Nippon Telegraph and Telephone Corporation

Kotaro Mihara

Nobuhiro Kimura

Takato Toda

Minoru Sakuma

Toshifumi Sano

I Syu

In an updating method according to the present embodiment, a virtual machine (-A) is stopped, a virtual machine (-B) is started up using a new VM image (-B) to which a link to a database (-) is set, and the virtual machine (-B) is switched to an active system. A virtual machine (-A) is stopped and a virtual machine (-B) is started up using a new VM image (-B) to which a link to a database (-) is set.

Software updating apparatus, software updating method, and program

The present invention aims to reduce the amount of backup to be transferred, and reduce the recovery time, in the case of a server device built in a virtual environment. A VMconnects a plurality of volumesand, starts up software installed on the volumefrom the volume, stores DB data in the volume, and acquires snapshots of the volumesandat different intervals for each, thereby backing up the imagesand

Backup restoration method and backup restoration device

A selection device includes a storage unit and a selection unit. The storage unit stores the write time and the read time of each of a plurality of nodes. The selection unit selects a first response condition in response to a data write request on the basis of the write time of each of the plurality of nodes such that the response time for the data write request becomes shorter than a requirement value of the write time and the number of nodes in which writing has been completed increases. The selection unit selects a second response condition in response to a data read request on the basis of the first response condition and the read time of each of the plurality of nodes such that the response time for the data read request becomes shorter than a requirement value of the read time.

Selection apparatus, selection method, and program

A processing apparatus includes a virtualization control unit configured to virtualize hardware, and a network providing unit configured to provide a network function by using a resource virtualized by the virtualization control unit. The network providing unit includes a notification reception unit configured to receive, from a management apparatus configured to manage the virtualization control unit, notification data including a first countermeasure for a first fault caused in the virtualization control unit, a detection unit configured to detect a second fault caused in the network providing unit and generate detection data including a second countermeasure for the second fault, and a countermeasure unit configured to execute a countermeasure associated with a condition satisfied by the notification data or the detection data with reference to priority data indicating a countermeasure given priority in a case where a predetermined condition is satisfied, out of the first countermeasure and the second countermeasure.

Processing apparatus, processing system, processing method and processing program

An IA server includes a plurality of execution units that execute respective virtual machines of a plurality of disaster recovery stations corresponding one-to-one to a plurality of active stations. The plurality of disaster recovery stations includes a virtualized call control server that performs call processing when an active station is not operating, and a control unit that controls an operation of the virtual machines. The control unit activates, at normal times, the virtual machines, and deactivates, when any active station of the plurality of active stations is not operating, a virtual machine of a disaster recovery station of the plurality of disaster recovery stations other than a virtual machine of a disaster recovery station of the plurality of disaster recovery stations corresponding to the active station not operating, and operates only the virtual machine of the disaster recovery station corresponding to the active station not operating.

Call control apparatus, call processing continuation method and call control program

A duplex operation system including: a plurality of general-purpose devices on each of which a plurality of virtual machines are mounted; and a virtual machine controller that controls a duplex operation performed by two systems, an active system and a standby system, of the virtual machines. When detecting a failure of the active system, the virtual machine controller stops the virtual machine of the active system, activates the virtual machine of the standby system corresponding to the stopped active system, and reconfigures the standby system of the activated virtual machine on the hardware of the stopped virtual machine, and when detecting a failure in the virtual machine of the reconfigured standby system, the virtual machine controller reconfigures the standby system of the failed virtual machine on the general-purpose devicedifferent from the general-purpose devicein which the virtual machine of the active system has been stopped.

Duplexed operation system and method therefor

A failure notification system includes a logical configuration provider which provides logical configurations in which a plurality of types of hardware are virtualized, a processor using logical configurations provided from the logical configuration provider, and a failure notifier which notifies the processorof a failure in the logical configuration provider. A notifier includes a storage devicewhich stores hardware configuration data in which an ID of the hardware is associated with an ID of a logical configuration corresponding to the hardware, a logical configuration identifier which identifies a logical configuration corresponding to hardware from which a failure is detected from the hardware configuration data when a failure in the hardware is detected, and a notifier which notifies the processor of occurrence of a failure in the logical configuration identified by the logical configuration identifier.

Growing community of inventors

Musashino, Japan

Kotaro Mihara