Hitachi, Ltd.

At&t Intellectual Property I, LP

Keitaro Uehara

Yuji Tsushima

Toshiomi Moriki

Takashige Baba

Naoki Hamanaka

Hideya Akashi

Toru Shonai

Yoshiko Yasuda

Jun Okitsu

Naoya Hattori

Tsuyoshi Tanaka

Tetsuhiko Okada

Masamori Kashiyama

Takashi Aoyagi

Keishi Nakayama

Shinichiro Toya

Daisuke Yoshida

Hiroaki Akutsu

Kaustubh Joshi

Yih-Farn Robin Chen

Naoya Okada

Matti A Hiltunen

Yoshiki Murakami

Hideki Okita

Ken Sugimoto

Kazuhiko Mizuno

Richard Dale Schlichting

Masahiro Yoshizawa

Nobuyuki Muranaka

Yuta Sawa

Atsushi Nakajima

Yu Xiang

Yoshinori Wakai

Cloud-based orchestration may be leveraged to create flexible storage solutions that use continuous adaptation to tailor themselves to their target application workloads that made provide efficiencies in performance, cost, or scalability over conventional designs.

Adaptive software-defined storage for cloud storage workloads

An I/O control method and system for respectively achieving both acceleration of I/O processing and redundantization of data. The present invention is based upon an I/O control method of performing control related to an I/O request from a virtual machine operated in a computer provided with an I/O device that executes I/O processing, and the I/O control method includes a first step in which an I/O analysis unit determines whether or not data redundantization processing related to the I/O request is executed on the basis of the I/O request from the virtual machine and setting information for enabling identifying whether or not the data redundantization processing is executed and a second step in which a control unit transmits an I/O command related to the I/O request to a data redundantization mechanism that executes the data redundantization processing on the basis of a determination result in the first step.

I/O control method and I/O control system

A computer system, comprising: a virtual computer system and a verification system, the virtual computer system including: a deployment request reception part for receiving a deployment request; a server search part for searching for a server, for which a security strength equal to or larger than the security strength associated with target image data is set; a deployment instruction part for instructing the retrieved server to deploy the target image data; and a virtual computer management part for generating a virtual computer for executing an application on the retrieved server by using the target image data, and transmitting a integrity report, which is obtained on the boot of the virtual computer for executing the application and used to verify the integrity relating to the virtual computer for executing the application, to a verification server.

Computer system and virtual computer management method

A method of controlling a virtual machine of a computer, the computer comprising: a physical machine comprising an I/O adapter having a physical function that creates a virtual function; a virtualization unit that provides computer resources of the physical machine to the virtual machine; and an OS that is executed on the virtual machine, the virtualization unit creating a virtual machine to which the virtual function is assigned, the virtual machine running the OS thereon, the method comprising: a first step of detecting, by the virtualization unit, a state change of the I/O adapter; a second step of identifying, by the virtualization unit, when a state of the I/O adapter becomes a predetermined state, the virtual machine to which the virtual function is assigned; and a third step of notifying, by the virtualization unit, the OS running on the identified virtual machine of the state of the I/O adapter.

Method and apparatus for resetting a physical I/O adapter without stopping a guest OS running on a virtual machine

In order to provide an interface of acquiring physical position information of an I/O device on a virtual machine monitor having an exclusive allocation function of the I/O device and optimize allocation of a resource to a virtual server by using the acquired physical position information, a virtual machine monitor includes an interface of allocating a resource in accordance with a given policy (a parameter of determining to which a priority is given in distributing resources) for an I/O device, a CPU NO., and a memory amount request to guest OS. Further, the virtual machine monitor includes an interface of pertinently converting physical position information of the resource allocated by the virtual machine monitor to notice to guest OS.

Virtual machine monitor and multiprocessor system

A failure factor can be promptly carved up by effectively prioritizing the ports to which MEPs are assigned in a condition where the maximum number of MEPs is limited. A network monitoring server monitors a network having plural switch devices. The plural switch devices each have a communication confirmation function using transmission and reception of a monitoring frame between ports. An upper limit is set to the number of ports to which maintenance end points (MEPs) are assignable among the respective ports of the plural switch devices. The network monitoring server calculates, for each of the plural switch devices, a monitoring priority corresponding to the probability of failures of a device connected to a network path including the port or the port, and generates data for displaying the calculated monitoring priority of each port in association with each port.

Network monitoring server and network monitoring system

In order to provide an inexpensive way to share an I/O device loaded in an I/O drawer among a plurality of blades, in a server system including a plurality of servers, a PCI device, and a manager for initializing a PCI switch, the PCI device has a plurality of virtual functions (VFs). The PCI switch, which has VF allocation information which indicates association between the servers and the VFs, is configured to: receive a transaction from one of the servers or from the PCI device; when the received transaction is a transaction sent from the one of the servers, remove a server identifier with which a sender server is identified and transfer the received transaction to the PCI device; and when the received transaction is a transaction sent from the PCI device, attach a server identifier that is determined based on the VF allocation information.

Computer system and method for sharing PCI devices thereof

To make it possible to take over an IO configuration that is assigned to logical partitions in reallocation of the logical partitions, and to make an IO access work normally. A computer system has a server having an IO bridge, a switch that has a first IO bridge for connecting with the IO bridge of the server through a bus and plural second IO bridges for connecting to plural IO devices through a bus, and bus number assignment management means for fixedly assigning mutually different PCI bus numbers to the plural second IO bridges.

Computer system and bus assignment method

It is provided a computer system including computers, PCI switches each having first and second ports, a switch management module and a power control module. The switch management module includes an identifying module for identifying a first port coupled to the computer to be booted up, and notifying the PCI switch of the first port, an instruction module for instructing the power control module to boot up the computer, and an allocation management module for managing allocation of one of the I/O device to the computer and notifying the one of the PCI switches of the allocation after the computer is booted up. The PCI switches includes a preventing control module for preventing the computer from detecting a configuration of the first port, and a virtual switch generating module for generating a virtual switch that couples the first port and the second port based on the notification.

Computer system, method of managing PCI switch, and management server

It is provided a computer system comprising a plurality of computers; a PCI switch; and a plurality of I/O devices connected to the PCI switch, wherein the communication path includes a virtual switch and virtual bridges, and the PCI switch comprises a communication path generating module for setting the virtual switches and the virtual bridges, a virtual switch group management module for creating a virtual switch group including the at least one of the virtual switches, and setting an enabled flag to one of the virtual switches included in the virtual switch group, and a port management module for managing relation between each of the generated communication paths and the plurality of ports included in the each of the generated communication paths.

Computer system managing I/O path and port

Provided is a method of controlling a virtual computer system in which a physical computer includes a plurality of physical CPUs that is switchable between a sleep state and a normal state, and a virtualization control unit divides the physical computer into a plurality of logical partitions to run a guest OS in each of the logical partitions and controls allocation of resources of the physical computer to the logical partitions, causes the virtualization control unit to: receive an operation instruction for operating the logical partitions; and if the operation instruction is for deleting a virtual CPU from one of the logical partitions, delete this virtual CPU from a table for managing virtual CPU-physical CPU allocation and put, if the deleting leaves no virtual CPUs allocated to one of the physical CPUs that has been allocated the deleted virtual CPU, this one of the physical CPUs into the sleep state.

Power control method for virtual machine and virtual computer system

Arbitration of IO accesses and band control based on the priority of virtual servers is enabled while curbing performance overhead during IO sharing among the virtual servers. A virtual machine system includes a CPU, a memory, a hypervisor that generates plural virtual servers, and an IO controller that controls an IO interface. The IO controller includes: a DMA receiving unit that receives DMA requests from the IO interface; a decoder that decodes received DMA requests and locates the corresponding virtual servers; a DMA monitoring counter that monitors DMA processing status for each of the virtual servers; a threshold register set in advance for each of the virtual servers; and a priority deciding unit that compares the DMA monitoring counter and the value of the threshold register, and based on processing priority obtained as a result of the comparison, decides the priority of processing of the received DMA requests.

Virtual machine system

The physical server includes a hypervisor for managing an association between the virtual server and the I/O device allocated to the virtual server. The I/O switch includes: a setting register for retaining a request to inhibit a transaction from being issued from the I/O device to the virtual server; a Tx inhibition control module for performing an inhibition of the transaction from the I/O device to the virtual server, and guaranteeing a completion of a transaction from the I/O device issued before the inhibition; a virtualization assist module for converting an address of the virtual server into an address within a memory of the physical server; and a switch management module for managing a configuration of the I/O switch.

Growing community of inventors

Kokubunji, Japan

Keitaro Uehara