to a plurality of WPARs private access to physical storage connected to a server through a VIOS are disclosed. In one embodiment, a server is logically partitioned to form a working partition comprising a WPAR manager and individual WPARs. Each WPAR is assigned to a different virtual port. The virtual ports are created by using NPIV protocol between the WPAR and VIOS. Thereby, each WPAR has private access to the physical storage connected to the VIOS.

Virtualizing storage for WPAR clients

Virtualizing storage for WPAR clients that share a common operating system of logical partition

Virtualizing storage for WPAR clients using node port ID virtualization

Virtualizing storage for WPAR clients using key authentication

Growing community of inventors

Austin, TX, United States of America

Vasu Vallabhaneni